diff --git "a/Ukj0ng/202601/05 BOJ G2 \354\230\244\355\203\200.md" "b/Ukj0ng/202601/05 BOJ G2 \354\230\244\355\203\200.md" new file mode 100644 index 00000000..40a2d6f0 --- /dev/null +++ "b/Ukj0ng/202601/05 BOJ G2 \354\230\244\355\203\200.md" @@ -0,0 +1,63 @@ +``` +import java.io.*; + +public class Main { + private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); + private static boolean flag; + private static int[] sum; + private static char[] input; + + public static void main(String[] args) throws IOException { + init(); + int answer = solve(flag); + + bw.write(answer + "\n"); + bw.flush(); + bw.close(); + br.close(); + } + + private static void init() throws IOException { + input = br.readLine().toCharArray(); + sum = new int[input.length+1]; + int a = 0; + int b = 0; + + for (int i = 0; i < input.length; i++) { + if (input[i] == '(') a++; + else b++; + } + + // true -> '('가 더 많은 경우 + if (a > b) flag = true; + // false -> ')'가 더 많은 경우 + } + + private static int solve(boolean flag) { + int result = 0; + + if (flag) { + for (int i = 1; i <= input.length; i++) { + if (input[input.length-i] == ')') sum[i] = sum[i-1]+1; + else sum[i] = sum[i-1]-1; + if (sum[i] == -1) { + result = (i+1)/2; + break; + } + } + } else { + for (int i = 1; i <= input.length; i++) { + if (input[i-1] == '(') sum[i] = sum[i-1]+1; + else sum[i] = sum[i-1]-1; + if (sum[i] == -1) { + result = (i+1)/2; + break; + } + } + } + + return result; + } +} +```