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답안 #976076

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
976076 2024-05-06T07:05:57 Z vjudge1 Trol (COCI19_trol) C++17
0 / 50
 1 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;
#define ios ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define ll long long

// 1-9=45
// 1-18=90

ll l,r;
ll solve(ll n){
    ll count,x,idx,sum=0;
    idx=n%9+1;
    while(idx--)sum+=idx;
    
    count=n/9;
    x= 45*count+sum;
    return x;   
}

int main(){
    ios
    ll t; cin >> t;
    while (t--){
        cin >> l >> r;
        cout << solve(r)-solve(l-1);
    }


    return 0;
}

Subtask #1
0 / 50.0

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