python_notes/2학년 정보수업 과제 답_안.ipynb

{"nbformat":4,"nbformat_minor":0,"metadata":{"colab":{"provenance":[],"toc_visible":true,"authorship_tag":"ABX9TyNYhnjZaHAk2KAluSoKT16H"},"kernelspec":{"name":"python3","display_name":"Python 3"},"language_info":{"name":"python"}},"cells":[{"cell_type":"markdown","source":["#22036의 Python 시험대비 교재\n","* 이 교재는 여러 수준의 독자를 위해 제작되었습니다\n","* 오류나 지적사항, 건의사항은 카톡이나 [여기로](https://forms.gle/cLfQGtNjQmg2hAjm7) 문의해주세요\n","* 이해가 가지 않는 부분이나 추가 설명(추가 예시라던가 예제라던가)이 필요하시면 마찬가지로 문의해주세요\n","* '~~알고리즘 정리해주세요' '풀이방법 정리해주세요' 같은 요구사항도 마찬가지로\n","* 피드백 적극 반영합니다\n","* ~~문의좀 해줘요 자습하기싫어~~"],"metadata":{"id":"SLoCnBoATnMH"}},{"cell_type":"markdown","source":["# [과제1](https://sweltering-azimuth-166.notion.site/1-e9cc339bf5df4c2bad79d0752d5fb7e0)"],"metadata":{"id":"oPU-RqCd7dRw"}},{"cell_type":"markdown","source":["### 1.url에 저장된 웹 페이지 주소에서 도메인을 출력하시오. (웹 페이지 주소는 변경 가능)\n","\n","| url=\"http://gsa.hs.kr\" |\n","| --- |\n","| 결과: kr |"],"metadata":{"id":"SBtzvO-A7hXj"}},{"cell_type":"code","source":["url = \"http://gsa.hs.kr\"\n","domain = url.split('.')[-1]\n","print(domain)"],"metadata":{"id":"t7WjglmM7zPJ","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901900305,"user_tz":-540,"elapsed":5,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"203474bc-3ff6-463f-9d13-5b8f72e555ee"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["kr\n"]}]},{"cell_type":"markdown","source":["### 2.다음 문자열에서 소문자 ‘b’를 대문자 ‘B’로 변경하시오.\n","\n","| string=”bubble2345bubble” |\n","| --- |\n","| 결과: BuBBle2345BuBBle |"],"metadata":{"id":"eIDYyX7r7z8t"}},{"cell_type":"code","source":["str = \"bubble2345bubble\"\n","char = 'b'\n","str = str.replace(char, char.upper())\n","print(str)"],"metadata":{"id":"7c95PDVw74yI","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901905731,"user_tz":-540,"elapsed":2,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"abf67781-3f34-4c19-d8fa-aa3fd5a6d96e"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["BuBBle2345BuBBle\n"]}]},{"cell_type":"markdown","source":["### 3.다음 문자열 \"dfadfNikedfa\" 에서 \"Nike\" 문자열만 출력하시오.\n","\n","| str = \"dfadfNikedfa” |\n","| --- |\n","| 결과: Nike |"],"metadata":{"id":"R1p8DI--76sz"}},{"cell_type":"code","source":["str = \"dfadfNikedfa\"\n","start = str.find(\"Nike\")\n","l = len(\"Nike\")\n","print(str[start:start+l])"],"metadata":{"id":"m2803oyZ7-8y","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901910412,"user_tz":-540,"elapsed":2,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"c138fbff-88ae-4ce0-cb50-d3801f06bf21"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["Nike\n"]}]},{"cell_type":"markdown","source":["### 4.사용자로부터 5자리의 정수를 입력받아 자리수의 합을 계산하는 프로그램을 완성하시오.\n","\n","(인덱스, 슬라이스 및 반복문 사용 안 됨.)"],"metadata":{"id":"el02859ZXuvP"}},{"cell_type":"code","source":["number = int(input())\n","sum = 0\n","sum += number % 10\n","number //= 10\n","sum += number % 10\n","number //= 10\n","sum += number % 10\n","number //= 10\n","sum += number % 10\n","number //= 10\n","sum += number % 10\n","print(sum)"],"metadata":{"id":"w2L0XOTrX-kz","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901919175,"user_tz":-540,"elapsed":5626,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"6268e549-bbcc-4a5d-fa49-218c04540317"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["12345\n","15\n"]}]},{"cell_type":"markdown","source":["# [과제2](https://sweltering-azimuth-166.notion.site/2-74f7622ac3104c21a6e3605989df2e8f)"],"metadata":{"id":"88AGiqU_X_Ip"}},{"cell_type":"markdown","source":["### 1.다음 소스 코드를 완성하여 변수 x가 11과 20 사이면 '11\\~20', 21과 30 사이면 '21\\~30', 아무것도 해당하지 않으면 '아무것도 해당하지 않음'이 출력되게 만드시오.\n","```python\n","x = int(input())\n","```"],"metadata":{"id":"w28rmzb8Yi7A"}},{"cell_type":"code","source":["x = int(input())\n","\n","if x >= 11 and x <= 20:\n","    print(\"11~20\")\n","elif x >= 21 and x <= 30:\n","    print(\"21~30\")\n","else:\n","    print(\"아무것도 해당하지 않음\")"],"metadata":{"id":"S-sMhIetYvkr","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901926150,"user_tz":-540,"elapsed":3678,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"4eab759c-a89c-4499-85e5-2da6413826cb"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["32\n","아무것도 해당하지 않음\n"]}]},{"cell_type":"markdown","source":["### 2.연도가 주어졌을 때, 윤년이면 True, 아니면 False를 출력하는 프로그램을 작성하시오.\n","\n","(운년은 연도가 4의 배수이면서, 100의 배수가 아닐 때 또는 400의 배수일 때이다. 예를 들어, 2012년은4의 배수라서 윤년이지만, 1900년은 4의 배수이지만, 100의 배수이기 때문에 윤년이 아니다. 