Submission #941901

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
941901	2024-03-09 16:24:22	benjaminkleyn	Longest Trip (IOI23_longesttrip)	C++17	100 / 100	12 ms	860 KiB

longesttrip

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#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;
vector<int> longest_trip(int N, int D)
{
    if (D == 3)
    {
        vector<int> res(N);
        iota(res.begin(), res.end(), 0);
        return res;
    }
    if (D == 2)
    {
        vector<int> res;
        int cur;
        if (are_connected({0}, {1}))
            res = {0, 1}, cur = 2;
        else
            res = {0, 2, 1}, cur = 3;
        for (int i = cur; i < N; i++)
        {
            if (!are_connected({res.back()}, {i}))
                reverse(res.begin(), res.end());
            res.push_back(i);
        }
        return res;
 
 
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Compilation message (stderr)

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:150:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  150 |     for (int i = idxA + 1; i < A.size(); i++)
      |                            ~~^~~~~~~~~~
longesttrip.cpp:154:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  154 |     for (int i = idxB; i < B.size(); i++)
      |                        ~~^~~~~~~~~~

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