View Compilation Error

0_0_18279207_18762.cpp: In function 'int main()':
0_0_18279207_18762.cpp:48:3: error: expected ';' before 'int'
   int index = lower_bound(num,num+p, x) - num;
   ^
0_0_18279207_18762.cpp:49:25: error: 'index' was not declared in this scope
   printf("%I64d\n", num[index]);
                         ^