Submission

Score: 100

User: spiwips

Problemset: จำนวนเฉพาะก่อนหน้า

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-08 14:37:27

#include<stdio.h>
#include<math.h>
int main(){
	int i = 0,num,ansList[5];
	scanf("%d",&num);
	num--;
	while(i<5){
		int j = 2;
		int prime = 1;
		while(j<=sqrt(num)){
			if(num%j==0){
				prime = 0;
				break;			
			}
			j++;
		}
		if(prime == 1){
			ansList[4-i] = num;
			i++;
		}
		num--;
	}
	for(int i = 0; i<5;i++){
		printf("%d ",ansList[i]);
	}
}