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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int comp(const void *a, const void *b){
  5. 	return *(int *)a - *(int *)b;
  6. }
  7.  
  8. int main(void){
  9.     int A[5][2] = {{3, 4}, {1, 2}, {5, 6}, {9, 10}, {7, 8}};
  10.     int B[5][2] = {{3, 4}, {1, 2}, {5, 6}, {9, 10}, {7, 8}};
  11.     int *p = &A[0][0];
  12.     int *q = &B[0][1];
  13.     qsort(p, 5, sizeof(int) * 2, comp);
  14.     qsort(q, 5, sizeof(int) * 2, comp);
  15.     int i;
  16.     for(i = 0 ; i < 5; i++){
  17.     	printf("(%d, %d) ", A[i][0], A[i][1]);
  18. 	}
  19. 	printf("\n");
  20. 	for(i = 0 ; i < 5; i++){
  21.     	printf("(%d, %d) ", B[i][0], B[i][1]);
  22. 	}
  23. 	printf("\n");
  24. 	system("pause");
  25. 	return 0;
  26. }
Success #stdin #stdout #stderr 0s 9432KB
comments (?)
stdin 
Standard input is empty
stdout 
(1, 2) (3, 4) (5, 6) (7, 8) (9, 10) 
(3, 2) (5, 4) (1, 6) (9, 8) (0, 10)
stderr 
sh: 1: pause: not found
https://ideone.com/RRbwEH
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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