제출 #1308823

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1308823		ElayV13	Fountain (eJOI20_fountain)	C++20	30 / 100	1595 ms	2804 KiB

fountain

//g++ -o solmain1 solmain1.cpp
//C:\Users\Asus-1\OneDrive\Desktop
#include <bits/stdc++.h>
using namespace std;

#define int long long
const int INF = 1e18;
int n , q;
int d[100001] , c[100001];
int nxt[100001];
signed main()
{
	ios_base::sync_with_stdio();
	cin.tie(0);
	cout.tie(0);
	cin >> n >> q;
	for(int i = 1;i <= n;i++) nxt[i] = -1;
	for(int i = 1;i <= n;i++) cin >> d[i] >> c[i];
	for(int i = 1;i <= n;i++){
		for(int j = i;j <= n;j++){
			if(d[j] > d[i]){
				nxt[i] = j;
				break;
			}
		}
	}
	while(q--){
		int idx , v;
		cin >> idx >> v;
		int cur = idx;
		int res;
		while(1){
			if(v - c[cur] > 0){
				v -= c[cur];
				cur = nxt[cur];
				if(cur == -1){
					res = 0;
					break;
				}
			}
			else{
				res = cur;
				break;
			}
		}
		cout << res << endl;
	}
}

• Subtask 1: 30 / 30
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40