제출 #409086

#제출 시각아이디문제언어결과실행 시간메모리
409086AmineTrabelsiSplit the Attractions (IOI19_split)C++14
0 / 100
625 ms1048580 KiB
#include "split.h"
#include <bits/stdc++.h>
using namespace std;

void get_order(int node,int par,vector<int> &order,vector<vector<int>> &gr){
    order.push_back(node);
    for(auto i:gr[node]){
        if(i != par)get_order(i,node,order,gr);
    }
}
vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {
    vector<vector<int>> gr(n+1,vector<int>());
    vector<int> order;
	for(int i=0;i<(int)p.size();i++){
        gr[p[i]].push_back(q[i]);
        gr[q[i]].push_back(p[i]);
    }
    for(int i=0;i<n;i++){
        if((int)gr[i].size() == 1){
            get_order(i,-1,order,gr);
            break;
        }
    }
    vector<int> res(n,0);
    int ind = 0;
    while(a--){
        res[order[ind++]] = 1;
    }
    while(b--){
        res[order[ind++]] = 2;
    }
    while(ind < n){
        res[order[ind++]] = 3;
    }
	return res;
}
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