View Compilation Error

0_0_17583003_3113.cpp: In function 'void dfs(int, int, int)':
0_0_17583003_3113.cpp:29:48: error: expected primary-expression before '/' token
                 if(flag)                       /
                                                ^
0_0_17583003_3113.cpp:30:21: error: expected primary-expression before 'return'
                     return;
                     ^
0_0_17583003_3113.cpp: In function 'int main()':
0_0_17583003_3113.cpp:59:35: error: 'memset' was not declared in this scope
         memset(vist,0,sizeof(vist));
                                   ^
0_0_17583003_3113.cpp:74:13: error: expected '}' at end of input
     return 0;
             ^