#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);
 	if(mat == NULL){
 		printf("ERROR\n");
 		return 0;
	}
	for (i = 0; i < a; i++) {
		mat[i] = (int*)malloc(sizeof(int)*b);
 		if(mat[i] == NULL){
 			printf("ERROR\n");
 			return 0;
 		}
	}
    k = 1;
	//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++;
		}
	}
 
    //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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

MiAzCg==

2 3