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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.     for(i=0;i<a;i++){
  15.     	mat[i]=(int *)malloc(sizeof(int)*b);
  16. 	}
  17.  
  18. 	k=1;
  19. 	for(i=0;i<a;i++){
  20.     	for(j=0;j<b;j++){
  21.     	    mat[i][j] = k;
  22.     	    k++;
  23.     	}
  24. 	}
  25.  
  26.  
  27.     for(i=0;i<a;i++){
  28.         for(j=0;j<b;j++){
  29.             printf("%d ",mat[i][j]);
  30.         }
  31.         printf("\n");
  32.     }
  33.  
  34. 	free(mat);
  35.  
  36.     return 0;
  37. }
Success #stdin #stdout 0s 5348KB
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stdin
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stdout
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https://ideone.com/Qrj6Zw
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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