Submission #726014

#	Time	Username	Problem	Language	Result	Execution time	Memory
726014		alvingogo	Split the Attractions (IOI19_split)	C++14	Compilation error	0 ms	0 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) {
	int m=p.size();
	vector<vector<int> > e(n);
	for(int i=0;i<m;i++){
		e[p[i]].push_back(q[i]);
		e[q[i]].push_back(p[i]);
	}
	vector<int> res;
	int rt=0;
	for(int i=0;i<n;i++){
		if(e[i].size()==1){
			rt=i;
			break;
		}
	}
	vector<int> gg;
	vector<int> vis(n),ans(n);
	for(int i=rt;!vis[i];){
		vis[i]=1;
		for(auto h:v[i]){
			if(!vis[h]){
				i=h;
				break;
			}
		}
	}
	for(int i=0;i<a;i++){
		ans[gg[i]]=1;
	}
	for(int i=a;i<a+b;i++){
		ans[gg[i]]=2;
	}
	for(int i=a+b;i<n;i++){
		ans[gg[i]]=3;
	}
	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:24:14: error: 'v' was not declared in this scope
   24 |   for(auto h:v[i]){
      |              ^