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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.  
  9.     scanf("%d %d", &a, &b);
  10.  
  11.     mat = (int **)malloc(a * sizeof(int *)); 
  12.     for (i = 0; i < a; i++) {
  13.         mat[i] = (int *)malloc(b * sizeof(int)); 
  14.     }
  15.  
  16.     k = 1; 
  17.     for (i = 0; i < a; i++) {
  18.         for (j = 0; j < b; j++) {
  19.             mat[i][j] = k++; 
  20.         }
  21.     }
  22.  
  23.     for (i = 0; i < a; i++) {
  24.         for (j = 0; j < b; j++) {
  25.             printf("%d ", mat[i][j]);
  26.         }
  27.         printf("\n");
  28.     }
  29.  
  30.     for (i = 0; i < a; i++) {
  31.         free(mat[i]);
  32.     }
  33.     free(mat);
  34.  
  35.     return 0;
  36. }
Success #stdin #stdout 0s 5284KB
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stdin
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stdout
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4 5 6 
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https://ideone.com/5bXjzb
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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