#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 = 1;
    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
    if((mat = (int**)malloc(sizeof(int *) *a)) == NULL)
    {
        printf("ERROR\n");
        return 0;
    }
    for(i=0; i<a; i++)
    {
        if((mat[i] = (int *)malloc(sizeof(int) *b)) == NULL)
        {
        printf("ERROR\n");
        return 0;
        }
    }
 
	//ここで2次元配列に数値を代入する
	for(i=0; i<a; i++)
	{
	    for(j=0; j<b; j++)
	    {
	        mat[i][j] = k;
	        k++;
	    }
	    printf("\n");
	}
 
    //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？
    for(i=0; i<a; i++)
    {
        free(mat[i]);
    }
 
    free(mat);
 
    return 0;
}

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

MiAz

2 3