[백준] 9372 상근이의 여행

www.acmicpc.net/problem/9372

9372번: 상근이의 여행

2020-12-05

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import java.util.Scanner;
 
public class Main9372 {
    public static int N, M;
 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int test = sc.nextInt();
        for(int ts = 1; ts <= test; ts++) {
            N = sc.nextInt();
            M = sc.nextInt();
            for(int i = 0; i < M; i++) {
                int a = sc.nextInt()-1;
                int b = sc.nextInt()-1;
            }
            System.out.println(N-1);
        }
    }
}