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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. 	if(mat==NULL){
  14. 		printf("ERROR\n");
  15. 		return 0;
  16. 	}
  17. 	for(i=0;i<a;i++){
  18. 		mat[i]=(int*)malloc(sizeof(int)*b);
  19. 	    if(mat[i]==NULL){
  20. 	    	printf("ERROR\n");
  21. 	    	return 0;
  22. 	    }
  23. 	}
  24. 	for(i=0;i<a;i++){
  25. 		for(j=0;j<b;j++){
  26. 			mat[i][j]=k++;
  27. 		}
  28. 	}
  29.  
  30.  
  31.     //以下の部分は表示の部分です
  32.     //いじらなくてOK
  33.     for(i=0;i<a;i++){
  34.         for(j=0;j<b;j++){
  35.             printf("%d ",mat[i][j]);
  36.         }
  37.         printf("\n");
  38.     }
  39.  
  40.     for(i=0;i<a;i++){
  41.     	free(mat[i]);
  42.     }
  43.  
  44.  
  45.     return 0;
  46. }
  47.  
Success #stdin #stdout 0s 5280KB
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https://ideone.com/f9V5ZI
language:
C (gcc 8.3)
created:
17 days ago
visibility:
public

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