Compilare: user.cpp: In function ‘void inm(const Huge&, const int&, Huge&)’: user.cpp:53:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < A.size(); i++) { ^ user.cpp: In function ‘void scad(const Huge&, const Huge&, Huge&)’: user.cpp:68:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < max(A.size(), B.size()); i++) { ^ user.cpp:69:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i >= A.size()) a = 0; ^ user.cpp:71:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i >= B.size()) b = 0; ^ user.cpp: In function ‘int main()’: user.cpp:94:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(inputFile.c_str(), "r", stdin); ^ user.cpp:95:45: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(outputFile.c_str(), "w", stdout); ^ user.cpp:98:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^