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답안 #974699

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
974699 2024-05-03T16:13:34 Z vjudge1 Trol (COCI19_trol) C++14
10 / 50
 1 ms 348 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;

ll q;
ll pref[30], arr[30];

ll get_range(ll a, ll b){
    ll l = (a - 1) % 9 + 1;
    ll r = (b - 1) % 9 + 1;

    return pref[r] - pref[l-1] + 45 * ((b - a) / 9); 
}


int main(){
    cin >> q;

    pref[0] = 0; 
    for (int i = 0; i < 30; i++){
        arr[i] = (i - 1) % 9 + 1; 
        pref[i] = arr[i] +  pref[i-1];
    }

    for (int i = 0; i < q; i++)
    {
        ll l,r;
        cin >> l >> r;
        cout << get_range(l,r) << "\n";
    }
}

Subtask #1
10.0 / 50.0

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