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답안 #968635

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
968635 2024-04-23T18:54:08 Z VMaksimoski008 Trol (COCI19_trol) C++14
20 / 50
 1 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main() {
    int q;
    cin >> q;

    auto Q = [&](int p) {
        if(!p) return 0ll;
        int full = p / 9;
        ll ans = full * 45;
        for(int i=full*9+1; i<=p; i++) ans += i % 9;
        return ans;
    };

    while(q--) {
        int l, r;
        cin >> l >> r;
        cout << Q(r) - Q(l-1) << '\n';
    }

    return 0;
}

Subtask #1
20.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Incorrect 0 ms 344 KB Output isn't correct
5 Incorrect 1 ms 348 KB Output isn't correct