Compilare: main.cpp: In function 'void gcd(long long int, long long int, long long int&, long long int&)': main.cpp:54:12: warning: unused variable 'y' [-Wunused-variable] 54 | int x=y0,y=x0-(a/b)*y0; | ^ main.cpp: In function 'int main()': main.cpp:83:12: warning: unused variable 'x' [-Wunused-variable] 83 | for(auto x:a) | ^ main.cpp:98:17: 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] 98 | for(int i=0; i<rez.size(); i++) { | ~^~~~~~~~~~~