Compilare: user.cpp: In function ‘std::vector<int> aduna(std::vector<int>, std::vector<int>)’: user.cpp:10:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0, t = 0; i < termen1.size() || i < termen2.size() || t; i++, t /= 10) { ^ user.cpp:10:67: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0, t = 0; i < termen1.size() || i < termen2.size() || t; i++, t /= 10) { ^ user.cpp:11:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] t += (i < termen1.size()? termen1[i] : 0) + (i < termen2.size()? termen2[i] : 0); ^ user.cpp:11:71: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] t += (i < termen1.size()? termen1[i] : 0) + (i < termen2.size()? termen2[i] : 0); ^ user.cpp: In function ‘std::vector<int> scade(std::vector<int>, std::vector<int>)’: user.cpp:39:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0, t = 0; i < desc.size(); i++, t /= 10) { ^ user.cpp:40:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] t += desc[i] - (i < scz.size()? scz[i] : 0); ^ user.cpp: In function ‘int main()’: user.cpp:53:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("quadratum.out", "w", stdout); ^