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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main(){
  5.     int n, m, i, **a;
  6.     scanf("%d %d", &n, &m);
  7.     a = (int **)malloc(sizeof(int*)*n);
  8.     for(i=0; i<n; i++) {
  9.     	a[i] = (int *)malloc(sizeof(int)*m);
  10.     }
  11.     for(i=0; i<n; i++) {
  12.     	for(int j=0; j<m; j++) {
  13.     		a[i][j] = i*m+j;
  14.     		printf("%3d", a[i][j]);
  15.     	}
  16. 		printf("\n");
  17.     }
  18.     for(i=0; i<n; i++) {
  19.     	free(a[i]);
  20.     }
  21.     free(a);
  22.     return 0;
  23. }
  24.  
Success #stdin #stdout 0s 5280KB
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stdin
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4 8
stdout
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  0  1  2  3  4  5  6  7
  8  9 10 11 12 13 14 15
 16 17 18 19 20 21 22 23
 24 25 26 27 28 29 30 31
https://ideone.com/4Nqzpy
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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