fork download
copy 
  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4.  
  5. int main(){
  6.     int i,j,k;
  7.     int a,b;
  8.     int **mat;
  9.     scanf("%d %d",&a,&b);
  10.  
  11. 	mat=(int**)malloc(sizeof(int*)*a);
  12. 	if(mat==NULL){
  13. 		printf("ERROR\n");
  14. 		return 0;
  15. 	}
  16. 	for(i=0;i<a;i++){
  17. 		mat[i]=(int*)malloc(sizeof(int)*b);
  18. 		if(mat[i]==NULL){
  19. 			printf("ERROR\n");
  20. 			return 0;
  21. 		}
  22. 	}
  23.  
  24.  
  25. 	k=1;
  26. 	for(i=0;i<a;i++){
  27. 		for(j=0;j<b;j++)
  28. 		mat[i][j]=k++;
  29. 	}
  30.  
  31.  
  32.     for(i=0;i<a;i++){
  33.         for(j=0;j<b;j++){
  34.             printf("%d ",mat[i][j]);
  35.         }
  36.         printf("\n");
  37.     }
  38.  
  39.     for(i=0;i<a;i++)
  40.     free(mat[i]);
  41.     free(mat);
  42.  
  43.  
  44.     return 0;
  45. }
  46.  
Success #stdin #stdout 0s 5324KB
comments (?)
stdin
copy 
2 3
stdout
copy 
1 2 3 
4 5 6
https://ideone.com/p7HG2p
language:
C (gcc 8.3)
created:
1 day 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!