oj.uz

답안 #769627

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
769627 2023-06-29T22:50:46 Z APROHACK 장난감 기차 (IOI17_train) C++14
26 / 100
 2000 ms 1884 KB 
#include "train.h"
#include<bits/stdc++.h>
#define pb push_back
#define ll long long
#define ff first
#define ss second
#define past 2
#define ancestor 1
#define unvisited 0
using namespace std;
int n;
vector<bool>owner, charging;
vector<int>adj[5001];
vector<int>adjInverso[5001];
bool isCycle[5001][2] ; // 0 Negative 1 Positive

short int vis[5001];
vector<int>nodos;
void memss(){
	for(int i = 0 ; i < n ; i ++)vis[i] = 0;
}

bool dfs(int node){
	////cout << "were " << node << endl;
	bool isA = owner[node];
	bool isCharging = charging[node];
	vis[node] = 1;
	nodos.pb(node);
	
	for(int i = 0 ; i < adj[node].size() ; i ++){
		if(!vis[adj[node][i]]){
			if(dfs(adj[node][i]) == isA){
				nodos.pop_back();
				vis[node] = 0;
				return isA;
			}
		}else{
			bool hayC = false;
			for(int j = nodos.size()-1 ; j>= 0 ; j --){
				if(charging[nodos[j]])hayC = true;
				if(nodos[j] == adj[node][i])break;
			}
			if((hayC && isA) or (!hayC && !isA)){
				nodos.pop_back();
				vis[node] = 0;
			}
			if(hayC && isA)return true;
			else if(!hayC && !isA)return false;
		}
	}
	nodos.pop_back();
	vis[node] = 0;
	return !isA;
}

void recorrer(int node){
	vis[node] = ancestor;
	nodos.pb(node);
	for(int i = 0 ; i < adj[node].size() ; i ++){
		if(vis[adj[node][i]] == past)continue;
		if(vis[adj[node][i]] == ancestor){
			bool positive = false;
			for(int j = nodos.size()-1 ; j >= 0 ; j --){
				if(charging[nodos[j]]){
					positive = true;
					break;
				}
				if(nodos[j] == adj[node][i])break;
			}
			for(int j = nodos.size() - 1 ; j >= 0 ; j --){
				if(positive)isCycle[nodos[j]][1] = true;
				else isCycle[nodos[j]][0] = true;
				if(nodos[j] == adj[node][i])break;
			}
		}else{
			recorrer(adj[node][i]);
		}
	}
	vis[node] = past;
	nodos.pop_back();
}
void dfs2(int node, int isCyclePos){
	isCycle[node][isCyclePos] = true;
	vis[node] = past;
	for(int i = 0 ; i < adjInverso[node].size() ; i ++){
		if(vis[adjInverso[node][i] ] == past)continue;
		dfs2(adjInverso[node][i], isCyclePos);
	}
}

std::vector<int> who_wins(std::vector<int> a, std::vector<int> r, std::vector<int> u, std::vector<int> v) {
	n = a.size();
	vector<int> res;
	memss();
	bool all1 = true, all0 = true;
	for(int i = 0 ; i < n ; i ++){
		isCycle[i][0] = false;
		isCycle[i][1] = false;
		owner.pb(a[i]);
		res.pb(0);
		charging.pb(r[i]);
		if(a[i] == 0)all1 = false;
		else all0 = false;
	}
	for(int i = 0 ; i < u.size() ; i ++){
		adj[u[i]].pb(v[i]);
		adjInverso[v[i]].pb(u[i]);
	}
	if(all0 or all1){
		for(int i = 0 ; i < n ; i ++){
			if(vis[i] == unvisited)recorrer(i);
		}
		memss();
		for(int i = 0 ; i < n ; i++){
			if(all1 and isCycle[i][1]){
				dfs2(i, 1);
			}else if(all0 and isCycle[i][0]){
				dfs2(i, 0);
			}
		}
		for(int i = 0 ; i < n ; i ++){
			if(all1 and isCycle[i][1])res[i] = 1;
			else if (all1)res[i] = 0;
			else if(isCycle[i][0])res[i] = 0;
			else res[i] = 1;
		}
	}else{
		for(int i = 0 ; i < n ; i ++){
			if(dfs(i)){
				res[i] = 1;
			}else res[i] = 0;
		}
	}
	return res;
}

