View Compilation Error

0_0_16012878_11784.cpp: In function 'int main()':
0_0_16012878_11784.cpp:31:9: error: expected unqualified-id before 'not' token
     int not = S&(~(1 << j));
         ^
0_0_16012878_11784.cpp:32:16: error: expected primary-expression before ']' token
     dp[now][not] = max(dp[now][not], dp[pre][S]);
                ^
0_0_16012878_11784.cpp:32:35: error: expected primary-expression before ']' token
     dp[now][not] = max(dp[now][not], dp[pre][S]);
                                   ^