View Compilation Error

0_0_24668352_31413.cpp: In function 'int main()':
0_0_24668352_31413.cpp:39:29: error: 'else' without a previous 'if'
  while(scanf("%d",&n)!=EOF){else ++T;memset(head,0,sizeof(head));tot=0;memset(t,0,sizeof(t));
                             ^