Compilare: main.cpp: In function 'int main()': main.cpp:83:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < axaX.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:87:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < axaY.size(); j++) ~~^~~~~~~~~~~~~ main.cpp:91:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < special.size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp:96:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i <= axaX.size() + 1; i++) ~~^~~~~~~~~~~~~~~~~~ main.cpp:98:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 2; j <= axaY.size() + 1; j++) ~~^~~~~~~~~~~~~~~~~~