문제
4 seconds, 128 MB, 160 points Young Luka is about to enter a house with the evil witch Marica inside. As soon as he enters the house, she asks him questions about her array of N numbers. Luka fearfully asks for a clarification of the questions. Marica explains to him that each query consists of two integers L and R which represent the positions of a contiguous sub-array in her array. It is Luka’s task to answer for each query what the longest contiguous sub-array of that contigu- ous sub-array (it can be the entire sub-array) having the property of being magical. An array is called magical if all the values are between the values of the first and last number in that array. For example, [1 3 1 2 4] is magical, the same as [4 1 1 2 1], whereas [3 3 4 1] is not magical.
입력
The first line of input contains the integer N (1 ⩽N ⩽500 000), the number of numbers in the array. The second line contains N integers ai (1 ⩽ai ⩽109). The third line contains the integer Q (1 ⩽Q ⩽500 000), the number of queries. Each of the following Q lines contains two integers, L and R (1 ⩽L ⩽R ⩽N), representing the sub-array from the query.
출력
The ith line of output must contain a single integer – the answer to the ith query.
예제 입력 1
5
5 4 3 3 2
3
1 2
1 1
2 4
예제 출력 1
2
1
3
예제 입력 2
6
6 6 5 1 6 2
3
4 5
4 6
1 4
예제 출력 2
2
2
4
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