Compilare: user.cpp: In function ‘void kmp_search()’: user.cpp:18:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( m + i < second.size() ) ^ user.cpp:22:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( i == first.size() - 1 ) ^ user.cpp: In function ‘int main(int, char**)’: user.cpp:86:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < poz.size(); ++i ) ^ user.cpp:85:9: warning: unused variable ‘dim’ [-Wunused-variable] int dim = poz.size() > 1000 ? 1000 : poz.size(); ^