Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:34:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < key_word.size(); i++) ^ user.cpp:53:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < key_word.size(); i++) ^ user.cpp:69:36: error: ‘i’ was not declared in this scope positions.emplace_back(int(i - key_word.size() + 1)); ^ user.cpp:72:54: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = int(key_word.size()); i < text.size(); i++) ^