Compilare: main.cpp: In function 'bigInt operator+(bigInt, bigInt)': main.cpp:24:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'const long unsigned int' [-Wsign-compare] 24 | for(int i=0;i<max(y.cif.size(),x.cif.size());i++) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:26:13: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | if(i<x.cif.size())r+=x.cif[i]; | ~^~~~~~~~~~~~~ main.cpp:27:13: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | if(i<y.cif.size())r+=y.cif[i]; | ~^~~~~~~~~~~~~