하지만 2000년은 400의 배수이기 때문에 윤년이다.)"],"metadata":{"id":"cEBbXrAJYyNj"}},{"cell_type":"code","source":["year = int(input())\n","\n","if (year % 4 == 0 and year % 100 != 0) or year % 400 == 0:\n","    print(True)\n","else:\n","    print(False)"],"metadata":{"id":"XsTFC-FRY1L1","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1681438023820,"user_tz":-540,"elapsed":4947,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"8225d99e-d25d-4d15-b8c3-ebf85a348dd2"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["2022\n","False\n"]}]},{"cell_type":"markdown","source":["### 3.시험 점수를 입력받아 90 ~ 100점은 A, 80 ~ 89점은 B, 70 ~ 79점은 C, 60 ~ 69점은 D, 나머지 점수는 F를 출력하는 프로그램을 작성하시오."],"metadata":{"id":"7OAmMpoMY3Ex"}},{"cell_type":"code","source":["score = int(input())\n","\n","if score >= 90 and score <= 100:\n","    print(\"A\")\n","elif score >= 80:\n","    print(\"B\")\n","elif score >= 70:\n","    print(\"C\")\n","elif score >= 60:\n","    print(\"D\")\n","else:\n","    print(\"F\")"],"metadata":{"id":"4ahu69uBZLrf","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901949773,"user_tz":-540,"elapsed":3297,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"813c08af-3275-444b-94a1-0ba5147252b2"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["87\n","B\n"]}]},{"cell_type":"markdown","source":["### 4.[사분면 고르기](https://www.acmicpc.net/problem/14681)\n","\n","흔한 수학 문제 중 하나는 주어진 점이 어느 사분면에 속하는지 알아내는 것이다. 사분면은 아래 그림처럼 1부터 4까지 번호를 갖는다. \"Quadrant n\"은 \"제n사분면\"이라는 뜻이다.\n","예를 들어, 좌표가 (12, 5)인 점 A는 x좌표와 y좌표가 모두 양수이므로 제1사분면에 속한다. 점 B는 x좌표가 음수이고 y좌표가 양수이므로 제2사분면에 속한다.\n","\n","<center>\n","<img src=\"https://onlinejudgeimages.s3-ap-northeast-1.amazonaws.com/problem/14681/1.png\" width=\"300\"/>\n","</center>\n","점의 좌표를 입력받아 그 점이 어느 사분면에 속하는지 알아내는 프로그램을 작성하시오. 단, x좌표와 y좌표는 모두 양수나 음수라고 가정한다.\n","\n"],"metadata":{"id":"qV1nsW_zZda8"}},{"cell_type":"code","source":["x = int(input())\n","y = int(input())\n","\n","if x > 0 and y > 0:\n","    print(f\"사분면: 1, 좌표: ({x}, {y})\")\n","elif x < 0 and y > 0:\n","    print(f\"사분면: 2, 좌표: ({x}, {y})\")\n","elif x < 0 and y < 0:\n","    print(f\"사분면: 3, 좌표: ({x}, {y})\")\n","elif x > 0 and y < 0:\n","    print(f\"사분면: 4, 좌표: ({x}, {y})\")"],"metadata":{"id":"YG35F0veZd0l","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901967664,"user_tz":-540,"elapsed":5344,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"d0b06e8f-ea58-41fd-9d77-7e7512362455"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["12\n","5\n","사분면: 1, 좌표: (12, 5)\n"]}]},{"cell_type":"markdown","source":["### 5.다음 코드의 결괏값은 무엇일까?\n","```python\n","a = \"Life is too short. you need python.\"\n","\n","if \"student\" in a:\n","    print(\"student\")\n","elif \"python\" in a and \"you\" not in a:\n","    print(\"python\")\n","elif \"shirt\" not in a:\n","    print(\"shirt\")\n","elif \"need\" in a:\n","    print(\"need\")\n","else:\n","    print(\"none\")\n","```"],"metadata":{"id":"lh3QTQetaNk-"}},{"cell_type":"code","source":["a = \"Life is too short. you need python.\"\n","\n","if \"student\" in a:\n","    print(\"student\")\n","elif \"python\" in a and \"you\" not in a:\n","    print(\"python\")\n","elif \"shirt\" not in a:\n","    print(\"shirt\")\n","elif \"need\" in a:\n","    print(\"need\")\n","else:\n","    print(\"none\")\n","# shirt"],"metadata":{"id":"iBEvsN2AbXqi","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901976539,"user_tz":-540,"elapsed":338,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"241396ff-e521-4e23-8445-be60a4286a03"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["shirt\n"]}]},{"cell_type":"markdown","source":["### 6.사용자로부터 정수를 입력받아 3의 배수이면 “python”을 출력하고 5의 배수이면 “program”을 출력하고 3의 배수이면서 5의 배수이면 “python program”을 출력하는 프로그램을 작성하시오."],"metadata":{"id":"bRYSgyHnbigS"}},{"cell_type":"code","source":["n = int(input())\n","\n","if n % 3 == 0 and n % 5 ==0:\n","    print(\"python program\")\n","elif n % 3 == 0:\n","    print(\"python\")\n","elif n % 5 == 0:\n","    print(\"program\")"],"metadata":{"id":"j-2SgGGtcIac","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901983184,"user_tz":-540,"elapsed":4097,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"e82c16fb-a0bf-4410-85a0-fd0e8ad905fc"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["15\n","python program\n"]}]},{"cell_type":"markdown","source":["### 7.다음 프로그램을 완성하시오.\n","\n","사용자로부터 하나의 문자를 입력받는다.\n","\n","입력 문자가 'R' 이나 'r'이면 \"Rectangle\"이라고 출력한다.\n","\n","'T'이거나 't'이면 \"Triangle\"이라고 출력한다.\n","\n","'C'이거나 'c'이면 \"Circle\"이라고 출력한다.