Submission #1159102

#	Time	Username	Problem	Language	Result	Execution time	Memory
1159102		timoni	Spring cleaning (CEOI20_cleaning)	C++20	0 / 100	16 ms	656 KiB

cleaning

// made by Tima
// 2025 will be a golden year...
//BREAK YOUR LIMITS!!!!
#include "bits/stdc++.h"
#include <ext/pb_ds/assoc_container.hpp>
#define ll long long
#define pb push_back
#define pf push_front
#define ppb pop_back
#define ppf pop_front
#define int long long
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
#define pii pair<int,int>
#define tpii pair <pair <int,int> , int>
using namespace std;
using namespace __gnu_pbds;
const int N = 3e5 + 5;
int mod = 1e9 + 7;
const int INF = 1e18;
int n,q;
void Gold(){
	cin >> n >> q;
	for(int i = 1 ; i < n ; i++){
		int u,v;
		cin >> u >> v;
	}
	for(int i = 1 ; i <= q ; i++){
		int d;
		cin >> d;
		for(int j = 1 ; j <= d ; j++){
			int a;
			cin >> a;
		}
		if((n - 1) % 2){
			cout << "-1\n";
			continue;
		}
		cout << n - 1 + d << '\n'; 
	}
}
signed main(/*Zhunussov Temirlan*/){
	//freopen("txt.in","r",stdin);freopen("txt.out","w",stdout);
	ios_base::sync_with_stdio(0);cin.tie(0);
	srand(time(0));
	int TT = 1;
	// cin >> TT;
	for(int i = 1 ; i <= TT ; i++){
		//cout << "Case " << i << ": ";
		Gold();
	}
}

• Subtask 1: 0 / 0
• Subtask 2: 0 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 16
• Subtask 5: 0 / 19
• Subtask 6: 0 / 17
• Subtask 7: 0 / 30