/in/foo.cc: In function 'int main()':
/in/foo.cc:15:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   15 |                 ans=max(ans,dp[i]);
      |                 ^~~
      |                 abs
/in/foo.cc:17:15: error: 'ans' was not declared in this scope; did you mean 'abs'?
   17 |         cout<<ans;
      |               ^~~
      |               abs