Submission #1068493

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1068493	2024-08-21T10:14:50 Z	Abito	Toy Train (IOI17_train)	C++17	0 / 100	1292 ms	1400 KB

train

#include "train.h"
#include <bits/stdc++.h>
//#define int long long
#define pb push_back
using namespace std;
const int N=5005;
int n;
bool a[N],c[N],cyc[N],vis[N];
vector<int> adj[N];
bool checkcyc(int s){
	queue<int> q;
	q.push(s);
	vis[s]=1;
	bool ok=0;
	while (!q.empty()){
		int x=q.front();
		//cout<<x<<' ';
		q.pop();
		for (auto u:adj[x]){
			if (c[u]) continue;
			if (vis[u]) ok=1;
			else{
				vis[u]=1;
				q.push(u);
			}
		}
	}//cout<<endl;
	return ok;
}
bool getans(int s){
	queue<int> q;
	q.push(s);
	vis[s]=1;
	bool ok=0;
	while (!q.empty()){
		int x=q.front();
		//cout<<x<<' ';
		q.pop();
		ok|=cyc[x];
		for (auto u:adj[x]){
			if (vis[u]) continue;
			else{
				vis[u]=1;
				q.push(u);
			}
		}
	}//cout<<endl;
	return ok;
}
std::vector<int32_t> who_wins(std::vector<int32_t> A, std::vector<int32_t> r, std::vector<int32_t> u, std::vector<int32_t> v) {
	n=A.size();
	for (int i=1;i<=n;i++) a[i]=A[i-1],c[i]=r[i-1];
	for (int i=0;i<u.size();i++){
		adj[u[i]+1].pb(v[i]+1);
	}
	vector<int> ans(n);
	for (int i=1;i<=n;i++){
		if (c[i]) continue;
		cyc[i]=checkcyc(i);
		memset(vis,0,sizeof(vis));
	}
	for (int i=1;i<=n;i++){
		ans[i-1]=!getans(i);
		memset(vis,0,sizeof(vis));
	}
	return ans;
}

Compilation message

train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:53:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |  for (int i=0;i<u.size();i++){
      |               ~^~~~~~~~~

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	109 ms	860 KB	3rd lines differ - on the 14th token, expected: '1', found: '0'
2	Halted	0 ms	0 KB	-

Subtask #2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	1 ms	344 KB	3rd lines differ - on the 2nd token, expected: '1', found: '0'
2	Halted	0 ms	0 KB	-

Subtask #3
0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	142 ms	1400 KB	Output is correct
2	Correct	105 ms	1396 KB	Output is correct
3	Correct	95 ms	1368 KB	Output is correct
4	Incorrect	1103 ms	1372 KB	3rd lines differ - on the 1st token, expected: '1', found: '0'
5	Halted	0 ms	0 KB	-