View Compilation Error

0_0_32466785_10201.cpp: In function 'int main()':
0_0_32466785_10201.cpp:12:40: error: invalid types 'int[int]' for array subscript
   for(int i=1;i<=n;++i) scanf("%d",&t[i]);
                                        ^
0_0_32466785_10201.cpp:18:45: error: 'a' was not declared in this scope
     dp[i%2][j]=dp[(i-1)%2][j]+dp[(i-1)%2][j^a[i]];
                                             ^