0_0_38556088_1535.cpp:32:8: error: conflicting declaration 'int v'
int u, v;
^
0_0_38556088_1535.cpp:14:5: note: previous declaration as 'int v [541]'
int v[N];
^
0_0_38556088_1535.cpp: In function 'int main()':
0_0_38556088_1535.cpp:48:17: error: cannot bind 'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
cin >> u >> v;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:40:0,
from 0_0_38556088_1535.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:872:5: note: initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = int [541]]'
operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
^
0_0_38556088_1535.cpp:49:21: error: invalid conversion from 'int*' to 'int' [-fpermissive]
add(u, v);
^
0_0_38556088_1535.cpp:7:6: note: initializing argument 2 of 'void add(int, int)'
void add(int u, int v)
^
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