Submission #768534

#	Time	Username	Problem	Language	Result	Execution time	Memory
768534		Trumling	Split the Attractions (IOI19_split)	C++14	11 / 100	54 ms	12064 KiB

split

#include "split.h"
#include <bits/stdc++.h>
using namespace std; 

typedef long long ll;
#define pb push_back
#define F first
#define S second
#define enter cout<<'\n';
#define INF 99999999999999999
#define MOD 1000000007
#define all(x) x.begin(),x.end()

int n,a,b,c;
vector<int>p,q;
vector<vector<int>>g;
vector<int> res;
vector<bool>vis;


vector<int> find_split(int nn, int aa, int bb, int cc, vector<int> pp, vector<int> qq) {

p=pp;
q=qq;
n=nn;
a=aa;
b=bb;
c=cc;

g.assign(n,vector<int>());
res.assign(n,0);
vis.assign(n,0);

ll m=p.size();

for(int i=0;i<m;i++)
{
	g[p[i]].pb(q[i]);
	g[q[i]].pb(p[i]);

}

queue<int>q;
q.push(0);
ll count=1;

while(!q.empty())
{
ll curr=q.front();
q.pop();
vis[curr]=1;
res[curr]=2;

for(auto x:g[curr])
if(!vis[x] && count<bb)
{
	vis[x]=1;
	q.push(x);
	count++;
}
}

bool tf=0;

for(int i=0;i<n;i++)
if(res[i]!=2)
	if(tf)
	res[i]=3;
	else
	{
		res[i]=1;
		tf=1;
	}

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:66:3: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
   66 | if(res[i]!=2)
      |   ^

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