Submission #603361

#	Time	Username	Problem	Language	Result	Execution time	Memory
603361		Shithila	Split the Attractions (IOI19_split)	C++14	0 / 100	0 ms	212 KiB

split

#include "split.h"
#include <bits/stdc++.h>
using namespace std;
 
vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {
	vector<int> res;
	int m=p.size();
	//cout<<m<<endl;
	int connected[m][2];
	bool visited[m];
	
	for(int i=0;i<n;i++)
	{
		connected[i][0]=-1;
		connected[i][1]=-1;
		visited[i]=false;
		res.push_back(3);
	}
	for(int i=0;i<m;i++)
	{
		int x=p[i];
		int y=q[i];
		if(connected[x][0]==-1) connected[x][0]=y;
		else connected[x][1]=y;
		if(connected[y][0]==-1) connected[y][0]=x;
		else connected[y][1]=x;
	}
	int startpos=-1;
	int endpos=-1;
	for(int i=0;i<n;i++)
	{
		if(connected[i][0]==-1 || connected[i][1]==-1)
		{
			if(startpos==-1) startpos=i;
			else endpos=i;
		}
	}
	if(startpos=-1)
	{
		return res;
	}
	int startcount=0;
	while(startcount<a)
	{
		visited[startpos]=true;
		res[startpos]=1;
		startcount++;
		if(visited[connected[startpos][0]]==true)
		{
			startpos=connected[startpos][1];
		}
		else startpos=connected[startpos][0];
	}
	int endcount=0;
	while(endcount<b)
	{
		visited[endpos]=true;
		res[endpos]=2;
		endcount++;
		if(visited[connected[endpos][0]]==true)
		{
			endpos=connected[endpos][1];
		}
		else endpos=connected[endpos][0];
	}
	/*for(int i=0;i<n;i++)
	{
		cout<<res[i]<<" ";
	}
	cout<<endl;*/
	return res;
}

Compilation message (stderr)

split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:38:13: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   38 |  if(startpos=-1)
      |     ~~~~~~~~^~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 24
• Subtask 5: 0 / 36