Submission #939797

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
939797	2024-03-06T18:59:15 Z	weajink	Longest Trip (IOI23_longesttrip)	C++17	Compilation error	0 ms	0 KB

longesttrip

#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;
typedef long long ll;

vector<int> sciezka[2];

void dodaj_wierzcholek(int v){
	if (!sciezka[0].size() || are_connected({v},{sciezka[0].back()})){
		sciezka[0].push_back(v);
		return;
	}
	if (!sciezka[1].size() || are_connected({v},{sciezka[1].back()})){
		sciezka[1].push_back(v);
		return;
	}
	for (int i = (int)sciezka[1].size()-1; i >= 0; i--) sciezka[0].push_back(sciezka[1][i]);
	sciezka[1] = {v};
}
int zbinsearchuj(vector<int> A, vector<int> B){
	if (A.size() == 1) return A.back();
	vector<int> polowy[2];
	for (int i = 0; i < (int)A.size(); i++){
		polowy[i>=((int)A.size()/2)].push_back(A[i]);
	}
	if (are_connected(polowy[0],B)) return zbinsearchuj(polowy[0],B);
	else return zbinsearchuj(polowy[1],B); 
}	
vector<int> longest_trip(int N, int D){
	sciezka[0].clear();
	sciezka[1].clear();
	for (int i = 0; i < N; i++) dodaj_wierzcholek(i);
	if (sciezka[0].size() < sciezka[1].size()) swap(sciezka[0],sciezka[1]);
	if (!sciezka[1].size()) return sciezka[0];
	if (!are_connected(sciezka[0],sciezka[1])) return sciezka[0];
	//
	if (are_connected(sciezka[0].back(),sciezka[1][0])){
		vector<int> wynik;
		for (int x : sciezka[0]) wynik.push_back(x);
		for (int x : sciezka[1]) wynik.push_back(x);
		return wynik;
	}
	reverse(sciezka[0].begin(),sciezka[0].end());
	if (are_connected(sciezka[0].back(),sciezka[1][0])){
		vector<int> wynik;
		for (int x : sciezka[0]) wynik.push_back(x);
		for (int x : sciezka[1]) wynik.push_back(x);
		return wynik;
	}
	reverse(sciezka[1].begin(),sciezka[1].end());
	if (are_connected(sciezka[0].back(),sciezka[1][0])){
		vector<int> wynik;
		for (int x : sciezka[0]) wynik.push_back(x);
		for (int x : sciezka[1]) wynik.push_back(x);
		return wynik;
	}
	reverse(sciezka[0].begin(),sciezka[0].end());
	if (are_connected(sciezka[0].back(),sciezka[1][0])){
		vector<int> wynik;
		for (int x : sciezka[0]) wynik.push_back(x);
		for (int x : sciezka[1]) wynik.push_back(x);
		return wynik;
	}
	//
	int a = zbinsearchuj(sciezka[0],sciezka[1]);
	int b = zbinsearchuj(sciezka[1],{a});
	vector<int> wy[2];
	bool flag = 0;
	for (int x : sciezka[0]){
		wy[flag].push_back(x);
		if (x == a) flag = 1;
	}
	vector<int> wynik;
	for (int x : wy[1]) wynik.push_back(x);
	for (int x : wy[0]) wynik.push_back(x);
	wy[0] = wy[1] = {};	
	flag = 0;
	for (int x : sciezka[1]){
		if (x == b) flag = 1;
		wy[flag].push_back(x);
	}
	for (int x : wy[1]) wynik.push_back(x);
	for (int x : wy[0]) wynik.push_back(x);
	return wynik;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:37:35: error: could not convert 'sciezka[0].std::vector<int>::back()' from '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} to 'std::vector<int>'
   37 |  if (are_connected(sciezka[0].back(),sciezka[1][0])){
      |                    ~~~~~~~~~~~~~~~^~
      |                                   |
      |                                   __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type {aka int}
longesttrip.cpp:44:35: error: could not convert 'sciezka[0].std::vector<int>::back()' from '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} to 'std::vector<int>'
   44 |  if (are_connected(sciezka[0].back(),sciezka[1][0])){
      |                    ~~~~~~~~~~~~~~~^~
      |                                   |
      |                                   __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type {aka int}
longesttrip.cpp:51:35: error: could not convert 'sciezka[0].std::vector<int>::back()' from '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} to 'std::vector<int>'
   51 |  if (are_connected(sciezka[0].back(),sciezka[1][0])){
      |                    ~~~~~~~~~~~~~~~^~
      |                                   |
      |                                   __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type {aka int}
longesttrip.cpp:58:35: error: could not convert 'sciezka[0].std::vector<int>::back()' from '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} to 'std::vector<int>'
   58 |  if (are_connected(sciezka[0].back(),sciezka[1][0])){
      |                    ~~~~~~~~~~~~~~~^~
      |                                   |
      |                                   __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type {aka int}