#include <stdio.h>
#include <stdlib.h>
 
//必要があれば変数などを追加してもOKです
 
int main(){
    int i,j,k;
    int a,b;
    int **mat;
    scanf("%d %d",&a,&b);
 
	mat=(int **)malloc(sizeof(int*) * a);//ここで2次元配列の動的確保をする
    for(i=0;i<a;i++){
    	mat[i]=(int *)malloc(sizeof(int)*b);
    }
 
	for(i=0,k=1;i<a;i++){
		for(j=0;j<b;j++,k++){
			mat[i][j]=k;
		}
	}//ここで2次元配列に数値を代入する
 
 
    //以下の部分は表示の部分です
    //いじらなくてOK
    for(i=0;i<a;i++){
        for(j=0;j<b;j++){
            printf("%d ",mat[i][j]);
        }
        printf("\n");
    }
 
    for(i=0;i<a;i++){
    	free(mat[i]);
    }
    free(mat);//さて，最後に忘れずにすることと言えば？
 
 
    return 0;
}
 

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

IDQgMjUK

 4 25