View Compilation Error

0_0_17548372_27366.cpp: In function 'int main()':
0_0_17548372_27366.cpp:59:30: error: expected ')' before ';' token
   memset(head,-1,sizeof(head);
                              ^
0_0_17548372_27366.cpp:60:27: error: expected ')' before ';' token
   memset(dfn,0,sizeof(dfn);
                           ^
0_0_17548372_27366.cpp:61:27: error: expected ')' before ';' token
   memset(low,0,sizeof(dfn);
                           ^
0_0_17548372_27366.cpp:62:27: error: expected ')' before ';' token
   memset(ins,0,sizeof(dfn);
                           ^
0_0_17548372_27366.cpp:63:30: error: expected ')' before ';' token
   memset(belong,0,sizeof(dfn);
                              ^