Compilare: main.cpp: In function 'void compute_lsp(int*, std::__cxx11::string)': main.cpp:26:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<to_compute.length()) ~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'std::__cxx11::string kmp(std::__cxx11::string, std::__cxx11::string)': main.cpp:57:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<main.length()) ~^~~~~~~~~~~~~~ main.cpp:64:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(p==pattern.length()) ~^~~~~~~~~~~~~~~~~~ main.cpp:68:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<main.length() &&main[i]!=pattern[p]) ~^~~~~~~~~~~~~~