Compilare: main.cpp: In function 'int main()': main.cpp:29:22: warning: unused variable 's' [-Wunused-variable] int k,a[100001],i,m,s,contor,n,v; ^ main.cpp:29:24: warning: variable 'contor' set but not used [-Wunused-but-set-variable] int k,a[100001],i,m,s,contor,n,v; ^~~~~~ main.cpp:29:31: warning: unused variable 'n' [-Wunused-variable] int k,a[100001],i,m,s,contor,n,v; ^ main.cpp:29:33: warning: unused variable 'v' [-Wunused-variable] int k,a[100001],i,m,s,contor,n,v; ^ main.cpp: In function 'int prim(int)': main.cpp:24:1: warning: control reaches end of non-void function [-Wreturn-type] } ^