Compilare: main.cpp: In function 'void piFunction(const string&, int*)': main.cpp:12:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < pattern.size(); ++i){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void KMP(const string&, const string&, int*)': main.cpp:33:29: warning: argument to 'sizeof' in 'void* memset(void*, int, size_t)' call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess] memset(piText, 0, sizeof(piText)); ^ main.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < text.size(); ++i){ ~~^~~~~~~~~~~~~ main.cpp:49:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(piText[i] == pattern.size() - 1){ ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:58:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < ans.size(); ++i){ ~~^~~~~~~~~~~~