Compilare: user.cpp: In function ‘void daladreapta(std::vector<int>&, int)’: user.cpp:12:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i < a.size() - 1) ^ user.cpp: In function ‘void inmulteste(std::vector<int>&, std::vector<int>&)’: user.cpp:53:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i >= c.size()){ c.push_back(0); } ^ user.cpp:57:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (a.size()>j&&b.size()>i - j) ^ user.cpp:57:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (a.size()>j&&b.size()>i - j) ^ user.cpp: In function ‘void aduna(std::vector<int>&, std::vector<int>&, std::vector<int>&)’: user.cpp:86:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (c.size() <= i){ c.push_back(0); } ^ user.cpp:87:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (a.size()>i) ^ user.cpp:91:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (b.size() > i) ^ user.cpp: In function ‘int main()’: user.cpp:123:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < c.size(); ++i) ^