HCL Interview program

Author: PTHARRISH

Interview Questions/text_counter.py

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+def frequent_count_text(text):
+    dict_count = {}
+    for i in text.split():
+        if i.lower() in dict_count:
+            dict_count[i.lower()] += 1
+        else:
+            dict_count[i.lower()] = 1
+    return dict_count
+
+# Example usage:
+input_text = "This is a sample text with several words this is a test text"
+result = frequent_count_text(input_text)
+print(result)

Interview Questions/text_letter_counter.py

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+# Repeated words and letter counter and display top num letters and word their counts and remove punctuation
+
+
+def frequent_count_text(text, num=3):
+    word_count = {}
+    text_count = {}
+    for i in text.split():
+        if i.lower() in word_count:
+            word_count[i.lower()] += 1
+        else:
+            word_count[i.lower()] = 1
+        for j in i:
+            if j.lower() in text_count:
+                text_count[j.lower()] += 1
+            else:
+                text_count[j.lower()] = 1
+    top_words = sorted(word_count.items(), key=lambda kv: (-kv[1], kv[0]))[:num]
+    top_letters = sorted(text_count.items(), key=lambda kv: (-kv[1], kv[0]))[:num]
+    # 4) Format outputs and return (letters first, words second)
+    letter_lines = [f"Top {num} letter:"]
+    letter_lines += [f"{ch}: {cnt}" for ch, cnt in top_letters]
+
+    word_lines = [f"Top {num} word:
+                  "]
+    word_lines += [f"{w}: {cnt}" for w, cnt in top_words]
+
+    letter_output = "\n".join(letter_lines)
+    word_output = "\n".join(word_lines)
+    return f"{letter_output}\n\n{word_output}"
+
+
+# Example usage:
+input_text = "This is a sample text with several words this is a test text"
+result = frequent_count_text(input_text, 3)
+print(result)

Interview Questions/vowels.py

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+class Vowels:
+    def __init__(self, data):
+        self.data = data
+        self.vowels = ["a", "e", "i", "o", "u"]
+
+    def filter_non_vowels(self):
+        result = "".join(
+            [char for char in self.data if char.lower() not in self.vowels]
+        )
+        return result
+
+    def filter_vowels(self):
+        result = "".join([char for char in self.data if char.lower() in self.vowels])
+        return result
+
+
+# Example usage:
+input_string = "Hello World"
+vowel_filter = Vowels(input_string)
+print("String after removing vowels:", vowel_filter.filter_non_vowels())
+print("String with only vowels:", vowel_filter.filter_vowels())

hackerrank/swapcase.py

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+# Swap case of each character in the string
+def swap_case(s):
+    data = []
+    for i in s:
+        if "a" <= i <= "z":
+            data.append(chr(ord(i) - 32))
+        elif "A" <= i <= "Z":
+            data.append(chr(ord(i) + 32))
+        else:
+            data.append(i)
+    return "".join(data)