Submission #709067

#	Time	Username	Problem	Language	Result	Execution time	Memory
709067		vjudge1	Abracadabra (CEOI22_abracadabra)	C++17	10 / 100	255 ms	12288 KiB

Main

#include <bits/stdc++.h>

#define int long long

using namespace std;

const int N = 1007;

int n, q, a[N];
vector<int> g[N];

signed main () {
	ios_base::sync_with_stdio(NULL);
	cin.tie(0), cout.tie(0);
	cin >> n >> q;
	int lol = 0;
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
		g[lol].push_back(a[i]);
	}	
	while (lol <= 1000) {
		lol++;
		int l = 0, r = n/2;
		while (l < n/2 || r < n) {                          
			if (l == n/2) {
				g[lol].push_back(g[lol-1][r]);
				r++;
				continue;
			}
			if (r == n) {
				g[lol].push_back(g[lol-1][l]);
				l++;
				continue;
			}
			if (g[lol-1][l] <= g[lol-1][r]) {
				g[lol].push_back(g[lol-1][l]);
				l++;
			} else {
				g[lol].push_back(g[lol-1][r]);
				r++;
			}
		}
		if (g[lol] == g[lol-1]) break;
	}
	while (q--) {
		int i, j;
		cin >> i >> j;
		cout << g[min(lol, i)][j-1] << '\n';
	}		
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25