View Compilation Error

0_0_21474764_13197.cpp:1:2: error: invalid preprocessing directive #nclude
 #nclude<iostream>
  ^
0_0_21474764_13197.cpp: In function 'int main()':
0_0_21474764_13197.cpp:30:61: error: expected ')' before ';' token
                     dp[i][j]=(dp[i-1][j]+dp[i-1][j-a[i]]*0.5;
                                                             ^