Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:30:20: warning: statement has no effect [-Wunused-value] tren[j]==i; ^ user.cpp:31:22: warning: statement has no effect [-Wunused-value] tren[j+1]==i; ^ user.cpp:32:22: warning: statement has no effect [-Wunused-value] tren[j+2]==i; ^ user.cpp:40:20: warning: statement has no effect [-Wunused-value] tren[j]==i; ^ user.cpp:41:22: warning: statement has no effect [-Wunused-value] tren[j+1]==i; ^ user.cpp:49:20: warning: statement has no effect [-Wunused-value] tren[j]==i; ^ user.cpp:56:23: warning: suggest parentheses around comparison in operand of ‘==’ [-Wparentheses] if(tren[i]==tren[i+1]==tren[i+2]) ^ user.cpp:77:25: warning: suggest parentheses around comparison in operand of ‘==’ [-Wparentheses] if (bilete[i][0]==bilete[i][1]==bilete[i][2]) ^ user.cpp:79:17: error: no match for ‘operator<<’ (operand types are ‘std::ifstream {aka std::basic_ifstream<char>}’ and ‘int’) fout<<bilete[i][0]<<" "<<bilete[i][1]<<" "<<bilete[i][2]; ^ user.cpp:79:17: note: candidates are: In file included from /usr/include/c++/4.8/string:52:0, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/basic_string.h:2753:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) operator<<(basic_ostream<_CharT, _Traits>& __os, ^ /usr/include/c++/4.8/bits/basic_string.h:2753:5: note: template argument deduction/substitution failed: user.cpp:79:30: note: ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘std::basic_ostream<_CharT, _Traits>’ fout<<bilete[i][0]<<" "<<bilete[i][1]<<" "<<bilete[i][2]; ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/ostream:471:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT) operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c) ^ /usr/include/c++/4.8/ostream:471:5: note: template argument deduction/substitution failed: