Compilare: main.cpp: In function 'int main()': main.cpp:8:29: warning: unused variable 'r' [-Wunused-variable] 8 | int ni,nz,a,p,j,q=0,P=1,r=0,aux,aux2,inv1=0,inv2=0,sem1=0,sem2=0,n1,nca,n2,ncb; | ^ main.cpp:44:30: warning: 'ncb' may be used uninitialized [-Wmaybe-uninitialized] 44 | fo<<nca<<endl<<n1<<endl<<ncb<<endl<<n2; | ^~~ main.cpp:8:80: note: 'ncb' was declared here 8 | int ni,nz,a,p,j,q=0,P=1,r=0,aux,aux2,inv1=0,inv2=0,sem1=0,sem2=0,n1,nca,n2,ncb; | ^~~