Main.cc: In function 'int main()':
Main.cc:7:6: error: 'n' was not declared in this scope
cin>>n;
^
Main.cc:8:8: warning: unused variable 's' [-Wunused-variable]
int s,b,n,m,i,j=2;
^
Main.cc:8:14: warning: unused variable 'm' [-Wunused-variable]
int s,b,n,m,i,j=2;
^