Compilare: user.cpp: In static member function 'static std::vector<int, std::allocator<int> > PatternMatcher::computeKmpPrefix(const std::string&)': user.cpp:25: warning: comparison between signed and unsigned integer expressions user.cpp: In static member function 'static std::vector<int, std::allocator<int> > PatternMatcher::kmpSearch(const std::string&, const std::string&)': user.cpp:56: warning: comparison between signed and unsigned integer expressions user.cpp:58: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:94: warning: comparison between signed and unsigned integer expressions