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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4.  
  5. int main(){
  6.     int i,j,k=1;
  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.  
  17. 	for(i=0;i<a;i++){
  18. 		mat[i]=(int*)malloc(sizeof(int)*b);
  19. 		if(mat[i]==NULL){
  20. 			printf("ERROR\n");
  21. 			return 0;
  22. 		}
  23. 	}
  24.  
  25.     for(i=0;i<a;i++){
  26.     	for(j=0;j<b;j++){
  27.     		mat[i][j]=k++;
  28.     	}
  29.     }
  30.  
  31.     for(i=0;i<a;i++){
  32.         for(j=0;j<b;j++){
  33.             printf("%d ",mat[i][j]);
  34.         }
  35.         printf("\n");
  36.     }
  37.  
  38.     for(i=0;i<a;i++){
  39.     	free(mat[i]);
  40.     }
  41.     free(mat);
  42.  
  43.     return 0;
  44. }
  45.  
Success #stdin #stdout 0s 5280KB
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https://ideone.com/cfjU3K
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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