/in/foo.cc: In function 'int main()':
/in/foo.cc:94:6: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
      for(int i=1;i<=n;i++)
      ^~~
/in/foo.cc:97:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
     for(int c=1;c<=6;c++)
     ^~~
/in/foo.cc:60:23: warning: variable 'ans' set but not used [-Wunused-but-set-variable]
  double l=0,r=INF,mid,ans;
                       ^~~