1z1WKB - Online Java Compiler & Debugging Tool

import java.util.*;
public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int n =sc.nextInt();
		int m = sc.nextInt();
		int [][]b = new int[n+1][n+1];


		for(int i = 1;i<=m;i++){
			int x = sc.nextInt();
			int y = sc.nextInt();
			b[x][y]=1;
			b[y][x]=1;


		}
		for(int i=1;i<=n;i++){
			int count =0;
			for(int j=1;j<=n;j++){


			if(b[i][j]==1){
				count++;
			}


			}
			System.out.println(i +" " + count);

	}
}
}