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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.     if ((mat = (int **)malloc(sizeof(int *)*a)) == NULL){
  11.     	printf("ERROR\n");
  12.     	return 0;
  13.     }
  14.  
  15.     for(i=0;i<b;i++) {
  16.     	mat[i] = (int *)malloc(sizeof(int)*b);
  17.     	if(mat == NULL){
  18.     		printf("ERROR\n");
  19.     		return 0;
  20.     	}
  21.     }
  22.  
  23.     k = 1;
  24. 	for(i=0;i<a;i++){
  25.         for(j=0;j<b;j++){
  26.             mat[i][j] = k;
  27.             k += 1;
  28.         }
  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.     }
  42.     free(mat);
  43.  
  44.  
  45.     return 0;
  46. }
  47.  
Success #stdin #stdout 0s 5340KB
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https://ideone.com/qBNsf7
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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