Submission #851527

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
851527	2023-09-20 04:09:44	batmendbar	Longest Trip (IOI23_longesttrip)	C++17	100 / 100	15 ms	852 KiB

longesttrip

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#include "longesttrip.h"
#include <algorithm>
#include <random>
#include <stack>
#include <iostream>
using namespace std;
vector<int> longest_trip(int N, int D)
{
    vector<int> big, small, nodes;
    for (int i = 0; i < N; i++) 
        nodes.push_back(i);
    random_device rd;
    mt19937 g(rd());
    shuffle(nodes.begin(), nodes.end(), g);
    
    // for (int node : nodes) cout << node << ' ';
    // cout << '\n';
    // cout.flush();
    big.push_back(nodes[0]);
    small.push_back(nodes[1]);
    
    bool guarantee = false;
    for (int i = 2; i < N; i++) {
        if (are_connected(vector<int>{big.back()}, vector<int>{nodes[i]})) {
 
 
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Compilation message (stderr)

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:111:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  111 |         for (int i = smallInd + 1; i < small.size(); i++) {
      |                                    ~~^~~~~~~~~~~~~~
longesttrip.cpp:117:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  117 |         for (int i = bigInd; i < big.size(); i++) {
      |                              ~~^~~~~~~~~~~~

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 25 / 25
• Subtask 4: 60 / 60