Submission

Score: 100

User: Kidmaiok

Problemset: Market Kalgulator

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-05 11:27:58

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

int main(){
    int n, order, price;
    int total_items = 0;
    double total_price = 0;
    double real_price = 0;
    bool used_promotion = false;

    cin >> n;

    for(int i = 0; i < n; i++){
        cin >> order >> price;
        total_items += order;
        total_price += order * price;
    }

    if(total_items >= n * 2){
        real_price = total_price * 0.97;
        used_promotion = true;

        if(total_items > 14 && real_price > 25){
            real_price -= 10;
        }
    }
    else if(total_items <= 20 && total_price < 500){
        real_price = total_price + 600;
        used_promotion = true;
    }
    if(!used_promotion){
        real_price = total_price - ceil(n * 0.35);  // changed floor -> ceil
    }

    cout << (int)floor(real_price) << endl;
    return 0;
}