fork download
copy 
  1. #include<stdio.h>
  2. #include<stdlib.h>
  3.  
  4. int main()
  5. {
  6. 	int i, j, k;
  7. 	int a, b;
  8. 	int** mat;
  9. 	int* p;
  10. 	k = 1;
  11. 	scanf("%d %d", &a, &b);
  12. 	mat = (int**)malloc(sizeof(int) * a);
  13. 	if (mat == NULL) {
  14. 		printf("ERROR_mat\n");
  15. 		return 0;
  16. 	}
  17. 	p = (int*)malloc(sizeof(int) * b);
  18. 	if (p == NULL) {
  19. 		printf("ERROR_p\n");
  20. 		return 0;
  21. 	}
  22. 	for (i = 0; i < a; i++) {
  23. 		for (j = 0; j < b; j++) {
  24. 			p[j] = k++;
  25. 		}
  26. 		mat[i] = p;
  27. 	}
  28. 	for (i = 0; i < a; i++) {
  29. 		for (j = 0; j < b; j++) {
  30. 			printf("%d ", mat[i][j]);
  31. 		}
  32. 		printf("\n");
  33. 	}
  34. 	free(mat);
  35. 	return 0;
  36. }
Success #stdin #stdout 0s 5532KB
comments (?)
stdin
copy 
2 3
stdout
copy 
4 5 6 
4 5 6
https://ideone.com/b1WgU0
language:
C (gcc 8.3)
created:
1 year ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!