\n","\n","그 외의 문자가 입력되면 \"Unknown\"이라고 출력한다."],"metadata":{"id":"s8nzdYvlcLkI"}},{"cell_type":"code","source":["char = input()\n","\n","if char == 'R' or char =='r':\n","    print(\"Rectangle\")\n","elif char == 'T' or char == 't':\n","    print(\"Triangle\")\n","elif char == 'C' or char == 'c':\n","    print(\"Circle\")\n","else:\n","    print(\"Unknown\")"],"metadata":{"id":"v4byLcGDcqu5","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901993171,"user_tz":-540,"elapsed":2185,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"880f29a3-44e9-404d-b8d4-073a04dac76e"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["c\n","Circle\n"]}]},{"cell_type":"markdown","source":["# [과제3](https://sweltering-azimuth-166.notion.site/3-69a9a6514ea342ff9e465fd77007528c)"],"metadata":{"id":"7BTXGT4ldA2p"}},{"cell_type":"markdown","source":["### 1.다음 빈칸을 채워서 실행 결과처럼 숫자를 하나하나 모두 출력해보시오.\n","```python\n","list_of_list = [\n","    [1, 2, 3],\n","    [4, 5, 6, 7],\n","    [8, 9]\n","]\n","\n","# 빈칸\n","```\n","실행결과\n","```\n","1\n","2\n","3\n","4\n","5\n","6\n","7\n","8\n","9\n","```\n"],"metadata":{"id":"s20yk7B7dCOy"}},{"cell_type":"code","source":["list_of_list = [\n","    [1, 2, 3],\n","    [4, 5, 6, 7],\n","    [8, 9]\n","]\n","\n","for list in list_of_list:\n","    for i in list:\n","        print(i)"],"metadata":{"id":"t8rnbAddeHZX","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679901998770,"user_tz":-540,"elapsed":2442,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"d4cf82e9-ca99-4482-dcb9-eb29ac681e72"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["1\n","2\n","3\n","4\n","5\n","6\n","7\n","8\n","9\n"]}]},{"cell_type":"markdown","source":["### 2.시험 점수가 60점 이상이면 합격이고 그렇지 않으면 불합격이다. 각 학생의 합격 또는 불합격 결과를 출력하시오. (조건문, 반복문 사용)\n","```python\n","marks = [90, 25, 67, 45, 80]\n","```\n","실행결과\n","```\n","1번 학생은 합격입니다.\n","2번 학생은 불합격입니다.\n","3번 학생은 합격입니다.\n","4번 학생은 불합격입니다.\n","5번 학생은 합격입니다.\n","```"],"metadata":{"id":"5G0suY38eIQM"}},{"cell_type":"code","source":["marks = [90, 25, 67, 45, 80]\n","\n","for student, score in enumerate(marks, start=1):\n","    if score >= 60:\n","        print(f\"{student}번 학생은 합격입니다.\")\n","    else:\n","        print(f\"{student}번 학생은 불합격입니다.\")"],"metadata":{"id":"zC_88_nQeWvJ","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679902003770,"user_tz":-540,"elapsed":315,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"28252de0-cb3b-4f41-ae31-a7a14d20f6ad"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["1번 학생은 합격입니다.\n","2번 학생은 불합격입니다.\n","3번 학생은 합격입니다.\n","4번 학생은 불합격입니다.\n","5번 학생은 합격입니다.\n"]}]},{"cell_type":"markdown","source":["### 3.1~100 사이에 있는 숫자 중 2진수로 변환했을 때 0이 하나만 포함된 숫자를 찾고, 그 숫자들의 합을 구하는 코드를 만들어보시오.\n","```python\n","output = [채울 코드]\n","\n","for i in [채울 코드]:\n","    print(\"{}: {}\".format(i, \"{:b}\".format(i)))\n","print(\"합계:\", sum(output))\n","```\n","실행결과\n","```\n","2: 10\n","5: 101\n","6: 110\n","(중략)\n","95: 1011111\n","합계: 539\n","```"],"metadata":{"id":"OLyUSMyXeZEb"}},{"cell_type":"code","source":["del sum # ← 아래 코드 sum에서 오류나면 이거 실행하고 하세요"],"metadata":{"id":"9paInCnVbzNw"},"execution_count":null,"outputs":[]},{"cell_type":"code","source":["output = [i for i in range(1, 101) if \"{:b}\".format(i).count('0') == 1]\n","for i in output:\n","    print(\"{}: {}\".format(i, \"{:b}\".format(i)))\n","print(\"합계:\", sum(output))"],"metadata":{"id":"OATOYK0SebGR","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1680329342532,"user_tz":-540,"elapsed":2,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"efa45442-82fb-4654-99a1-b44152130d8f"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["2: 10\n","5: 101\n","6: 110\n","11: 1011\n","13: 1101\n","14: 1110\n","23: 10111\n","27: 11011\n","29: 11101\n","30: 11110\n","47: 101111\n","55: 110111\n","59: 111011\n","61: 111101\n","62: 111110\n","95: 1011111\n","합계: 539\n"]}]},{"cell_type":"markdown","source":["### 4.다음 소스 코드를 완성하여 리스트 a에 들어있는 정수 중에서 홀수만 선택하여 3을 곱한 결과를 리스트 형태로 출력되게 만드시오(리스트 표현식 사용).\n","코드\n","```python\n","a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]\n","result = [                           ]\n","\n","print(result)\n","```\n","실행결과\n","```\n","[3, 9, 15, 21, 27]\n","```"],"metadata":{"id":"dGCO57aLfBPQ"}},{"cell_type":"code","source":["a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]\n","result = [num * 3 for num in a if num % 2 == 1]\n","\n","print(result)"],"metadata":{"id":"vkk6TDX8fRdS","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679902347876,"user_tz":-540,"elapsed":367,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"d45c2eec-d249-4c2e-de9f-16bce792e299"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["[3, 9, 15, 21, 27]\n"]}]},{"cell_type":"markdown","source":["### 5.