oj.uz

답안 #677921

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
677921 2023-01-04T16:00:01 Z APROHACK 열쇠 (IOI21_keys) C++17
37 / 100
 203 ms 27068 KB 
#include <bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define pb push_back
using namespace std;
int n, m;
vector<pair<int, int> >puentesDeEsteColor[2005];
int colorDeNodo[2005];
int respuestaParaNodo[2005];
int menorDeTodos = INT32_MAX;


bool yaPaso[2005];
int padre[2005];
vector<int>nodosDeEsteMan[2005];
int recorriendo;

int findPadre(int u){
	if(padre[u] == u)return u;
	return padre[u] = findPadre(padre[u]);
}

queue<int>llavesPorTomar;

void unir(int u, int v){
	u = findPadre(u);
	v = findPadre(v);
	if(u==v)return;
	//cout << "vamos a unir " << u << " " << v << endl;
	if(nodosDeEsteMan[u].size()>nodosDeEsteMan[v].size())swap(u, v);
	//u -> v
	if(u == findPadre(recorriendo)){
		for(int i = 0 ; i < nodosDeEsteMan[v].size() ; i++){
			int curNodo = nodosDeEsteMan[v][i];

			llavesPorTomar.push(colorDeNodo[curNodo]);

		}
	}else if(v == findPadre(recorriendo)){
		for(int i = 0 ; i < nodosDeEsteMan[u].size() ; i++){
			int curNodo = nodosDeEsteMan[u][i];

			llavesPorTomar.push(colorDeNodo[curNodo]);

		}
	}

	for(int i = 0 ; i < nodosDeEsteMan[u].size() ; i ++){
		padre[nodosDeEsteMan[u][i]] = v;
		nodosDeEsteMan[v].pb(nodosDeEsteMan[u][i]);
	}
	nodosDeEsteMan[u].clear();


}


int recorrerDesdeNodo(int u){
	//cout << "resolviendo para " << u << endl;
	recorriendo = u;

	llavesPorTomar.push(colorDeNodo[u]);
	while(!llavesPorTomar.empty()){
		int currentColor = llavesPorTomar.front();
		llavesPorTomar.pop();
		if(yaPaso[currentColor])continue;
		yaPaso[currentColor] = true;
		//cout << "Analizando color " << currentColor << endl;

		for(pair<int, int> puente:puentesDeEsteColor[currentColor]){
			unir(puente.ff, puente.ss);
			recorriendo = findPadre(recorriendo);
			if(nodosDeEsteMan[recorriendo].size()>menorDeTodos)return nodosDeEsteMan[recorriendo].size();	
		}
	}
	return nodosDeEsteMan[recorriendo].size();
}

void reiniciar(){
	memset(yaPaso, false, sizeof yaPaso);
	for(int i = 0 ; i < n ; i ++){
		padre[i] = i;
		nodosDeEsteMan[i].clear();
		nodosDeEsteMan[i].pb(i);
	}

	while(!llavesPorTomar.empty())llavesPorTomar.pop();

}


std::vector<int> find_reachable(std::vector<int> r, std::vector<int> u, std::vector<int> v, std::vector<int> c) {
	n = r.size();
	m = u.size();
	for(int i = 0 ; i < m ; i ++){
		puentesDeEsteColor[c[i]].pb({u[i], v[i]});
	}
	for(int i = 0 ; i <n ; i ++){
		colorDeNodo[i] = r[i];
	}
	vector<int>ans;
	for(int i = 0 ; i <n ; i ++){

		reiniciar();
		respuestaParaNodo[i] = recorrerDesdeNodo(i);
		
		menorDeTodos=min(respuestaParaNodo[i], menorDeTodos);

		//cout << "Respuesta para nodo " << i << " = " << respuestaParaNodo[i] << endl;
		
	}
	for(int i = 0 ; i < n ; i ++){
		if(respuestaParaNodo[i] == menorDeTodos)ans.pb(1);
		else ans.pb(0);
	}
	return ans;
}

Compilation message

keys.cpp: In function 'void unir(int, int)':
keys.cpp:34:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |   for(int i = 0 ; i < nodosDeEsteMan[v].size() ; i++){
      |                   ~~^~~~~~~~~~~~~~~~~~~~~~~~~~
keys.cpp:41:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |   for(int i = 0 ; i < nodosDeEsteMan[u].size() ; i++){
      |                   ~~^~~~~~~~~~~~~~~~~~~~~~~~~~
keys.cpp:49:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |  for(int i = 0 ; i < nodosDeEsteMan[u].size() ; i ++){
      |                  ~~^~~~~~~~~~~~~~~~~~~~~~~~~~
keys.cpp: In function 'int recorrerDesdeNodo(int)':
keys.cpp:74:41: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   74 |    if(nodosDeEsteMan[recorriendo].size()>menorDeTodos)return nodosDeEsteMan[recorriendo].size();
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 404 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 404 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 400 KB Output is correct
17 Correct 1 ms 400 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 2 ms 468 KB Output is correct
22 Correct 1 ms 400 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 2 ms 528 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct

Subtask #3
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 404 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 400 KB Output is correct
17 Correct 1 ms 400 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 2 ms 468 KB Output is correct
22 Correct 1 ms 400 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 2 ms 528 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 23 ms 632 KB Output is correct
28 Correct 24 ms 596 KB Output is correct
29 Correct 22 ms 652 KB Output is correct
30 Correct 23 ms 1620 KB Output is correct
31 Correct 6 ms 468 KB Output is correct
32 Correct 2 ms 340 KB Output is correct
33 Correct 5 ms 416 KB Output is correct
34 Correct 31 ms 2380 KB Output is correct
35 Correct 31 ms 2772 KB Output is correct
36 Correct 72 ms 5052 KB Output is correct
37 Correct 117 ms 9348 KB Output is correct
38 Correct 203 ms 11996 KB Output is correct
39 Correct 138 ms 9416 KB Output is correct
40 Correct 9 ms 468 KB Output is correct
41 Correct 11 ms 540 KB Output is correct

Subtask #4
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 404 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Runtime error 93 ms 27068 KB Execution killed with signal 11
11 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 404 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 400 KB Output is correct
17 Correct 1 ms 400 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 2 ms 468 KB Output is correct
22 Correct 1 ms 400 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 2 ms 528 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 23 ms 632 KB Output is correct
28 Correct 24 ms 596 KB Output is correct
29 Correct 22 ms 652 KB Output is correct
30 Correct 23 ms 1620 KB Output is correct
31 Correct 6 ms 468 KB Output is correct
32 Correct 2 ms 340 KB Output is correct
33 Correct 5 ms 416 KB Output is correct
34 Correct 31 ms 2380 KB Output is correct
35 Correct 31 ms 2772 KB Output is correct
36 Correct 72 ms 5052 KB Output is correct
37 Correct 117 ms 9348 KB Output is correct
38 Correct 203 ms 11996 KB Output is correct
39 Correct 138 ms 9416 KB Output is correct
40 Correct 9 ms 468 KB Output is correct
41 Correct 11 ms 540 KB Output is correct
42 Runtime error 93 ms 27068 KB Execution killed with signal 11
43 Halted 0 ms 0 KB -