제출 #976534

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
976534		vjudge1	Trol (COCI19_trol)	C++17	50 / 50	1 ms	348 KiB

trol

#include <bits/stdc++.h>
typedef long long ll;
#define fi first
#define sc second
#define pb push_back
using namespace std;

void solve() {
    ll n; cin >> n;
    for (int i = 0; i < n; i++) {
        ll l, r; cin >> l >> r;
        ll jumlah = r - l + 1, ans = 0;
        ans += (jumlah / 9) * 45;
        for (ll j = l % 9; j < (l % 9) + (jumlah % 9); j++) {
            int tambah = j % 9;
            if (tambah == 0) tambah = 9;
            ans += tambah;
        }
        cout << ans << endl;
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    solve();
}

• Subtask 1: 50 / 50