Eroare de compilare: user.cpp:4:14: warning: character constant too long for its type [enabled by default] ifstream fin('perechi.in'); ^ user.cpp:5:15: warning: character constant too long for its type [enabled by default] ofstream fout('perechi.out'); ^ user.cpp:3:1: error: expected ‘;’ before ‘int’ int n; ^ user.cpp:4:26: error: invalid conversion from ‘int’ to ‘const char*’ [-fpermissive] ifstream fin('perechi.in'); ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:69:0, from user.cpp:1: /usr/include/c++/4.8/fstream:467:7: error: initializing argument 1 of ‘std::basic_ifstream<_CharT, _Traits>::basic_ifstream(const char*, std::ios_base::openmode) [with _CharT = char; _Traits = std::char_traits<char>; std::ios_base::openmode = std::_Ios_Openmode]’ [-fpermissive] basic_ifstream(const char* __s, ios_base::openmode __mode = ios_base::in) ^ user.cpp:5:28: error: invalid conversion from ‘int’ to ‘const char*’ [-fpermissive] ofstream fout('perechi.out'); ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:69:0, from user.cpp:1: /usr/include/c++/4.8/fstream:640:7: error: initializing argument 1 of ‘std::basic_ofstream<_CharT, _Traits>::basic_ofstream(const char*, std::ios_base::openmode) [with _CharT = char; _Traits = std::char_traits<char>; std::ios_base::openmode = std::_Ios_Openmode]’ [-fpermissive] basic_ofstream(const char* __s, ^ user.cpp: In function ‘int combinari(int)’: user.cpp:15:24: error: too many arguments to function ‘int combinari(int)’ return (combinari(2-1,k)+combinari(2-1,k-1)); ^ user.cpp:7:5: note: declared here int combinari(int k) ^ user.cpp:15:43: error: too many arguments to function ‘int combinari(int)’ return (combinari(2-1,k)+combinari(2-1,k-1)); ^ user.cpp:7:5: note: declared here int combinari(int k) ^ user.cpp: In function ‘int main()’: user.cpp:19:6: warning: unused variable ‘i’ [-Wunused-variable] int i; ^