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

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