Compilare: user.cpp: In function ‘void daladreapta(std::vector<int>&, int)’: user.cpp:14:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i < a.size() - 1) ^ user.cpp: In function ‘void inmultestecu2(std::vector<int>&)’: user.cpp:32:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < a.size(); i++) ^ user.cpp:34:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (c.size() <= i){ c.push_back(0); } ^ user.cpp: In function ‘void ridicalapatrat(std::vector<int>&)’: user.cpp:47:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i <= (a.size() - 1) + (a.size() - 1); i++) ^ user.cpp:49:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i >= c.size()){ c.push_back(0); } ^ user.cpp:53:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (a.size()>j&&a.size()>i-j) ^ user.cpp:53:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (a.size()>j&&a.size()>i-j) ^ user.cpp: In function ‘void aduna(std::vector<int>&, std::vector<int>&)’: user.cpp:77:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < max(a.size(), b.size()); i++) ^ user.cpp:79:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (c.size() <= i){ c.push_back(0); } ^ user.cpp:80:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (a.size()>i) ^ user.cpp:84:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (b.size() > i) ^ user.cpp: In function ‘int main()’: user.cpp:113:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < c.size(); i++) ^