다음 소스 코드를 완성하여 리스트 a에 들어있는 문자열 중에서 길이가 5인 것만 리스트 형태로 출력되게 만드시오(리스트 표현식 사용).\n","코드\n","```python\n","a = ['alpha', 'bravo', 'charlie', 'delta', 'echo', 'foxtrot', 'golf', 'hotel', 'india']\n","b = [                           ]\n","\n","print(b)\n","```\n","실행결과\n","```\n","['alpha', 'bravo', 'delta', 'hotel', 'india']\n","```\n"],"metadata":{"id":"5o8_wZ0ffYhY"}},{"cell_type":"code","source":["a = ['alpha', 'bravo', 'charlie', 'delta', 'echo', 'foxrot', 'golf', 'hotel', 'india']\n","b = [code for code in a if len(code) == 5]\n","\n","print(b)"],"metadata":{"id":"CWJ81rJRhd7m","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679902351332,"user_tz":-540,"elapsed":277,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"f8c28d5c-3e79-4e28-b3c5-90edb2641023"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["['alpha', 'bravo', 'delta', 'hotel', 'india']\n"]}]},{"cell_type":"markdown","source":["### 6.리스트의 0부터 i번째 요소까지의 합계인 리스트를 생성하는 프로그램을 완성하시오.\n","```\n","list1=[10, 20, 30, 40, 50]\n","```\n","```\n","list2=[10, 30, 60, 100, 150]\n","```"],"metadata":{"id":"7lPHRVvshl9D"}},{"cell_type":"code","source":["list1 = [10, 20, 30, 40, 50]\n","list2 = []\n","sum = 0\n","for num in list1:\n","    sum += num\n","    list2.append(sum)\n","print(list2)"],"metadata":{"id":"nCXwPs_Zh47L","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679902353905,"user_tz":-540,"elapsed":491,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"a2a19ef1-c68c-4c3f-c1ad-f81c02e0a80e"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["[10, 30, 60, 100, 150]\n"]}]},{"cell_type":"markdown","source":["### 7.2와 20 사이에 있는 모든 소수를 찾는 프로그램을 작성하시오."],"metadata":{"id":"XIw6-EpOh7O9"}},{"cell_type":"code","source":["for i in range(2, 21):\n","    for j in range(2, i):\n","        if i % j == 0:\n","            break\n","    else:\n","        print(i, end=' ')"],"metadata":{"id":"F7NIE2pnh6iS","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1680332429955,"user_tz":-540,"elapsed":4,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"c1da0ad7-c67e-476f-8a4d-b1828bdde2fb"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["2 3 5 7 11 13 17 19 "]}]},{"cell_type":"code","source":["# 아니면 이렇게\n","for i in range(2, 21):\n","    is_prime = True\n","    for j in range(2, i):\n","        if i % j == 0:\n","            is_prime = False\n","            break\n","    if is_prime:\n","        print(i, end=' ')"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"N8gldeqYo6JK","executionInfo":{"status":"ok","timestamp":1680332806487,"user_tz":-540,"elapsed":426,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"6dfc2032-810e-4c5a-a2a8-8b10fd6dc771"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["2 3 5 7 11 13 17 19 "]}]},{"cell_type":"markdown","source":["### 8.10개의 데이터 7, 5, 2, 8, 15, 17, 10, 4, 11가 저장된 리스트가 있다고 할 때, 짝수의 합을 구하는 프로그램을 작성하시오.\n","결과\n","```\n","24\n","```"],"metadata":{"id":"mokmiXbbh_HQ"}},{"cell_type":"code","source":["data = [7, 5, 2, 8, 15, 17, 10, 4, 11]\n","sum = 0\n","for i in data:\n","    if i % 2 == 0:\n","        sum += i\n","print(sum)"],"metadata":{"id":"eN5Q-UZ9iDFd","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1679902361189,"user_tz":-540,"elapsed":1,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"fe2cbdf3-c3c1-4bd2-c3eb-04145a49b6d7"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["24\n"]}]},{"cell_type":"markdown","source":["# [과제4](https://sweltering-azimuth-166.notion.site/4-535be6aef4c245489d1efcbd4fb49257)"],"metadata":{"id":"9PvjKyHBwkHT"}},{"cell_type":"markdown","source":["### 1.국어, 영어, 수학, 과학 네 과목의 평균 점수가 80점 이상이면 '합격', '불합격'을 출력하는 프로그램을 완성하시오.\n","\n","[조건]\n","* 과목 점수는 0점부터 100점까지만 입력받을 수 있다.\n","* 점수의 범위를 벗어나는 값이 있는 경우 '잘못된 점수'를 출력하고 합격, 불합격 여부는 출력하지 않는다.\n","\n","\n","|경우|1|2|3|\n","|:-:|---|---|---|\n","|입력|89 72 93 82|90 79 68 72|89 72 120 82|\n","|출력|합격|불합격|잘못된 점수|"],"metadata":{"id":"LVgkL_ZPwlfA"}},{"cell_type":"code","source":["a, b, c, d = map(int, input().split())\n","\n","if not (0 <= a <= 100) or not (0 <= b <= 100) or not (0 <= c <= 100) or not (0 <= d <= 100):\n","    print(\"잘못된 점수\")\n","elif (a + b + c + d) / 4 >= 80:\n","    print(\"합격\")\n","else:\n","    print(\"불합격\")"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"65h0MGXLw_3J","executionInfo":{"status":"ok","timestamp":1681090954791,"user_tz":-540,"elapsed":7895,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"38c226ae-ff28-4473-926a-90bdad76a23a"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["120 120 120 120\n","잘못된 점수\n"]}]},{"cell_type":"markdown","source":["###2.1부터 숫자를 하나씩 증가시키면서 더해나갈 때, 10000을 넘기는 숫자는 무엇인지 예시와 같이 출력하도록 코드를 완성하시오.