Submission

Score: 30

User: Folk_DIWA

Problemset: ผลรวมตัวเลข

Language: cpp

Time: 0.002 second

Submitted On: 2026-10-12 20:27:27

#include <bits/stdc++.h>
using namespace std;

using ll = long long;

int main(){
    cin.tie(0)->sync_with_stdio(0);

    int n,m; cin >> n >> m;
    
    int sum = 0;
    for(int i=n; i<=m; i++){

        if(i%2 == 0 and i%3 == 0) sum -= i;
        if(i%2 == 0) sum += i;
        if(i%3 == 0) sum += i;

    }
    
    cout << sum;

    return 0;
}