Submission

[TSSSSSSSS]

Score: 0

User: Nathlol2

Problemset: ขนมของเซ้น143 (v.ง่าย)

Language: c

Time: 1.091 second

Submitted On: 2024-09-27 20:55:10

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

int plus(int n){
    return(n * (n + 1)) / 2;
}

int main(){
    int n;
    scanf("%d", &n);
    int a = plus(n);
    int b = n / 2;
    int mn = 2147483647;
    for(int i = b;b<=n;i++){
        if(a - plus(i) < mn){
            mn = i;
        }
    }
    printf("%d", a - plus(mn));
}