Submission #389385

#	Time	Username	Problem	Language	Result	Execution time	Memory
389385		8e7	Binary Subsequences (info1cup17_binary)	C++14	0 / 100	1 ms	204 KiB

binary

//Challenge: Accepted
#include <iostream>
#include <algorithm>
#include <utility>
#include <vector>
#define ll long long
#define maxn 100005
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
#define pii pair<int, int>
using namespace std;
//#include <bits/extc++.h>
//using namespace __gnu_pbds;
//template<lcass T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
//find by order, order of key
int main() {
	io
	int t;
	cin >> t;
	while (t--) {
		int k;
		cin >> k;

		cout << ((k + 3) / 2 - 1) * 2 << "\n";
		cout << -1 << "\n";
	}
}

• Subtask 1: 0 / 43
• Subtask 2: 0 / 39
• Subtask 3: 0 / 18