Submission #1085697

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1085697	2024-09-08 15:16:18	vladilius	Highway Tolls (IOI18_highway)	C++17	0 / 100	11 ms	2812 KiB

highway

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#include "highway.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
void find_pair(int n, vector<int> U, vector<int> V, int A, int B){
    int m = (int) U.size();
    vector<pii> g[n + 1];
    for (int i = 0; i < m; i++){
        U[i]++; V[i]++;
        g[U[i]].pb({V[i], i});
        g[V[i]].pb({U[i], i});
    }
    
    vector<int> w(m);
    ll nl = ask(w);
    
    auto check1 = [&](int x){
        fill(w.begin(), w.end(), 0);
        for (int i = x + 1; i < m; i++) w[i] = 1;
        return (ask(w) == nl);
    };
    
    int l = 0, r = m - 1;
    while (l + 1 < r){
        int k = (l + r) / 2;
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 6
• Subtask 4: 0 / 33
• Subtask 5: 0 / 18
• Subtask 6: 0 / 31