Submission #139488

#	Time	Username	Problem	Language	Result	Execution time	Memory
139488		arthurconmy	Toy Train (IOI17_train)	C++14	0 / 100	2074 ms	892 KiB

train

#include <bits/stdc++.h>
#ifndef ARTHUR_LOCAL
	#include "train.h"
#endif

using namespace std;

const int MAXN = 5000;

bool is_loop[MAXN];
bool go_next[MAXN];

vector<int> who_wins(vector<int> A, vector<int> R, vector<int> U, vector<int> V)
{
	int n = A.size();
	int m = V.size();

	for(int i=0; i<m; i++)
	{
		if(U[i]==V[i]) is_loop[U[i]]=1;
		else go_next[min(U[i],V[i])]=1;
	}

	vector<int> ans;

	for(int i=0; i<n; i++)
	{
		int cur=i;

		while(true)
		{
			if(is_loop[cur] && A[cur] && R[cur]) ans.push_back(1);
			if(is_loop[cur] && !A[cur] && !R[cur]) ans.push_back(0);

			if(ans.size()==i+1) break;

			if(!go_next[cur]) ans.push_back(R[cur]);

			if(ans.size()==i+1) break;

			cur=go_next[cur];
		}
	}

	return ans;
}

#ifdef ARTHUR_LOCAL
	int main()
	{
		cout << "ppop" << endl;
	}
#endif

Compilation message (stderr)

train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:35:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if(ans.size()==i+1) break;
       ~~~~~~~~~~^~~~~
train.cpp:39:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if(ans.size()==i+1) break;
       ~~~~~~~~~~^~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 11
• Subtask 4: 0 / 11
• Subtask 5: 0 / 12
• Subtask 6: 0 / 51