Borderou de evaluare (job #420049)

Compilare: user.cpp: In function ‘void read()’: user.cpp:88:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:106:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘int main()’: user.cpp:124:25: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: [enabled by default] /usr/include/c++/4.6/bits/postypes.h:194:7: note: candidate 1: std::fpos<_StateT> std::fpos<_StateT>::operator-(std::streamoff) const [with _StateT = __mbstate_t, std::fpos<_StateT> = std::fpos<__mbstate_t>, std::streamoff = long long int] user.cpp:124:25: note: candidate 2: operator-(std::streamoff {aka long long int}, int) <built-in>