\n","\n","<small>\n","1<br>\n","1+2=3<br>\n","1+2+3=6<br>\n","1+2+3+4=10<br>\n","1+2+3+4+..........+141=10011\n","</small>\n","\n","[출력]\n","```\n","141을 더할 때 10000을 넘으며 그 때의 값은 10011입니다.\n","```\n","\n","[코드]\n","```python\n","limit = 10000\n","i=1\n","\n","#완성\n","\n","print(\"{}을 더할 때 {}을 넘으며 그 때의 값은 {}입니다.\".format(i-1, limit, sum_value))\n","```"],"metadata":{"id":"gdmQ2JMCx2-H"}},{"cell_type":"code","source":["limit = 10000\n","i = 1\n","\n","sum_value = 0\n","while sum_value <= limit:\n","    sum_value += i\n","    i += 1\n","\n","print(\"{}을 더할 때 {}을 넘으며 그 때의 값은 {}입니다.\".format(i-1, limit, sum_value))"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"eEs69UHcyTI0","executionInfo":{"status":"ok","timestamp":1680788249040,"user_tz":-540,"elapsed":1016,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"93a7d302-6eaa-4fea-c15b-5264d8b52343"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["141을 더할 때 10000을 넘으며 그 때의 값은 10011입니다.\n"]}]},{"cell_type":"markdown","source":["### 3.반복문과 조건문을 이용하여 숫자 찾기 게임을 완성하시오.\n","\n","[조건]\n","* 먼저 컴퓨터가 1에서 100까지 중 임의의 숫자를 생성한다.\n","* 다음으로 사용자가 추측하는 숫자를 입력하면 컴퓨터가 생성한 임의의 숫자보다 큰지, 작은지를 계속 비교해 준다.\n","* 정답을 맞힐 때까지 계속하다가 맞히면 '정답입니다. 입력한 숫자는 n입니다.'를 출력한다.\n","\n","[출력 예시]\n","```\n","숫자를 맞혀 보세요.(1~100)\n","11\n","숫자가 작습니다.\n","12\n","숫자가 작습니다.\n","56\n","숫자가 작습니다.\n","89\n","숫자가 큽니다.\n","77\n","숫자가 큽니다.\n","60\n","숫자가 작습니다.\n","65\n","숫자가 작습니다.\n","68\n","숫자가 작습니다.\n","69\n","숫자가 작습니다.\n","70\n","정답입니다. 입력한 숫자는 70 입니다.\n","```\n","\n","[코드]\n","```python\n","import random # 난수 발생 함수 호출\n","\n","number=random.randint(1, 100) #1~100 사이 정수 난수 발생\n","\n","# 이하 완성\n","```"],"metadata":{"id":"sUGhRhcmyhWp"}},{"cell_type":"code","source":["import random\n","\n","number = random.randint(1, 100) # 1~100 사이 정수 난수 발생\n","\n","user = 0\n","print(\"숫자를 맞혀 보세요.(1~100)\")\n","while number != user:\n","    user = int(input())\n","    if user > number:\n","        print(\"숫자가 큽니다.\")\n","    elif user < number:\n","        print(\"숫자가 작습니다.\")\n","    else:\n","        print(f\"정답입니다. 입력한 숫자는 {user} 입니다.\")"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"2P8Jtf2Ny6jq","executionInfo":{"status":"ok","timestamp":1680788472946,"user_tz":-540,"elapsed":17627,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"91fd231a-cbb3-43e7-9a4c-69b3ede5ed14"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["숫자를 맞혀 보세요.(1~100)\n","50\n","숫자가 큽니다.\n","25\n","숫자가 작습니다.\n","37\n","숫자가 작습니다.\n","43\n","정답입니다. 입력한 숫자는 43 입니다.\n"]}]},{"cell_type":"markdown","source":["### 4.두 문자열의 알파벳 나열 순서는 다르지만 그 구성이 일치하면 두 단어는 아나그램이라고 합니다.\n","예를 들어 AbaAeCe 와 baeeACA 는 알파벳 나열 순서는 다르지만 그 구성을 살펴보면 A(2), a(1), b(1), C(1), e(2)로 알파벳과 그 개수가 모두 일치합니다. 즉, 어느 한 단어를 재배열하면 상대편 단어가 될 수 있는 것을 아나그램이라 합니다. 길이가 같은 두 개의 단어가 주어지면 두 단어가 아나그램인지 판별하는 프로그램을 작성하시오. 아나그램 판별 시 대소문자가 구분됩니다.\n","\n","[입력 설명]\n","* 첫 줄에 첫 번째 단어가 입력되고, 두 번째 줄에 두 번째 단어가 입력됩니다.\n","* 단어의 길이는 100을 넘지 않습니다.\n","\n","[출력 설명]\n","두 단어가 아나그램이면 “YES\"를 출력하고, 아니면 ”NO\"를 출력합니다.\n","\n","[출력 예시1]\n","```\n","a> AbaAeCe\n","b> baeeACA\n","YES\n","```\n","\n","[출력 예시2]\n","```\n","a> AbaAeCe\n","b> baeeACa\n","NO\n","```\n","\n","[코드]\n","```python\n","a=input(\"a>\")\n","b=input(\"b>\")\n","dicA = dict()\n","dicB = dict()\n","\n","#완성\n","\n","if dicA == dicB:\n","    print(\"YES\")\n","else:\n","    print(\"NO\")\n","```"],"metadata":{"id":"oLmj-8sZzO1Q"}},{"cell_type":"code","source":["a=input(\"a> \")\n","b=input(\"b> \")\n","dicA = dict()\n","dicB = dict()\n","\n","for i in a:\n","    if i in dicA:\n","        dicA[i] += 1\n","    else:\n","        dicA[i] = 1\n","for i in b:\n","    if i in dicB:\n","        dicB[i] += 1\n","    else:\n","        dicB[i] = 1\n","\n","if dicA == dicB:\n","    print(\"YES\")\n","else:\n","    print(\"NO\")"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"yRNbeSYmzuWr","executionInfo":{"status":"ok","timestamp":1681037594989,"user_tz":-540,"elapsed":26286,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"1981fa6a-debe-4b86-f769-93a5e02d1a85"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["a> AbaAeCe\n","b> baeeACa\n","NO\n"]}]},{"cell_type":"markdown","source":["### 5.for문을 사용하여 다음과 같이 숫자를 출력하라.