Compilare: user.cpp: In function ‘std::vector<int> KmpPrefix(std::string)’: user.cpp:13:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2, k = 0; i < strS.size(); i++) { ^ user.cpp: In function ‘std::vector<int> KMP(std::string, std::string, std::vector<int>)’: user.cpp:26:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1, k = 0; i < strMare.size(); i++) { ^ user.cpp:30:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (k == strMic.size() - 1) { ^ user.cpp: In function ‘int main()’: user.cpp:41:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out", "w", stdout); ^