oj.uz

답안 #936791

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
936791 2024-03-02T17:49:46 Z Faissel Trol (COCI19_trol) C++17
30 / 50
 0 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int q;cin >> q;
    while(q--){
        ll l,r;cin >> l >> r;
        int y=l%9;
        if(y == 0)y = 9;
        int u= (9-y) + 1;
        ll sum =0;
        for(int i=y;i<=9;i++){
            sum += i;
        }
        sum += 45 * ((((r-l) + 1) - u) / 9);
        y = r % 9;
        for(int i= 1;i<=y;i++)sum+=i;
        cout << sum << endl;
    }
    return 0;
}

Subtask #1
30.0 / 50.0

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