Compilare: main.cpp: In function 'void divideIntoWords(std::__cxx11::string, int)': main.cpp:12:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i <= s.size(); i++) ~~^~~~~~~~~~~ main.cpp:15:53: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (start >= 0 && (!isalpha(s[i]) || i == s.size())) { ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:33:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 1; j < paragraph[i].size(); j++) ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:34:80: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((currentLength + paragraph[i][j].size() + (j - startPosition)) <= lineSize) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ main.cpp:59:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = startPosition; j < paragraph[i].size(); j++) ~~^~~~~~~~~~~~~~~~~~~~~