Compilare: main.cpp: In function 'int main()': main.cpp:63:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 1; j < s1.length(); j ++) ~~^~~~~~~~~~~~~ main.cpp:69:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(kmp[j+1] > d.length()) ~~~~~~~~~^~~~~~~~~~~~ main.cpp:73:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(kmp[j] == d.length()) ~~~~~~~^~~~~~~~~~~~~