[BOJ] 20365 블로그 2 (S3)

Author: abcxj123

정건우/10주차/260303.java

@@ -0,0 +1,32 @@
+//https://www.acmicpc.net/problem/20365
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+public class BOJ_S3_20365_블로그2 {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        int N = Integer.parseInt(br.readLine());
+        String str = br.readLine();
+
+        int red = 0;
+        int blue = 0;
+        char past = ' ';
+
+        for (int i = 0; i < N; i++) {
+            char c = str.charAt(i);
+
+            if(c != past) {
+                if(c == 'R') red++;
+                else blue++;
+
+                past = c;
+            }
+        }
+
+        if(red == 0 || blue == 0) System.out.println(Math.max(red, blue));
+        else System.out.println(Math.min(red, blue)+1);
+
+    }
+}