View Compilation Error

0_0_19311592_15673.cpp: In function 'void work()':
0_0_19311592_15673.cpp:101:6: error: too few arguments to function 'int dfs(int, int)'
  dfs();
      ^
0_0_19311592_15673.cpp:78:5: note: declared here
 int dfs(int u, int flow)
     ^