Compilare: user.cpp: In function ‘int main()’: user.cpp:24:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < line.size(); ++i) { ^ user.cpp:40:53: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < codesize - 1 && i < text.size(); ++i) { ^ user.cpp:44:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = codesize - 1; i < text.size(); ++i) { ^