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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. 	}
  16. 	for(i=0;i<a;i++){
  17. 		mat[i]=(int*)malloc(sizeof(int)*b);
  18. 		if(mat[i]==NULL){
  19. 			printf("ERROR\n");
  20. 		}
  21. 	}
  22.  
  23.     k=1;
  24.  
  25. 	for(i=0;i<a;i++){
  26. 		for(j=0;j<b;j++){
  27. 			mat[i][j]=k++;
  28. 		}
  29. 	}
  30.  
  31.  
  32.     for(i=0;i<a;i++){
  33.         for(j=0;j<b;j++){
  34.             printf("%d ",mat[i][j]);
  35.         }
  36.         printf("\n");
  37.     }
  38.  
  39. 	for(i=0;i<a;i++){
  40. 		free(mat[i]);
  41. 	}
  42.  
  43. 	free(mat);
  44.     return 0;
  45. }
  46.  
Success #stdin #stdout 0s 5280KB
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https://ideone.com/vj2cJz
language:
C (gcc 8.3)
created:
12 days ago
visibility:
public

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