#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);
 
	//ここで2次元配列の動的確保をする
	mat = (int**)malloc(sizeof(int)*a);
	for(k=0;k<a;k++){
		mat[k] = (int*)malloc(sizeof(int)*b);
	}
 
	if(mat == NULL){
		printf("ERROR\n");
		return 0;
	}
 
	//ここで2次元配列に数値を代入する
 
	int y=1;
	for(i=0;i<a;i++){
		for(j=0;j<b;j++){
			mat[i][j]=y;
			y++;
		}
	}
    //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");
    }
 
    //さて，最後に忘れずにすることと言えば？
	free(mat);
 
    return 0;
}
 

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

MiAzCg==

2 3