Submission #1152664

#	Time	Username	Problem	Language	Result	Execution time	Memory
1152664		gelastropod	Trobojnica (COCI19_trobojnica)	C++20	0 / 110	0 ms	320 KiB

trobojnica

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

pair<bool, vector<pair<int, pair<int, int>>>> e(vector<pair<int, pair<int, int>>> A, int n) {
	for (int i = 0; i < n; i++) {
		if (A[i].first != A[(i + 1) % n].first) {
			A[i].first = 3 - (A[i].first + A[i + 1].first);
			A[i].second = { A[i].second.first, A[(i + 1) % n].second.second };
			A.erase(A.begin() + (i + 1) % n);
			auto j = e(A, n - 1);
			if (j.first) {
				j.second.push_back(A[i]);
				return j;
			}
		}
	}
	return { false, {} };
}

signed main() {
	int N;
	string s;
	cin >> N;
	cin >> s;
	vector<pair<int, pair<int, int>>> colours;
	for (int i = 0; i <= N; i++)
		colours.push_back({ s[i] - '0', {i, (i + 1) % N}});
	auto asdasd = e(colours, N + 1);
	if (asdasd.first) {
		cout << "DA\n";
		for (auto i : asdasd.second) {
			cout << i.second.first + 1 << ' ' << i.second.second + 1 << ' ' << i.first << '\n';
		}
	}
	else
		cout << "NE\n";
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 50