View Compilation Error

0_0_32302864_7865.cpp:2:2: error: invalid preprocessing directive #nclude
 #nclude<cmath>
  ^
0_0_32302864_7865.cpp: In function 'int main()':
0_0_32302864_7865.cpp:14:30: error: 'sqrt' was not declared in this scope
         LL y=(LL)sqrt((p-1)/3);
                              ^