Compilation message

train.cpp: In function 'bool dfs(int)':
train.cpp:30:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |  for(int i = 0 ; i < adj[node].size() ; i ++){
      |                  ~~^~~~~~~~~~~~~~~~~~
train.cpp:26:7: warning: unused variable 'isCharging' [-Wunused-variable]
   26 |  bool isCharging = charging[node];
      |       ^~~~~~~~~~
train.cpp: In function 'void recorrer(int)':
train.cpp:59:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |  for(int i = 0 ; i < adj[node].size() ; i ++){
      |                  ~~^~~~~~~~~~~~~~~~~~
train.cpp: In function 'void dfs2(int, int)':
train.cpp:85:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |  for(int i = 0 ; i < adjInverso[node].size() ; i ++){
      |                  ~~^~~~~~~~~~~~~~~~~~~~~~~~~
train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:105:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  105 |  for(int i = 0 ; i < u.size() ; i ++){
      |                  ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 1108 KB Output is correct
2 Correct 4 ms 1072 KB Output is correct
3 Correct 4 ms 1108 KB Output is correct
4 Correct 4 ms 1108 KB Output is correct
5 Correct 4 ms 1108 KB Output is correct
6 Correct 3 ms 1108 KB Output is correct
7 Correct 3 ms 1108 KB Output is correct
8 Correct 3 ms 1108 KB Output is correct
9 Correct 3 ms 1108 KB Output is correct
10 Correct 3 ms 1064 KB Output is correct
11 Correct 3 ms 1108 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 596 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct

Subtask #3
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 1876 KB Output is correct
2 Correct 5 ms 1748 KB Output is correct
3 Correct 5 ms 1748 KB Output is correct
4 Correct 11 ms 1828 KB Output is correct
5 Correct 8 ms 1776 KB Output is correct
6 Correct 7 ms 1620 KB Output is correct
7 Correct 7 ms 1584 KB Output is correct
8 Correct 6 ms 1620 KB Output is correct
9 Correct 5 ms 1620 KB Output is correct
10 Correct 6 ms 1472 KB Output is correct
11 Correct 7 ms 1472 KB Output is correct
12 Correct 6 ms 1492 KB Output is correct
13 Correct 21 ms 1880 KB Output is correct
14 Incorrect 24 ms 1880 KB 3rd lines differ - on the 1st token, expected: '1', found: '0'
15 Halted 0 ms 0 KB -

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 1500 KB Output is correct
2 Correct 6 ms 1364 KB Output is correct
3 Correct 7 ms 1492 KB Output is correct
4 Correct 6 ms 1492 KB Output is correct
5 Correct 6 ms 1620 KB Output is correct
6 Correct 6 ms 1492 KB Output is correct
7 Correct 6 ms 1492 KB Output is correct
8 Correct 8 ms 1428 KB Output is correct
9 Correct 6 ms 1416 KB Output is correct
10 Correct 12 ms 1884 KB Output is correct
11 Correct 12 ms 1872 KB Output is correct
12 Correct 12 ms 1884 KB Output is correct
13 Correct 9 ms 1712 KB Output is correct
14 Correct 6 ms 1472 KB Output is correct

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2070 ms 1584 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 51.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 1108 KB Output is correct
2 Correct 4 ms 1072 KB Output is correct
3 Correct 4 ms 1108 KB Output is correct
4 Correct 4 ms 1108 KB Output is correct
5 Correct 4 ms 1108 KB Output is correct
6 Correct 3 ms 1108 KB Output is correct
7 Correct 3 ms 1108 KB Output is correct
8 Correct 3 ms 1108 KB Output is correct
9 Correct 3 ms 1108 KB Output is correct
10 Correct 3 ms 1064 KB Output is correct
11 Correct 3 ms 1108 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 596 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 5 ms 1876 KB Output is correct
33 Correct 5 ms 1748 KB Output is correct
34 Correct 5 ms 1748 KB Output is correct
35 Correct 11 ms 1828 KB Output is correct
36 Correct 8 ms 1776 KB Output is correct
37 Correct 7 ms 1620 KB Output is correct
38 Correct 7 ms 1584 KB Output is correct
39 Correct 6 ms 1620 KB Output is correct
40 Correct 5 ms 1620 KB Output is correct
41 Correct 6 ms 1472 KB Output is correct
42 Correct 7 ms 1472 KB Output is correct
43 Correct 6 ms 1492 KB Output is correct
44 Correct 21 ms 1880 KB Output is correct
45 Incorrect 24 ms 1880 KB 3rd lines differ - on the 1st token, expected: '1', found: '0'
46 Halted 0 ms 0 KB -