oj.uz

Submission #1011029

# Submission time Handle Problem Language Result Execution time Memory
1011029 2024-06-29T17:13:40 Z Dan4Life Longest Trip (IOI23_longesttrip) C++17
Compilation error
 0 ms 0 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)

bool connected(deque<int> A, deque<int> B){
	vector<int> Av,Bv;Av.clear(),Bv.clear();
	for(auto u : A) Av.pb(u);
	for(auto u : B) Bv.pb(u);
	return are_connected(Av,Bv);
}

vector<int> longest_trip(int N, int D){
	srand(time(0));
	
	deque<int> line1, line2; line1.clear(),line2.clear();
	vector<int> ord(N,0); iota(all(ord),0);
	random_shuffle(all(ord));
	for(auto x : ord){
		if(line1.empty()) line1.push_back(x);
		else if(are_connected({x},{line1.back()})) line1.push_back(x);
		else if(!line2.empty() and are_connected({line1.back()},{line2.back()})){
			reverse(all(line2));
			for(auto u : line2) line1.pb(u);
			line2.clear(); line2.push_back(x);
		}
		else line2.push_back(x);
	}
	vector<int> ans; ans.clear();
	if(line2.empty()){
		for(auto u : line1) ans.pb(u);
		return ans;
	}
	if(!connected(line1,line2)){
		if(sz(line1)<sz(line2)) swap(line1,line2);
		for(auto u : line1) ans.pb(u);
		return ans;
	}
	if(are_connected({line1.back()},{line2.back()})){
		for(auto u : line1) ans.pb(u);
		reverse(all(line2));
		for(auto u : line2) ans.pb(u);
		return ans;
	}
	
	int l = 0, r = sz(line1)-1;
	int x = l;
	deque<int> cur; cur.clear();
	for(int i = 0; i < sz(line1); i++){
		cur.pb(line1[i]);
		if(connected(cur,line2)){
			x=i; break;
		}
	}
	int y = l;
	for(int i = 0; i < sz(line2); i++){
		cur.pb(line1[i]);
		if(are_connected({line1[x]},vector<int>(line2))){
			y=i; break;
		}
	}
	for(int i = x+1; i<sz(line1); i++) ans.pb(line1[i]);
	for(int i = 0; i<=x; i++) ans.pb(line1[i]);
	for(int i = y; i < sz(line2); i++) ans.pb(line2[i]);
	for(int i = 0; i < y; i++) ans.pb(line2[i]);
    return ans;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:60:48: error: no matching function for call to 'std::vector<int>::vector(std::deque<int>&)'
   60 |   if(are_connected({line1[x]},vector<int>(line2))){
      |                                                ^
In file included from /usr/include/c++/10/vector:67,
                 from longesttrip.h:1,
                 from longesttrip.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:653:2: note: candidate: 'template<class _InputIterator, class> std::vector<_Tp, _Alloc>::vector(_InputIterator, _InputIterator, const allocator_type&) [with _InputIterator = _InputIterator; <template-parameter-2-2> = <template-parameter-1-2>; _Tp = int; _Alloc = std::allocator<int>]'
  653 |  vector(_InputIterator __first, _InputIterator __last,
      |  ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:653:2: note:   template argument deduction/substitution failed:
longesttrip.cpp:60:48: note:   candidate expects 3 arguments, 1 provided
   60 |   if(are_connected({line1[x]},vector<int>(line2))){
      |                                                ^
In file included from /usr/include/c++/10/vector:67,
                 from longesttrip.h:1,
                 from longesttrip.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:625:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::initializer_list<_Tp>, const allocator_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<int>]'
  625 |       vector(initializer_list<value_type> __l,
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:625:43: note:   no known conversion for argument 1 from 'std::deque<int>' to 'std::initializer_list<int>'
  625 |       vector(initializer_list<value_type> __l,
      |              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:607:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>&&, const allocator_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<int>]'
  607 |       vector(vector&& __rv, const allocator_type& __m)
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:607:7: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:589:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>&&, const allocator_type&, std::false_type) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<int>; std::false_type = std::integral_constant<bool, false>]'
  589 |       vector(vector&& __rv, const allocator_type& __m, false_type)
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:589:7: note:   candidate expects 3 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:585:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>&&, const allocator_type&, std::true_type) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<int>; std::true_type = std::integral_constant<bool, true>]'
  585 |       vector(vector&& __rv, const allocator_type& __m, true_type) noexcept
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:585:7: note:   candidate expects 3 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:575:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(const std::vector<_Tp, _Alloc>&, const allocator_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<int>]'
  575 |       vector(const vector& __x, const allocator_type& __a)
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:575:7: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:572:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>&&) [with _Tp = int; _Alloc = std::allocator<int>]'
  572 |       vector(vector&&) noexcept = default;
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:572:14: note:   no known conversion for argument 1 from 'std::deque<int>' to 'std::vector<int>&&'
  572 |       vector(vector&&) noexcept = default;
      |              ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:553:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(const std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]'
  553 |       vector(const vector& __x)
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:553:28: note:   no known conversion for argument 1 from 'std::deque<int>' to 'const std::vector<int>&'
  553 |       vector(const vector& __x)
      |              ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:522:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const value_type&, const allocator_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::size_type = long unsigned int; std::vector<_Tp, _Alloc>::value_type = int; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<int>]'
  522 |       vector(size_type __n, const value_type& __value,
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:522:7: note:   candidate expects 3 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:510:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const allocator_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::size_type = long unsigned int; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<int>]'
  510 |       vector(size_type __n, const allocator_type& __a = allocator_type())
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:510:24: note:   no known conversion for argument 1 from 'std::deque<int>' to 'std::vector<int>::size_type' {aka 'long unsigned int'}
  510 |       vector(size_type __n, const allocator_type& __a = allocator_type())
      |              ~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:497:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(const allocator_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<int>]'
  497 |       vector(const allocator_type& __a) _GLIBCXX_NOEXCEPT
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:497:36: note:   no known conversion for argument 1 from 'std::deque<int>' to 'const allocator_type&' {aka 'const std::allocator<int>&'}
  497 |       vector(const allocator_type& __a) _GLIBCXX_NOEXCEPT
      |              ~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:487:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector() [with _Tp = int; _Alloc = std::allocator<int>]'
  487 |       vector() = default;
      |       ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:487:7: note:   candidate expects 0 arguments, 1 provided
longesttrip.cpp:48:13: warning: unused variable 'r' [-Wunused-variable]
   48 |  int l = 0, r = sz(line1)-1;
      |             ^