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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. //必要があれば変数などを追加してもOKです
  5.  
  6. int main(){
  7.     int i,j,k;
  8.     int a,b;
  9.     int **mat;
  10.     scanf("%d %d",&a,&b);
  11.  
  12.     mat = (int **)malloc(sizeof(int *) * a);
  13.  
  14.  
  15.     for(i = 0; i < a; i++){
  16.         mat[i] = (int *)malloc(sizeof(int) * b);
  17.     }
  18.  
  19.  
  20.  
  21.     for(i = 0; i < a; i++){
  22.         for(j = 0; j < b; j++){
  23.             mat[i][j] = k;
  24.             k++; 
  25.         }
  26.     }
  27.  
  28.  
  29.  
  30.     for(i=0;i<a;i++){
  31.         for(j=0;j<b;j++){
  32.             printf("%d ",mat[i][j]);
  33.         }
  34.         printf("\n");
  35.     }
  36.  
  37.     for(i = 0; i < a; i++){
  38.         free(mat[i]);
  39.     }
  40.  
  41.     free(mat);
  42.  
  43.     return 0;
  44. }
Success #stdin #stdout 0s 5328KB
comments (?)
stdin 
2 3
stdout 
0 1 2 
3 4 5
https://ideone.com/pK5Gff
language:
C (gcc 8.3)
created:
8 days ago
visibility:
public

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