Alice are given an array A[1..N] with N numbers.Now Alice want to build an array B by a parameter K as following rules:. Initially, the array B is empty. Consider each interval in array A. If the length of this interval is less than K, then ignore this interval. Otherwise, find the K-th largest number in this interval and add this number into array B.In fact Alice doesn't care each element in the array B. She only wants to know the M-th largest element in the array B. Please help her to fi nd this number.
Alice are given an array A[1..N] with N numbers. Now Alice want to build an array B by a parameter K as following rules: Initially, the array B is empty. Consider each interval in array A. If the length of this interval is less than K, then ignore this interval. Otherwise, find the K-th largest number in this interval and add this number into array B. In fact Alice doesn't care each element in the array B. She only wants to know the M-th largest element in the array B. Please help her to fi nd this number.