View Compilation Error

0_0_38767786_20823.cpp:32:1: error: 'boolvis' does not name a type; did you mean 'bool'?
   32 | boolvis[N];
      | ^~~~~~~
      | bool
0_0_38767786_20823.cpp: In function 'int solve()':
0_0_38767786_20823.cpp:53:16: error: 'vis' was not declared in this scope
   53 |         memset(vis, 0, sizeof(vis));
      |                ^~~