Compilare: main.cpp: In function 'int euclid(int, int, int&, int&)': main.cpp:53:9: warning: unused variable 'cmmdc' [-Wunused-variable] 53 | int cmmdc=euclid(b,a%b,x0,y0); | ^~~~~ main.cpp: In function 'int main()': main.cpp:64:9: warning: unused variable 'd' [-Wunused-variable] 64 | int d=euclid(a,b,x,y); | ^ main.cpp: In function 'int euclid(int, int, int&, int&)': main.cpp:55:6: warning: control reaches end of non-void function [-Wreturn-type] 55 | y=x0-a/b*y0; | ~^~~~~~~~~~