CT_337

BOJ/Java/src/S4/Boj_1969_DNA.java

@@ -0,0 +1,63 @@
+package S4;
+
+import java.io.*;
+import java.util.StringTokenizer;
+
+public class Boj_1969_DNA {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+        StringBuilder sb = new StringBuilder();
+        StringTokenizer st = new StringTokenizer(br.readLine());
+
+        int N = Integer.parseInt(st.nextToken());
+        int M = Integer.parseInt(st.nextToken());
+        char[][] chars = new char[N][M];
+        char[] charset = {'A', 'C', 'G', 'T'};
+
+        for (int i = 0; i < N; i++) {
+            chars[i] = br.readLine().toCharArray();
+        }
+
+        int sum = 0;
+
+        for (int i = 0; i < M; i++) {
+            int[] cnt = new int[4];
+            for (int j = 0; j < N; j++) {
+                switch (chars[j][i]) {
+                    case 'A':
+                        cnt[0]++;
+                        break;
+                    case 'C':
+                        cnt[1]++;
+                        break;
+                    case 'G':
+                        cnt[2]++;
+                        break;
+                    case 'T':
+                        cnt[3]++;
+                        break;
+                }
+            }
+
+            int max = -1;
+            int idx = -1;
+
+            for (int j = 0; j < 4; j++) {
+                if (cnt[j] > max) {
+                    max = cnt[j];
+                    idx = j;
+                }
+            }
+
+            sb.append(charset[idx]);
+            sum += N - max;
+        }
+
+        sb.append('\n').append(sum);
+
+        bw.write(sb.toString());
+        bw.flush();
+    }
+
+}