\n","\n","[출력]\n","```\n","0 1 2 3 4\n","5 6 7 8 9\n","10 11 12 13 14\n","15 16 17 18 19\n","20 21 22 23 24\n","```"],"metadata":{"id":"VkSBXF4Vz5Lm"}},{"cell_type":"code","source":["for i in range(25):\n","    print(\"%d\" % (i), end=\" \")\n","    if (i + 1) % 5 == 0:\n","        print()"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"Bpz6VPE20CQN","executionInfo":{"status":"ok","timestamp":1680788701621,"user_tz":-540,"elapsed":3,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"42d590f0-5e0c-47e2-ba7e-26d9e662499a"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["0 1 2 3 4 \n","5 6 7 8 9 \n","10 11 12 13 14 \n","15 16 17 18 19 \n","20 21 22 23 24 \n"]}]},{"cell_type":"markdown","source":["### 6.현재 시급과 일할 시간을 입력하면 주급을 계산해주는 함수 weeklyPay(rate, hour)를 만들고 이 함수를 호출하여 주급을 출력하는 프로그램을 완성하시오.\n","단, 30시간이 넘는 근무 시간에 대해서는 시급의 1.5배를 지급한다.\n","\n","[출력]\n","```\n","시급 입력: 10000\n","근무 시간: 38\n","주급은 420000.0\n","```"],"metadata":{"id":"MEG7e8qh0Gxc"}},{"cell_type":"code","source":["def weeklyPay(rate, hour):\n","    if hour > 30:\n","        return rate * 30 + rate * 1.5 * (hour - 30)\n","    else:\n","        return rate * hour\n","\n","rate = int(input(\"시급 입력: \"))\n","hour = int(input(\"근무 시간: \"))\n","print(\"주급은\", weeklyPay(rate, hour))"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"6X0n39xl0UFX","executionInfo":{"status":"ok","timestamp":1680788774812,"user_tz":-540,"elapsed":5758,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"36b3e928-6dc4-4eec-94b5-63a1c8ec7275"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["시급 입력: 10000\n","근무 시간: 38\n","주급은 420000.0\n"]}]},{"cell_type":"markdown","source":["### 7.사용자로부터 두 개의 정수를 입력받아 최대 공약수를 찾는 함수를 작성하시오.\n","\n","[출력]\n","```\n","첫 번째 정수: 36\n","두 번째 정수: 12\n","공약수: 12\n","```"],"metadata":{"id":"nU2jGtIJ0XXQ"}},{"cell_type":"code","source":["def gcd(a, b):\n","    if a < b:\n","        a, b = b, a\n","    while b != 0:\n","        a, b = b, a % b\n","    return a\n","# 유클리드 호제법\n","\n","a = int(input(\"첫 번째 정수: \"))\n","b = int(input(\"두 번째 정수: \"))\n","print(\"공약수:\", gcd(a, b))"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"LhvwCh4E0dfR","executionInfo":{"status":"ok","timestamp":1681170545563,"user_tz":-540,"elapsed":3275,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"658c854a-f2d7-4c1f-83dc-5f39bac367fd"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["첫 번째 정수: 24\n","두 번째 정수: 36\n","공약수: 12\n"]}]},{"cell_type":"markdown","source":["[유클리드 호제법](https://namu.wiki/w/%EC%9C%A0%ED%81%B4%EB%A6%AC%EB%93%9C%20%ED%98%B8%EC%A0%9C%EB%B2%95):\n","\n","두 양의 정수 $a,b\\ (a>b)$에 대하여 $a=bq+r\\,\\left(0\\le r<b\\right)$ 혹은 $a\\equiv r\\left(\\text{mod}\\,b\\right)$ 이라 하면, $a,b$의 최대공약수는 $b,r$의 최대공약수와 같다. 즉, <big><center>$\\gcd\\left(a,\\ b\\right)=\\gcd\\left(b,\\ r\\right)$</center></big> $r=0$이라면, $a,b$의 최대공약수는 $b$가 된다."],"metadata":{"id":"DUmv5XATly7S"}},{"cell_type":"markdown","source":["### 8.주어진 정수가 소수인지를 검사하는 함수 testPrime(n)을 작성하고 이 함수를 호출하여 2부터 100 사이의 소수를 출력하시오."],"metadata":{"id":"35puvYse0gXS"}},{"cell_type":"code","source":["def testPrime(n):\n","    if n == 1:\n","        return False\n","    for i in range(2, n):\n","        if n % i == 0:\n","            return False\n","    return True\n","\n","for i in range(2, 100):\n","    if testPrime(i):\n","        print(i, end=\" \")"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"M4CpYPjx0i4n","executionInfo":{"status":"ok","timestamp":1680788830867,"user_tz":-540,"elapsed":434,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"293f6f64-3ef5-45cd-fb39-39d80c59ac62"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 "]}]},{"cell_type":"markdown","source":["### 9.출력과 같은 결과가 나오도록 (1), (2)를 완성하시오.\n","\n","[코드]\n","```python\n","def add_mul(choice, *args):\n","    if choice == \"add\":  #입력되는 모든 인수의 합을 구함.\n","\n","        # (1)\n","\n","    elif choice == \"mul\":  #입력되는 모든 인수의 곱을 구함.\n","\n","        # (2)\n","\n","    return result\n","\n","print(add_mul('add', 1,2,3,4,5))\n","print(add_mul('mul', 1,2,3,4,5))\n","```\n","\n","[출력]\n","```\n","15\n","120\n","```"],"metadata":{"id":"yNjPvJ9C0lb0"}},{"cell_type":"code","source":["def add_mul(choice, *args):\n","    if choice == \"add\":\n","        result = 0\n","        for i in args:\n","            result += i\n","    elif choice == \"mul\":\n","        result = 1\n","        for i in args:\n","            result *= i\n","    return result\n","print(add_mul('add', 1, 2, 3, 4, 5))\n","print(add_mul('mul', 1, 2, 3, 4, 5))"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"yNip3MMR06T0","executionInfo":{"status":"ok","timestamp":1680788926374,"user_tz":-540,"elapsed":389,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"7455e3df-a514-4f2c-eacc-cce6858e96fb"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["15\n","120\n"]}]},{"cell_type":"markdown","source":["### 10.