View Compilation Error

0_0_17638907_12629.cpp: In function 'bool dfs1(int, int)':
0_0_17638907_12629.cpp:27:46: error: too few arguments to function 'void dfs(int, int, int)'
             if(linker[v]==-1||dfs(linker[v],n)){
                                              ^
0_0_17638907_12629.cpp:7:6: note: declared here
 void dfs(int len,int num,int use){
      ^