Borderou de evaluare (job #482089)

Compilare: user.cpp: In function 'int verifpalindrom(std::string)': user.cpp:5:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function 'int main()': user.cpp:22:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:26:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:37:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:41:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]