# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
637172 | Fidan | Thousands Islands (IOI22_islands) | C++17 | Compilation error | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#include <variant>
#include "islands.h"
using namespace std;
typedef long long ll;
const ll mod=1000002022;
variant<bool, vector<int>> find_journey(int n, int m, vector<int> u, vector<int> v){
if(n==2){
a=-1, b=-1, c=-1;
for(i=0; i<m; i++){
if(u[i]==0){
if(a==-1) a=i;
else b=i;
}
else c=i;
}
if(b==-1 || c==-1) return false;
return vector<int>({a, c, b, a, c, b});
}
return false;
}
Compilation message (stderr)
islands.cpp: In function 'std::variant<bool, std::vector<int, std::allocator<int> > > find_journey(int, int, std::vector<int>, std::vector<int>)': islands.cpp:9:3: error: 'a' was not declared in this scope 9 | a=-1, b=-1, c=-1; | ^ islands.cpp:9:9: error: 'b' was not declared in this scope 9 | a=-1, b=-1, c=-1; | ^ islands.cpp:9:15: error: 'c' was not declared in this scope 9 | a=-1, b=-1, c=-1; | ^ islands.cpp:10:7: error: 'i' was not declared in this scope 10 | for(i=0; i<m; i++){ | ^ islands.cpp:18:40: error: no matching function for call to 'std::vector<int>::vector(<brace-enclosed initializer list>)' 18 | return vector<int>({a, c, b, a, c, b}); | ^ In file included from /usr/include/c++/10/vector:67, from /usr/include/c++/10/functional:62, from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/10/algorithm:74, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65, from islands.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: islands.cpp:18:40: note: candidate expects 3 arguments, 1 provided 18 | return vector<int>({a, c, b, a, c, b}); | ^ In file included from /usr/include/c++/10/vector:67, from /usr/include/c++/10/functional:62, from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/10/algorithm:74, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65, from islands.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 '<brace-enclosed initializer list>' 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 '<brace-enclosed initializer list>' 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 '<brace-enclosed initializer list>' 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 '<brace-enclosed initializer list>' 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 '<brace-enclosed initializer list>' 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