Compilare: main.cpp: In function 'void zAlgorithm(int*)': main.cpp:24:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < str.size(); ++i) { ~~^~~~~~~~~~~~ main.cpp:28:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (right < str.size() && str[right] == str[right - left]) ~~~~~~^~~~~~~~~~~~ main.cpp:43:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (right < str.size() && str[right] == str[right - left]) ~~~~~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:65:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i <= a.size() - b.size(); ++i) { ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:75:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= b.size() / 2; ++i) ~~^~~~~~~~~~~~~~~