#include<stdio.h>
 
int main(){
        int x;
        int kaizyo=1;
 
 
        printf("整数を入力して下さい：");
        scanf("%d",&x);
 
        if(x<=0){
                printf("値が不適当です。");
        }else{
		//条件が違う
                while(x>1){
                        kaizyo=kaizyo*x;
                        x=x-1;
                }
                printf("%dの階乗は%dです。",x,kaizyo);
        }
}

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MTA=

10