Compilare: main.cpp: In function 'std::vector<int> radix(std::vector<int>)': main.cpp:13:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < v.size(); j++) ~~^~~~~~~~~~ main.cpp:19:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < aux[1].size(); j++) ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:40:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size(); i++) ~~^~~~~~~~~~