Compilare: main.cpp: In function 'void zAlgorithm()': main.cpp:26:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < sir.size(); i++) ~~^~~~~~~~~~~~ main.cpp:33:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i + zBox[i] < sir.size() && sir[i + zBox[i]] == sir[zBox[i]]) ~~~~~~~~~~~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:59:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (zBox[i] == a.size()) ~~~~~~~~^~~~~~~~~~~ main.cpp:72:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < sol.size(); i++) ~~^~~~~~~~~~~~