Submission

Score: 90

User: I_am_me

Problemset: จำนวนเฉพาะก่อนหน้า

Language: c

Time: 1.046 second

Submitted On: 2025-09-27 15:55:25

#include <stdio.h>
#include <math.h>

int main() {
    int num,counti=0,countj,arr[5];
    scanf("%d",&num) ;
    for(int i = num-1;i>1;i--) {
        countj = 0;
        for(int j = i-1;j>1;j--) {
            if (i%j == 0) countj+=1 ;
        }
        if(countj == 0) {
            arr[4-counti] = i ;
            counti+=1;
        }
        if(counti == 5) break;
    }
    for(int i = 0;i<5;i++) printf("%d ",arr[i]) ;
}