/in/foo.cc: In function 'double set3(int, int)':
/in/foo.cc:17:38: error: 'set2' was not declared in this scope
   ans=min(ans,set2(k-i,(100-i*9)*x3+d));
                                      ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:40:29: error: 'setpricision' was not declared in this scope
  cout<<fixed<<setpricision(3)<<set1(k)<<endl;
                             ^