CF368B.Sereja and Suffixes

传统题 时间 2000 ms 内存 256 MiB 5 尝试 1 已通过 1 标签

Sereja and Suffixes

Sereja has an array a, consisting of n integers a1, a2, ..., a**n. The boy cannot sit and do nothing, he decided to study an array. Sereja took a piece of paper and wrote out m integers l1, l2, ..., l**m (1 ≤ l**i ≤ n). For each number l**i he wants to know how many distinct numbers are staying on the positions l**i, l**i + 1, ..., n. Formally, he want to find the number of distinct numbers among ali, ali + 1, ..., a**n.?

Sereja wrote out the necessary array elements but the array was so large and the boy was so pressed for time. Help him, find the answer for the described question for each l**i.

Input

The first line contains two integers n and m (1 ≤ n, m ≤ 105). The second line contains n integers a1, a2, ..., a**n (1 ≤ a**i ≤ 105) — the array elements.

Next m lines contain integers l1, l2, ..., l**m. The i-th line contains integer l**i (1 ≤ l**i ≤ n).

Output

Print m lines — on the i-th line print the answer to the number l**i.

Samples

10 10
1 2 3 4 1 2 3 4 100000 99999
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