0_0_38285347_31202.cpp: In function 'void solve()':
0_0_38285347_31202.cpp:25:9: error: expected unqualified-id before '[' token
auto [x1, y1] = a[i];
^
0_0_38285347_31202.cpp:26:9: error: expected unqualified-id before '[' token
auto [x2, y2] = a[j];
^
0_0_38285347_31202.cpp:27:13: error: 'x1' was not declared in this scope
int x3 = x1 + y1 - y2, y3 = x2 + y1 - x1;
^
0_0_38285347_31202.cpp:27:18: error: 'y1' was not declared in this scope
int x3 = x1 + y1 - y2, y3 = x2 + y1 - x1;
^
0_0_38285347_31202.cpp:27:23: error: 'y2' was not declared in this scope
int x3 = x1 + y1 - y2, y3 = x2 + y1 - x1;
^
0_0_38285347_31202.cpp:28:13: error: 'x2' was not declared in this scope
int x4 = x2 + y1 - y2, y4 = x2 + y2 - x1;
^
0_0_38285347_31202.cpp:29:17: error: 'y3' was not declared in this scope
if (mp[ {x3, y3}] and mp[ {x4, y4}]) ans++;
^
0_0_38285347_31202.cpp:29:10: error: no match for 'operator[]' (operand types are 'std::map<std::pair<long long int, long long int>, long long int>' and '<brace-enclosed initializer list>')
if (mp[ {x3, y3}] and mp[ {x4, y4}]) ans++;
^
0_0_38285347_31202.cpp:29:10: note: candidates are:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:61:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:80,
from 0_0_38285347_31202.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:491:7: note: std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::pair<long long int, long long int>; _Tp = long long int; _Compare = std::less<std::pair<long long int, long long int> >; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = long long int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<long long int, long long int>]
operator[](const key_type& __k)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:491:7: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const key_type& {aka const std::pair<long long int, long long int>&}'
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:511:7: note: std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](std::map<_Key, _Tp, _Compare, _Alloc>::key_type&&) [with _Key = std::pair<long long int, long long int>; _Tp = long long int; _Compare = std::less<std::pair<long long int, long long int> >; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = long long int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<long long int, long long int>]
operator[](key_type&& __k)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:511:7: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::map<std::pair<long long int, long long int>, long long int>::key_type&& {aka std::pair<long long int, long long int>&&}'
0_0_38285347_31202.cpp:29:35: error: 'y4' was not declared in this scope
if (mp[ {x3, y3}] and mp[ {x4, y4}]) ans++;
^
0_0_38285347_31202.cpp:29:28: error: no match for 'operator[]' (operand types are 'std::map<std::pair<long long int, long long int>, long long int>' and '<brace-enclosed initializer list>')
if (mp[ {x3, y3}] and mp[ {x4, y4}]) ans++;
^
0_0_38285347_31202.cpp:29:28: note: candidates are:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:61:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:80,
from 0_0_38285347_31202.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:491:7: note: std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::pair<long long int, long long int>; _Tp = long long int; _Compare = std::less<std::pair<long long int, long long int> >; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = long long int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<long long int, long long int>]
operator[](const key_type& __k)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:491:7: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const key_type& {aka const std::pair<long long int, long long int>&}'
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:511:7: note: std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](std::map<_Key, _Tp, _Compare, _Alloc>::key_type&&) [with _Key = std::pair<long long int, long long int>; _Tp = long long int; _Compare = std::less<std::pair<long long int, long long int> >; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = long long int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<long long int, long long int>]
operator[](key_type&& __k)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:511:7: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::map<std::pair<long long int, long long int>, long long int>::key_type&& {aka std::pair<long long int, long long int>&&}'
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