View Compilation Error

0_0_22122410_11662.cpp: In function 'int main()':
0_0_22122410_11662.cpp:9:33: error: 'ans' was not declared in this scope
   cout<<fixed<<setprecision(2)<<ans<<endl;
                                 ^
0_0_22122410_11662.cpp:11:10: error: expected '}' at end of input
  return 0;
          ^