[이것이 코딩테스트다] 3. 숫자 카드 게임 Java

package ThisCodingTest;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.StringTokenizer;

// p.96
public class CT3 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        int n = Integer.parseInt(st.nextToken());
        int m = Integer.parseInt(st.nextToken());
        int[][] arr = new int[n][m];
        int answer =0;

        for (int i=0; i<n; i++) {
            int min = Integer.MAX_VALUE;
            st = new StringTokenizer(br.readLine());
            for (int j=0; j<m; j++) {
                arr[i][j] = Integer.parseInt(st.nextToken());
                int minVal = Math.min(min, arr[i][j]);
                min = Math.min(minVal, arr[i][j]);
            }
            answer = Math.max(min, answer);
        }

        System.out.println(answer);
    }
}