Compilare: main.cpp: In function 'void problem2(int, int, int, int, std::vector<int>*, std::vector<long double>&)': main.cpp:52:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < cul[0].size() && j < cul[1].size()){ ~~^~~~~~~~~~~~~~~ main.cpp:52:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < cul[0].size() && j < cul[1].size()){ ~~^~~~~~~~~~~~~~~ main.cpp:68:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < cul[0].size()){ ~~^~~~~~~~~~~~~~~ main.cpp:75:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j < cul[1].size()){ ~~^~~~~~~~~~~~~~~ main.cpp:99:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 2; i < fact.size(); i++) ~~^~~~~~~~~~~~~