제출 #645305

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
645305		Hacv16	Trol (COCI19_trol)	C++17	0 / 50	1 ms	316 KiB

trol

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

typedef long long ll;
typedef pair<int, int> pii;

const int MAX = 2e6 + 15;
const int INF = 0x3f3f3f3f;
const int MOD = 1e9 + 7;

#define pb push_back
#define sz(x) (int) x.size()
#define fr first
#define sc second
#define mp make_pair
#define all(x) x.begin(), x.end()
#define dbg(x) cerr << #x << ": " << "[ " << x << " ]\n"

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); 

    ll q; cin >> q;

    while(q--){
        ll l, r; cin >> l >> r;
        ll ans = ((r - l + 1) / 9) * 45;

        ll m1 = (l % 9 == 0 ? 9 : l % 9), m2 = (r % 9 == 0 ? 9 : r % 9);

        for(int i = m1; i != m2; i = (i == 9 ? 1 : i + 1))
            ans += i;

        cout << ans + m2 << '\n';
    }   

    return 0;
}

• Subtask 1: 0 / 50