Compilare: main.cpp: In member function 'Huge Huge::operator+(const Huge&) const': main.cpp:25:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < result.v.size () - 1; i++) { ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:26:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i < v.size ()) ~~^~~~~~~~~~~ main.cpp:28:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i < a.v.size ()) ~~^~~~~~~~~~~~~ main.cpp: In member function 'Huge Huge::operator-(const Huge&) const': main.cpp:45:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < result.v.size () - 1; i++) { ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:46:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i < v.size ()) ~~^~~~~~~~~~~ main.cpp:48:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i < a.v.size ()) ~~^~~~~~~~~~~~~ main.cpp: In member function 'Huge Huge::operator*(const int&)': main.cpp:91:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size (); i++) { ~~^~~~~~~~~~~ main.cpp:93:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (result.v[i] / base && i == v.size () - 1) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:109:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("patrate2.in", "r", stdin); ^ main.cpp:110:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("patrate2.out", "w", stdout); ^