View Compilation Error

0_0_39833840_24701.cpp: In function 'int get_node(int, int)':
0_0_39833840_24701.cpp:34:5: error: 'returm' was not declared in this scope
   34 |     returm x;
      |     ^~~~~~
0_0_39833840_24701.cpp: In function 'void build_tree()':
0_0_39833840_24701.cpp:41:5: error: 'h' was not declared in this scope; did you mean 'wh'?
   41 |     h[n]=INF;height[0]=INF;
      |     ^
      |     wh
0_0_39833840_24701.cpp:47:13: error: 'eight' was not declared in this scope; did you mean 'height'?
   47 |             eight[tot]=st[top-1];
      |             ^~~~~
      |             height
0_0_39833840_24701.cpp: In function 'void dfs(int)':
0_0_39833840_24701.cpp:75:13: error: 'ret' was not declared in this scope
   75 |     int p=0;ret=0;
      |             ^~~