Submission

Score: 0

User: yippie

Problemset: ผลรวมตัวเลข

Language: c

Time: 0.003 second

Submitted On: 2026-07-20 10:42:40

#include<stdio.h>
int main()
{
    int num=1,sum=0,bef=0,n;
    scanf("%d",&n);
    for(int i=0; i<n-1; i++){
        sum = num+bef;
        bef = num;
        num = sum;
    }
    printf("%d", sum);
}