Compilare: main.cpp: In function 'int main()': main.cpp:24:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < s.length(); i += 8){ ~~^~~~~~~~~~~~ main.cpp:36:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < wrong.size();i++) ~~^~~~~~~~~~~~~~ main.cpp:40:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < s.length();i += 8){ ~~^~~~~~~~~~~~