View Compilation Error

0_0_38849423_21183.cpp: In function 'int lis()':
0_0_38849423_21183.cpp:16:53: error: 'higi' was not declared in this scope; did you mean 'high'?
   16 |             int j = lower_bound(d + 1, d + len + 1, higi[i]) - d;
      |                                                     ^~~~
      |                                                     high