View Compilation Error

0_0_39326906_23435.cpp: In function 'void dfs(int, int)':
0_0_39326906_23435.cpp:34:20: error: too few arguments to function 'void dfs(int, int)'
   34 |                 dfs(v);
      |                 ~~~^~~
0_0_39326906_23435.cpp:14:6: note: declared here
   14 | void dfs(int u,int fa)
      |      ^~~