Submission

Score: 80

User: winkawin2552

Problemset: จำนวนเฉพาะ (2560)

Language: c

Time: 0.003 second

Submitted On: 2025-10-09 21:55:49

#include <stdio.h>

int is_prime(int num){
    for(int i =2; i*i <=num; i++){
        if(num%i==0) return 0;
    }return 1;
}

int main(){
    int n;
    scanf("%d", &n);
    for(int i = 2; i<= n; i++){
        is_prime(i) ? printf("%d\n", i) : 0;
    }
    return 0;
}