• Source
    1. /* package whatever; // don't place package name! */
    2.  
    3. import java.util.*;
    4. import java.lang.*;
    5. import java.io.*;
    6.  
    7.  
    8. public class Main
    9. {
    10. public static void main (String[] args)
    11. {
    12. Scanner scanner = new Scanner (System.in);
    13.  
    14. int n = scanner.nextInt();
    15. int m = scanner.nextInt();
    16.  
    17. int [][] A = new int [1000] [1000];
    18.  
    19. for (int i = 1; i <= m; i++) {
    20.  
    21. int x, y;
    22. x = scanner.nextInt();
    23. y = scanner.nextInt();
    24. A[x][y] = 1;
    25. A[y][x] = 1;
    26. }
    27.  
    28. for (int i = 0; i < n; i++) {
    29. int c = 0;
    30. for (int j = 0; j < n; j++) {
    31. if (A[i][j] == 1) {
    32. c++;
    33. }
    34. }
    35. System.out.println(i + " " + c);
    36. }
    37. }
    38. }