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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main(){
  5.     int i,j,k;
  6.     int a,b;
  7.     int **mat;
  8.     scanf("%d %d",&a,&b);
  9.  
  10.     mat = (int**)malloc(sizeof(int)*a);
  11.     if(mat == NULL){
  12.     	printf("error\n");
  13.     	return 0;
  14.     }
  15.     for (i = 0; i < a; i++){
  16. 		mat[i] = (int**)malloc(sizeof(int*)*b);
  17.  		if(mat[i] == NULL){ printf("ERROR\n");  
  18.  		return 0; 
  19.  	}
  20.     }
  21.     k=1;
  22. 	for (i = 0; i < a; i++) {
  23. 		for (j = 0; j < b; j++) {
  24. 			mat[i][j] = k++;
  25. 		}
  26. 	}
  27.     for(i=0;i<a;i++){
  28.         for(j=0;j<b;j++){
  29.             printf("%d ",mat[i][j]);
  30.         }
  31.         printf("\n");
  32.     }
  33. 	for(i=0;i<a;i++){
  34. 		free(mat[i]);
  35. 	}
  36. 	free(mat);
  37.     return 0;
  38. }
  39.  
  40.  
Success #stdin #stdout 0s 5324KB
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https://ideone.com/t7vC1v
language:
C (gcc 8.3)
created:
11 hours ago
visibility:
public

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