Submission #293470

#	Time	Username	Problem	Language	Result	Execution time	Memory
293470		Dovran	Highway Tolls (IOI18_highway)	C++11	0 / 100	14 ms	3220 KiB

highway

#include <bits/stdc++.h>
#include "highway.h"
#define N 100009
#define pii pair <int, int>
#define ff first
#define ss second
#define pb push_back
#define ll long long

using namespace std;

int n, m, x, dsa;
vector<int>e[N];


void f(int nd, int pr, int lv){
	if(lv==x){
		answer(0, nd);
		dsa=1;
		return;
	}
	for(auto i:e[nd]){
		if(i!=pr)
			f(i, nd, lv+1);
		if(dsa)
			return;
	}
}

void find_pair(int NN, std::vector<int>u, std::vector<int>v, int a, int b){
	n=NN, m=u.size();
	vector<int>asd;
	for(int i=0; i<m; i++)
		e[u[i]].pb(v[i]), e[v[i]].pb(u[i]), asd.pb(0);
	
	x=ask(asd), x/=a;
	f(0, -1, 1);
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 6
• Subtask 4: 0 / 33
• Subtask 5: 0 / 18
• Subtask 6: 0 / 31