Compilare: user.cpp: In function ‘std::vector<int> aduna_unu(std::vector<int>)’: user.cpp:18:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<v.size(); i++) ^ user.cpp: In function ‘std::vector<int> scade_unu(std::vector<int>)’: user.cpp:28:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<v.size(); i++) ^ user.cpp: In function ‘std::vector<int> inmulteste_vectori(std::vector<int>, std::vector<int>)’: user.cpp:41:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1; i<=a.size() + b.size() - 1; i++) c.push_back(0); ^ user.cpp:43:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<a.size(); i++) ^ user.cpp:44:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<b.size(); j++) ^ user.cpp:47:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<c.size(); i++) { ^