Submission #980659

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
980659	2024-05-12 09:51:27	oleh1421	Longest Trip (IOI23_longesttrip)	C++17	100 / 100	14 ms	1112 KiB

longesttrip

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#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
bool connected(vector<int>A,vector<int>B){
    if (A.empty() || B.empty()) return false;
    sort(A.begin(),A.end());
    sort(B.begin(),B.end());
    A.erase(unique(A.begin(),A.end()),A.end());
    B.erase(unique(B.begin(),B.end()),B.end());
    return are_connected(A,B);
}
std::vector<int> longest_trip(int N, int D)
{
    vector<int>A={0},B;
    bool not_connected = false;
    for (int i=1;i<N;i++){
        if (connected({A.back()},{i})){
            A.push_back(i);
            not_connected=false;
        } else {
            if (B.empty() || not_connected || connected({B.back()},{i})){
                B.push_back(i);
                not_connected=true;
            } else {
                reverse(B.begin(),B.end());
                for (auto i:B) A.push_back(i);
                if (B.size()==1){
                    not_connected=true;
                }
                B={i};
 
 
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Compilation message (stderr)

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:74:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |             if (pos>=A.size()){
      |                 ~~~^~~~~~~~~~
longesttrip.cpp:93:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   93 |             if (pos>=A.size()){
      |                 ~~~^~~~~~~~~~
longesttrip.cpp:111:19: 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=0;i<A0.size();i++){
      |                  ~^~~~~~~~~~
longesttrip.cpp:114:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  114 |     for (int i=0;i<B0.size();i++){
      |                  ~^~~~~~~~~~
longesttrip.cpp:118:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  118 |     for (int i=posA+1;i<A0.size();i++){
      |                       ~^~~~~~~~~~
longesttrip.cpp:124:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  124 |     for (int i=posB;i<B0.size();i++){
      |                     ~^~~~~~~~~~

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