View Compilation Error

0_0_28572969_27290.cpp: In function 'void dfs(int, int)':
0_0_28572969_27290.cpp:53:22: error: expected primary-expression before ',' token
                 for( , ,){
                      ^
0_0_28572969_27290.cpp:53:24: error: expected primary-expression before ',' token
                 for( , ,){
                        ^
0_0_28572969_27290.cpp:53:25: error: expected primary-expression before ')' token
                 for( , ,){
                         ^
0_0_28572969_27290.cpp:60:27: error: expected ')' before ';' token
                 ok[u]=true;
                           ^