Submission #1193026

#TimeUsernameProblemLanguageResultExecution timeMemory
1193026LuvidiSplit the Attractions (IOI19_split)C++20
18 / 100
51 ms13000 KiB
#include "split.h"
#include <bits/stdc++.h>
using namespace std;

const int maxn=1e5;
vector<int> ad[maxn],pt;
bool vs[maxn];

void dfs(int v){
	vs[v]=1;
	pt.push_back(v);
	for(int u:ad[v])if(!vs[u])dfs(u);
}

vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {
	for(int i=0;i<p.size();i++){
		ad[p[i]].push_back(q[i]);
		ad[q[i]].push_back(p[i]);
	}
	int rt=0;
	for(int i=0;i<n;i++)if(ad[i].size()==1)rt=i;
	dfs(rt);
	vector<int> ans(n);
	for(int i=0;i<a;i++)ans[pt[i]]=1;
	for(int i=a;i<a+b;i++)ans[pt[i]]=2;
	for(int i=a+b;i<a+b+c;i++)ans[pt[i]]=3;
	return ans;
}
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