oj.uz

답안 #465905

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
465905 2021-08-17T09:42:25 Z JasperL Trol (COCI19_trol) C++14
50 / 50
 1 ms 204 KB 
#include <iostream>
#include <vector>
using namespace std;

typedef long long ll;

int q;
vector<ll> ret;

ll get(ll x) {
    ll b = x / 9;
    ll res = 45 * b;
    for (ll i = 0; i <= x%9; i++) res += i;
    return res;
}

int main() {
    cin >> q;
    for (int i = 0; i < q; i++) {
        ll l, r; cin >> l >> r;
        ret.push_back(get(r)-get(l-1));
    }
    for (ll z : ret) cout << z << endl;
}

Subtask #1
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct