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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.     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"); return 0; }
  18.     }
  19.  
  20.     for(i=0;i<a;i++){
  21.     	for(j=0;j<b;j++){
  22.     		mat[i][j]=k++;
  23.     	}
  24.     }
  25.  
  26.     for(i=0;i<a;i++){
  27.         for(j=0;j<b;j++){
  28.             printf("%d ",mat[i][j]);
  29.         }
  30.         printf("\n");
  31.     }
  32.  free(mat);
  33.     return 0;
  34. }
  35.  
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/1FFU0H
language:
C (gcc 8.3)
created:
6 hours ago
visibility:
public

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