숫자를 입력받아 천 단위(,)로 구분하여 출력하시오. (음수 제외)\n","\n","[조건]\n","* 입력 받은 숫자를 변수 num에 저장한다.\n","* 입력받은 값이 숫자인지 확인한다.\n","\n","[출력 예시1]\n","```\n","1234567\n","1,234,567\n","```\n","\n","[출력 예시2]\n","```\n","asdf\n","입력한 값은 숫자가 아닙니다.\n","```"],"metadata":{"id":"8vaw3ymQ1F2e"}},{"cell_type":"code","source":["num = input()\n","if num.isdigit():\n","    num = num[::-1]\n","    result = \"\"\n","    for i in range(len(num)):\n","        if i % 3 == 0 and i != 0:\n","            result += \",\"\n","        result += num[i]\n","    print(result[::-1])\n","else:\n","    print(\"입력한 값은 숫자가 아닙니다.\")"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"EGcAh75p1WWX","executionInfo":{"status":"ok","timestamp":1680789048994,"user_tz":-540,"elapsed":2358,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"ba398ad1-45da-4dfc-90ab-d99e66f41088"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["ㅁㄴㅇㄹ\n","입력한 값은 숫자가 아닙니다.\n"]}]},{"cell_type":"code","source":["#@title 간단하게 풀기\n","num = input()\n","try:\n","    num = int(num)\n","    print(\"{:,}\".format(num))\n","except:\n","    print(\"입력한 값은 숫자가 아닙니다.\")"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"cellView":"form","id":"nTBAMW2R1aEd","executionInfo":{"status":"ok","timestamp":1680789079719,"user_tz":-540,"elapsed":3923,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"41228e6c-891a-425d-efed-827a71d5bc2a"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["12346578\n","12,346,578\n"]}]},{"cell_type":"markdown","source":["### 11.파일 이름이 저장된 리스트에서 확장자를 제거하고 파일 이름만 화면에 출력하시오.\n","\n","[코드]\n","```python\n","file_list = ['test.py', 'example.ppt', 'hello.exe', 'nice.hwp']\n","# 코드 완성\n","```\n","\n","[출력]\n","```\n","test\n","example\n","hello\n","nice\n","```\n"],"metadata":{"id":"mlpKXv951i4y"}},{"cell_type":"code","source":["file_list = ['test.py', 'example.ppt', 'hello.exe', 'nice.hwp']\n","for file in file_list:\n","    print(file.split(\".\")[0])"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"KJ9ZTLdC1uF5","executionInfo":{"status":"ok","timestamp":1680789138277,"user_tz":-540,"elapsed":3,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"338af7bf-7de8-4048-e373-3ccda46c7aeb"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["test\n","example\n","hello\n","nice\n"]}]},{"cell_type":"markdown","source":["### 12.다음 소스 코드를 완성하여 확장자가 .jpg, .gif인 이미지 파일만 출력되게 만드시오.\n","\n","[조건]\n","* 람다 표현식 사용\n","* 확장자 검사할 때 문자열 메서드(함수) 활용\n","* 출력 결과는 리스트\n","\n","[코드]\n","```python\n","files=['pro.gif', 'tt.png', 'q1.jpg', 'melon.gif', 'q2.hwp', 'j3.ppt', 'table.xslx', 'spc.docx', 'gsa.jpg']\n","# 완성\n","```"],"metadata":{"id":"Hi_j0RDa1wNt"}},{"cell_type":"code","source":["files=['pro.gif', 'tt.png', 'q1.jpg', 'melon.gif', 'q2.hwp', 'j3.ppt', 'table.xslx', 'spc.docx', 'gsa.jpg']\n","is_jpgif = lambda x: x.split('.')[-1] == 'jpg' or x.split('.')[-1] == 'gif'\n","jpgif = list(filter(is_jpgif, files))\n","print(jpgif)"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"eJTBQZJe188d","executionInfo":{"status":"ok","timestamp":1681042063224,"user_tz":-540,"elapsed":539,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"9a7677b0-c31f-466b-8cd7-a8745d4ea45a"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["['pro.gif', 'q1.jpg', 'melon.gif', 'gsa.jpg']\n"]}]},{"cell_type":"markdown","source":["### 13.enumerate를 이용하여 결과처럼 출력되도록 코드를 완성하시오.\n","\n","[코드]\n","```python\n","flavor_list=['icekitkat', 'cheesecake', 'greentea', 'mintchoco']\n","# 완성\n","```\n","\n","[출력]\n","```\n","11: icekitkat\n","12: cheesecake\n","13: greentea\n","14: mintchoco\n","```"],"metadata":{"id":"fC8Z6qC82Gqw"}},{"cell_type":"code","source":["flavor_list=['icekitkat', 'cheesecake', 'greentea', 'mintchoco']\n","for index, flavor in enumerate(flavor_list, start=11):\n","    print(f\"{index}: {flavor}\")"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"qE17zWpG2VvA","executionInfo":{"status":"ok","timestamp":1680789300095,"user_tz":-540,"elapsed":2,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"4725ca2c-d2de-4da3-999a-8bab20655c01"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["11: icekitkat\n","12: cheesecake\n","13: greentea\n","14: mintchoco\n"]}]},{"cell_type":"markdown","source":["### 14.