제출 #975675

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
975675		vjudge1	Trol (COCI19_trol)	C++17	50 / 50	1 ms	432 KiB

trol

#include <bits/stdc++.h>
#define ll long long
using namespace std;

int main(){
    ll q; cin >> q;
    for(int i = 0; i < q; i++){
        ll left, right;
        cin >> left >> right;
        ll hasil = 0;
        ll kepake_kok = (right - left) / 9;
        // cerr << kepake_kok << endl;
        hasil += kepake_kok * 45;
        ll idx = right - (kepake_kok * 9);
        while(idx >= left){
            if(idx % 9 == 0){
                hasil += 9;
            }else{
                hasil += idx % 9;
            }
            // cerr << hasil << endl;
            idx--;
        }
        cout << hasil << endl;
    }

    return 0;
}

• Subtask 1: 50 / 50