Compilare: main.cpp: In function 'int main()': main.cpp:89:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < axaX.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:93:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < axaY.size(); j++) ~~^~~~~~~~~~~~~ main.cpp:97:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < special.size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp:102:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= axaX.size(); i++) ~~^~~~~~~~~~~~~~ main.cpp:104:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 1; j <= axaY.size(); j++) ~~^~~~~~~~~~~~~~