View Compilation Error

0_0_25978453_25307.cpp: In function 'int dfs(int)':
0_0_25978453_25307.cpp:9:24: error: expected primary-expression before '==' token
             else if(i% ==0 && i>0) printf(" ");  //此处的格式也要注意
                        ^
0_0_25978453_25307.cpp: In function 'int main()':
0_0_25978453_25307.cpp:34:31: error: expected primary-expression before ')' token
     while(cin>>n>>L && n && L)){
                               ^