oj.uz

답안 #498741

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
498741 2021-12-26T09:28:39 Z aurims Cheap flights (LMIO18_pigus_skrydziai) C++14
0 / 100
 104 ms 262148 KB 
#include <bits/stdc++.h>
#define debug cout << "alio\n";
#define pb push_back
#define ll long long
#define MAXN 5000
using namespace std;

/* 
input
5 4
1 2 1
1 3 2
1 4 1
2 4 1
*/

struct miestas
{
	vector<int> kaimynai;
	vector<ll> pelnas;

};
vector<miestas> miestai;
vector<bool> aplankyti;

void dfs(int idx, int deep)
{
	aplankyti[idx] = true;
	if(deep <= 0)
		return;
	for(int sidx : miestai[idx].kaimynai)
	{
		if(aplankyti[sidx])
			continue;
		cout << "deep: " << deep << '\n';
		cout << idx << " kaimynas " << sidx << '\n';
		cout << '\n';
		dfs(sidx, --deep);
	}
}

int main()
{
	//int m1[MAXN][MAXN];
	int N, M;
	cin >> N >> M;
	/*
	for(int i = 0; i < N; i++)
	{
		for(int j = 0; j < N; j++)
		{
			m1[i][j] = -1;
		}
	}
	*/
	miestai.resize(N);
	aplankyti.resize(N);
	for(int i = 0; i < N; i++)
	{
		miestai[i].pelnas.resize(N);
		for(int j = 0; j < N; j++)
		{
			miestai[i].pelnas[j] = -1;
		}
	}
	for(int i = 0; i < N; i++)
		aplankyti[i] = false;
	for(int i = 0; i < M; i++)
	{
		int a, b;
		ll p;
		cin >> a >> b >> p;
		miestai[a-1].kaimynai.pb(b-1);
		miestai[b-1].kaimynai.pb(a-1);
		miestai[a-1].pelnas[b-1] = p;
		miestai[b-1].pelnas[a-1] = p;
		/*
		m1[a-1][b-1] = p;
		m1[b-1][a-1] = p;
		*/
	}
	int mx = -1;
	// perrenkam visas zvaigzdes
	for(int i = 0; i < N; i++)
	{
		int sum = 0;
		for(int sidx : miestai[i].kaimynai)
		{
			sum += miestai[i].pelnas[sidx];
		}
		if(sum > mx)
			mx = sum;
	}
	// perrenkam visus trikampius
	for(int i = 0; i < N; i++)
	{
		int sum = 0;
		int mxind_1 = 0;
		int mxind_2 = 0;
		for(int sidx : miestai[i].kaimynai)
		{
			if(miestai[i].pelnas[sidx] > miestai[i].pelnas[mxind_1])
			{
				mxind_1 = sidx;
			}
			else if(miestai[i].pelnas[sidx] > miestai[i].pelnas[mxind_2])
			{
				mxind_2 = sidx;
			}
		}
		if(miestai[mxind_1].pelnas[mxind_2] != -1)
			sum += miestai[mxind_1].pelnas[mxind_2] + miestai[i].pelnas[mxind_1] + miestai[i].pelnas[mxind_2];
		if(sum > mx)
			mx = sum;
	}
	cout << mx << '\n';
}

Subtask #1
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Incorrect 0 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Incorrect 0 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 104 ms 262148 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 47.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 104 ms 262148 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -