Compilare: main.cpp: In function 'void pattern()': main.cpp:15:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(z<pat.size()) ~^~~~~~~~~~~ main.cpp:20:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (z<pat.size() and pat[z]==pat[d1]) ~^~~~~~~~~~~ main.cpp: In function 'void KMP()': main.cpp:49:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==pat.size()) ~^~~~~~~~~~~~