CF1207 problem solution

D

Full array minus bad sequence

Bad sequence in three, inclusion and exclusion just fine

E

More interesting

\ (A = _ {I =. 1} ^ {100} \ {I \}, B = _ {I =. 1} ^ {100} \ {I \ CDOT 2 ^. 7 \} \) , so \ (A_i ~ xor ~ B_j \) pairwise disjoint

After the query twice XOR \ ((A, B) \) , \ (XOR ~ A ~ B \) can be \ (A_i \) and \ (B_j \) , \ (XOR A_i ~ ~ A \) as an answer

F

The original title