Compilare: user.cpp: In function ‘int main()’: user.cpp:51:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < aux.size(); i ++) ~~^~~~~~~~~~~~ user.cpp:62:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = start; i < ctcmax.size(); i ++) { ~~^~~~~~~~~~~~~~~ user.cpp:63:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < sol.size(); j ++) { ~~^~~~~~~~~~~~