Compilare: main.cpp: In function 'int main()': main.cpp:19:17: warning: variable 'minn' set but not used [-Wunused-but-set-variable] int n,k,minn,maxx,x,s=0,mid,sk=0,last,ans=0; ^~~~ main.cpp:19:22: warning: variable 'maxx' set but not used [-Wunused-but-set-variable] int n,k,minn,maxx,x,s=0,mid,sk=0,last,ans=0; ^~~~ main.cpp:19:33: warning: unused variable 'mid' [-Wunused-variable] int n,k,minn,maxx,x,s=0,mid,sk=0,last,ans=0; ^~~ main.cpp:19:37: warning: unused variable 'sk' [-Wunused-variable] int n,k,minn,maxx,x,s=0,mid,sk=0,last,ans=0; ^~ main.cpp:19:42: warning: unused variable 'last' [-Wunused-variable] int n,k,minn,maxx,x,s=0,mid,sk=0,last,ans=0; ^~~~