문자열이 저장된 'sentence.txt' 파일이 주어질 때(문자열은 한 줄로 저장된 상태), 'sentence.txt' 파일에서 소문자 's'가 포함된 단어를 각 줄에 출력하는 프로그램을 작성하시오.\n","단, 단어를 출력할 때는 등장한 순서대로 출력해야 하며, 콤마(,)와 점(.) 등 특수문자는 출력하지 않아야 한다.\n","\n","[sentence.txt]<br>\n","`Ever since the COVID-19 breakout, nations all around the world have taken action to ensure the safety of their citizens. International safety precautions include self-quarantining, and according to the New York Times, \"[a]t least 93 percent of the global population now lives in countries with coronavirus-related travel restrictions.\" Consequently, schools around the world have shut down and transitioned to online classrooms. The abruptness of this situation has caused much chaos for the 1.7 billion (UNESCO) - and increasing - students whose learning has become impaired. Eric Kim, a sophomore at Korea International School, is one among many students who were initially opposed to online schooling, as he thought it \"[lacked] the interpersonal interaction that real schools allow.\" Kim also thought that \"the screen time causes a drop in focus and increases distractions.\"`"],"metadata":{"id":"4gRjUavA2hcB"}},{"cell_type":"code","source":["!gdown https://drive.google.com/uc?id=1ihNAysZfNOYYhod0WnhexISLFd77XTn4\n","# ↑ sentence.txt 로드\n","# 무시하세요\n","\n","with open(\"sentence.txt\", \"r\") as file:\n","    text = file.read().strip()\n","    words = text.split()\n","    for word in words:\n","        word = ''.join([c for c in word if str.isalpha(c)])\n","        if 's' in word:\n","            print(word)"],"metadata":{"id":"fI1Ve8V12mOF","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1681169964255,"user_tz":-540,"elapsed":1342,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"abed7e48-aebe-4212-bd52-4fc526893185"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["Downloading...\n","From: https://drive.google.com/uc?id=1ihNAysZfNOYYhod0WnhexISLFd77XTn4\n","To: /content/sentence.txt\n","\r  0% 0.00/878 [00:00<?, ?B/s]\r100% 878/878 [00:00<00:00, 1.42MB/s]\n","since\n","nations\n","ensure\n","safety\n","citizens\n","safety\n","precautions\n","selfquarantining\n","Times\n","least\n","lives\n","countries\n","coronavirusrelated\n","restrictions\n","Consequently\n","schools\n","shut\n","transitioned\n","classrooms\n","abruptness\n","this\n","situation\n","has\n","caused\n","chaos\n","increasing\n","students\n","whose\n","has\n","sophomore\n","is\n","students\n","opposed\n","schooling\n","as\n","interpersonal\n","schools\n","also\n","screen\n","causes\n","focus\n","increases\n","distractions\n"]}]},{"cell_type":"markdown","source":["### 15.다음 과정에 따라 코드를 작성하시오.\n","* 영어 단어 10개가 줄 단위로 저장된 'words.txt' 파일을 생성한다.\n","* 10자 이상인 단어의 개수가 출력되게 한다."],"metadata":{"id":"B0zYCUBY2zX6"}},{"cell_type":"code","source":["import random\n","\n","words = []\n","for i in range(10):\n","    word = \"\"\n","    for j in range(random.randint(1, 20)):\n","        word += chr(random.randint(97, 122))\n","    words.append(word)\n","\n","# 정확한 조건이 없어 내맘대로함\n","# 랜덤길이(1~20), 랜덤문자 들어간 랜덤문자열로 단어만들어서 적음\n","\n","with open(\"words.txt\", \"w\") as file:\n","    for word in words:\n","        file.write(word + \"\\n\")\n","\n","with open(\"words.txt\", \"r\") as file:\n","    count = 0\n","    for line in file:\n","        words = line.strip().split()\n","        for word in words:\n","            if len(word) >= 10:\n","                count += 1\n","    print(count)"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"hk-dUTSt25wv","executionInfo":{"status":"ok","timestamp":1680789531490,"user_tz":-540,"elapsed":2,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"57bc992e-ceae-4e3f-cbcf-e9026e448348"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["6\n"]}]},{"cell_type":"code","source":["# 텍스트파일 확인\n","with open(\"words.txt\", \"r\") as file:\n","    for line in file:\n","        print(line)"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"6FC-TZsI25sw","executionInfo":{"status":"ok","timestamp":1680789534335,"user_tz":-540,"elapsed":2,"user":{"displayName":"박진재","userId":"13496824967263428254"}},"outputId":"39fa0ae5-d97f-47e0-bc71-2001bd950c5b"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["dxtktrbqjlaeamyv\n","\n","dvasilmehhxcpql\n","\n","y\n","\n","mtbaypkhivlcylue\n","\n","jrxuxx\n","\n","belbntp\n","\n","laokybgtkwoafiphm\n","\n","waqgtfzpjgmm\n","\n","ymk\n","\n","oceyteqaviged\n","\n"]}]}]}