View Compilation Error

0_0_24490727_24837.cpp:78:3: error: missing terminating " character
   scanf("%lld,&n);
   ^
0_0_24490727_24837.cpp: In function 'int main()':
0_0_24490727_24837.cpp:79:25: error: expected ')' before ';' token
   memset(a, 0, sizeof a);
                         ^