oj.uz

답안 #444704

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
444704 2021-07-14T22:57:22 Z penguinhacker Checker (COCI19_checker) C++14
110 / 110
 720 ms 95892 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ar array

const int mxN=2e5;
int n;
string s;
ar<int, 3> e[mxN];

set<ar<ll, 2>> seen;
vector<int> f[mxN];
int l[mxN];
multiset<int> seg;

set<ar<int, 2>> adj[mxN];
int tr;

void add(int i, int j, int c) {
	adj[i].insert({j, c});
	adj[j].insert({i, c});
}

set<ar<int, 2>>::iterator gt(int i, int j) {
	auto it=adj[i].lower_bound({j});
	assert(it!=adj[i].end()&&(*it)[0]==j);
	return it;
}

void rem(int u) {
	++tr;
	int i=(*adj[u].begin())[0], j=(*adj[u].rbegin())[0];
	int c1=(*adj[u].begin())[1], c2=(*adj[u].rbegin())[1];
	adj[u].clear();
	adj[i].erase(gt(i, u));
	adj[j].erase(gt(j, u));
	gt(i, j);
	int c3=(*gt(j, i))[1];
	if (c1==c2||c1==c3||c2==c3) {
		cout << "neispravno bojenje";
		exit(0);
	}
	if (adj[i].size()==2)
		rem(i);
	if (adj[j].size()==2)
		rem(j);
}

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> n >> s;
	for (int i=0; i<n-3; ++i) {
		cin >> e[i][0] >> e[i][1] >> e[i][2], --e[i][0], --e[i][1];
		if (e[i][0]>e[i][1])
			swap(e[i][0], e[i][1]);
		if (seen.count({e[i][0], e[i][1]})) { // double edge??? bad..
			cout << "neispravna triangulacija";
			return 0;
		}
		seen.insert({e[i][0], e[i][1]});
		f[e[i][0]].push_back(e[i][1]);
		++l[e[i][1]];
	}
	for (int i=0; i<n; ++i) {
		while(l[i]--) {
			auto it=seg.find(i);
			assert(it!=seg.end());
			seg.erase(it);
		}
		assert(seg.empty()||*seg.begin()>i);
		for (int j : f[i])
			if (seg.size()&&j>*seg.begin()) {
				cout << "neispravna triangulacija";
				return 0;
			}
		for (int j : f[i])
			seg.insert(j);
	}
	for (int i=0; i<n; ++i)
		add(i, (i+1)%n, s[i]-'0');
	for (int i=0; i<n-3; ++i)
		add(e[i][0], e[i][1], e[i][2]);
	for (int i=0; i<n; ++i)
		if (adj[i].size()==2)
			rem(i);
	assert(tr==n-2);
	cout << "tocno";
	return 0;
}

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14416 KB Output is correct
3 Correct 8 ms 14340 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14336 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14416 KB Output is correct
3 Correct 8 ms 14340 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14336 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 11 ms 14948 KB Output is correct
9 Correct 11 ms 14924 KB Output is correct
10 Correct 11 ms 14540 KB Output is correct
11 Correct 9 ms 14556 KB Output is correct
12 Correct 10 ms 14924 KB Output is correct
13 Correct 11 ms 14912 KB Output is correct
14 Correct 11 ms 14944 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 563 ms 74096 KB Output is correct
2 Correct 558 ms 74148 KB Output is correct
3 Correct 286 ms 36560 KB Output is correct
4 Correct 302 ms 36516 KB Output is correct
5 Correct 325 ms 36528 KB Output is correct
6 Correct 681 ms 95892 KB Output is correct
7 Correct 626 ms 74252 KB Output is correct
8 Correct 261 ms 36812 KB Output is correct
9 Correct 297 ms 35612 KB Output is correct

Subtask #4
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 590 ms 74100 KB Output is correct
2 Correct 574 ms 74192 KB Output is correct
3 Correct 580 ms 74320 KB Output is correct
4 Correct 580 ms 74172 KB Output is correct
5 Correct 542 ms 74192 KB Output is correct
6 Correct 628 ms 87008 KB Output is correct
7 Correct 720 ms 78844 KB Output is correct
8 Correct 687 ms 76752 KB Output is correct
9 Correct 573 ms 72132 KB Output is correct

Subtask #5
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14416 KB Output is correct
3 Correct 8 ms 14340 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14336 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 11 ms 14948 KB Output is correct
9 Correct 11 ms 14924 KB Output is correct
10 Correct 11 ms 14540 KB Output is correct
11 Correct 9 ms 14556 KB Output is correct
12 Correct 10 ms 14924 KB Output is correct
13 Correct 11 ms 14912 KB Output is correct
14 Correct 11 ms 14944 KB Output is correct
15 Correct 563 ms 74096 KB Output is correct
16 Correct 558 ms 74148 KB Output is correct
17 Correct 286 ms 36560 KB Output is correct
18 Correct 302 ms 36516 KB Output is correct
19 Correct 325 ms 36528 KB Output is correct
20 Correct 681 ms 95892 KB Output is correct
21 Correct 626 ms 74252 KB Output is correct
22 Correct 261 ms 36812 KB Output is correct
23 Correct 297 ms 35612 KB Output is correct
24 Correct 590 ms 74100 KB Output is correct
25 Correct 574 ms 74192 KB Output is correct
26 Correct 580 ms 74320 KB Output is correct
27 Correct 580 ms 74172 KB Output is correct
28 Correct 542 ms 74192 KB Output is correct
29 Correct 628 ms 87008 KB Output is correct
30 Correct 720 ms 78844 KB Output is correct
31 Correct 687 ms 76752 KB Output is correct
32 Correct 573 ms 72132 KB Output is correct
33 Correct 577 ms 74128 KB Output is correct
34 Correct 577 ms 74184 KB Output is correct
35 Correct 332 ms 36648 KB Output is correct
36 Correct 291 ms 36580 KB Output is correct
37 Correct 562 ms 74260 KB Output is correct
38 Correct 563 ms 74264 KB Output is correct
39 Correct 544 ms 74164 KB Output is correct
40 Correct 676 ms 94672 KB Output is correct
41 Correct 703 ms 80612 KB Output is correct
42 Correct 284 ms 37784 KB Output is correct
43 Correct 630 ms 76648 KB Output is correct