View Compilation Error

0_0_22661061_9289.cpp:12:4: error: missing terminating " character
    scanf("%d,&a[i]),b[a[i]]=i;
    ^
0_0_22661061_9289.cpp: In function 'int main()':
0_0_22661061_9289.cpp:13:3: error: expected primary-expression before 'int'
   int now=n;
   ^
0_0_22661061_9289.cpp:14:11: error: 'now' was not declared in this scope
   while(b[now-1]<b[now] && now!=1) now=now-1;
           ^
0_0_22661061_9289.cpp:15:17: error: 'now' was not declared in this scope
   printf("%d\n",now-1/);
                 ^
0_0_22661061_9289.cpp:15:23: error: expected primary-expression before ')' token
   printf("%d\n",now-1/);
                       ^