문제 A binary array is an array which each element can be either 0 or 1. Aleka has a binary array B or length N. The elements of B are indexed from 1 to N. Aleka will play with her array. She will run Q queries one after another. Each query can be one of the following type : FLIP L R: Flip all bits of B from index L to R, inclusive. Flipping bit is changing the value of a bit from 0 to 1, or from ..