Submission #1016307

#	Time	Username	Problem	Language	Result	Execution time	Memory
1016307		Andrey	Closing Time (IOI23_closing)	C++17	0 / 100	1140 ms	1689292 KiB

closing

#include "closing.h"
#include<bits/stdc++.h>
#include <vector>
using namespace std;

long long n,x,y,k;
vector<pair<long long,long long>> haha[200001];
vector<long long> bruh(200001);
vector<long long> wow(200001);

void dfs(long long a, long long t, long long d, bool yeah) {
    if(yeah) {
        bruh[a] = d;
    }
    else {
        wow[a] = d;
    }
    for(pair<long long,long long> v: haha[a]) {
        if(v.first != t) {
            dfs(v.first,a,d+v.second,yeah);
        }
    }
}

int max_score(int N, int X, int Y, long long K, std::vector<int> U, std::vector<int> V, std::vector<int> W) {
    n = N;
    x = X;
    y = Y;
    k = K;
    for(long long i = 0; i < n-1; i++) {
        haha[U[i]].push_back({V[i],W[i]});
        haha[V[i]].push_back({U[i],W[i]});
    }
    long long ans = 0;
    dfs(x,-1,0,true);
    dfs(y,-1,0,false);
    vector<long long> wut(0);
    for(long long i = 1; i <= n; i++) {
        wut.push_back(min(bruh[i],wow[i]));
    }
    sort(wut.begin(),wut.end());
    long long sb = 0;
    for(long long i = 0; i < wut.size(); i++) {
        sb+=wut[i];
        if(sb > k) {
            break;
        }
        ans++;
    }
    return ans;
}

Compilation message (stderr)

closing.cpp: In function 'int max_score(int, int, int, long long int, std::vector<int>, std::vector<int>, std::vector<int>)':
closing.cpp:43:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |     for(long long i = 0; i < wut.size(); i++) {
      |                          ~~^~~~~~~~~~~~

• Subtask 0: 0 / 0
• Subtask 1: 0 / 8
• Subtask 2: 0 / 9
• Subtask 3: 0 / 12
• Subtask 4: 0 / 14
• Subtask 5: 0 / 9
• Subtask 6: 0 / 11
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 17