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답안 #975439

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
975439 2024-05-05T07:38:40 Z vjudge1 Trol (COCI19_trol) C++17
50 / 50
 1 ms 348 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long
#define Foxfur ios_base::sync_with_stdio(0);cin.tie(NULL);

int32_t main()
{
Foxfur

    int q; cin >> q;

    while(q--)
    {
        int l,r; cin >> l >> r;

        int l1 = ((l-1)/9)*45;
        int sisa = (l-1)%9;
        for(int i=1; i<=sisa; i++)
        {
            l1 += i;
        }

        int r1 = (r/9)*45;
        sisa = r%9;
        for(int i=1; i<=sisa; i++)
        {
            r1 += i;
        }

        cout << r1-l1 << endl;;
    }
}

Subtask #1
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct