Submission #997177

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
997177	2024-06-11 19:15:34	kunzaZa183	Longest Trip (IOI23_longesttrip)	C++17	100 / 100	12 ms	640 KiB

longesttrip

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#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> longest_trip(int N, int D) {
  vector<int> trip1(1, 0), trip2(1, 1);
  int state = 2;
  int num1;
  for (int i = 2; i < N; i++) {
    if (state == 0) {
      if (are_connected(vector<int>(1, trip2.front()), vector<int>(1, i)))
        trip2.push_back(i);
      else
        trip1.insert(trip1.begin() + num1, i);
      state = 2;
    } else if (state == 1) {
      if (are_connected(vector<int>(1, trip1.back()), vector<int>(1, i)))
        trip1.push_back(i);
      else
        trip2.push_back(i);
      state = 2;
    } else if (state == 2) {
      bool b1 = are_connected(vector<int>(1, trip1.back()), vector<int>(1, i)),
           b2 = are_connected(vector<int>(1, trip2.back()), vector<int>(1, i));
      if (b1 && b2) {
        reverse(trip2.begin(), trip2.end());
        trip1.push_back(i);
 
 
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Compilation message (stderr)

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:135:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  135 |     for (int i = firstone + 1; i < trip1.size(); i++) ans.push_back(trip1[i]);
      |                                ~~^~~~~~~~~~~~~~
longesttrip.cpp:137:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  137 |     for (int i = secondone; i < trip2.size(); i++) ans.push_back(trip2[i]);
      |                             ~~^~~~~~~~~~~~~~

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