View Compilation Error

0_0_28275197_26748.cpp: In function 'void dfs(int)':
0_0_28275197_26748.cpp:33:13: error: too many arguments to function 'void dfs(int)'
     dfs(y, x);
             ^
0_0_28275197_26748.cpp:25:6: note: declared here
 void dfs(int x) {
      ^