Main.cc: In function 'int main()':
Main.cc:8:11: error: 'b' was not declared in this scope
int s[b],b,n;
^
Main.cc:11:14: error: 'a' was not declared in this scope
cin>>a[i];
^
Main.cc:13:5: error: 'a' was not declared in this scope
a[b]=a[n+1];
^
Main.cc:20:13: error: 'i' was not declared in this scope
cout<