View Compilation Error

0_0_38056189_31586.cpp: In function 'void dfs(int, int)':
0_0_38056189_31586.cpp:22:7: error: too few arguments to function 'void dfs(int, int)'
   dfs()
       ^
0_0_38056189_31586.cpp:14:6: note: declared here
 void dfs(int u,int v)
      ^
0_0_38056189_31586.cpp: In function 'int main()':
0_0_38056189_31586.cpp:42:7: error: too few arguments to function 'void dfs(int, int)'
   dfs()
       ^
0_0_38056189_31586.cpp:14:6: note: declared here
 void dfs(int u,int v)
      ^