Manthan, Codefest 16 |
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Yash is finally tired of computing the length of the longest Fibonacci-ish sequence. He now plays around with more complex things such as Fibonacci-ish potentials.
Fibonacci-ish potential of an array ai is computed as follows:
You are given an array ai of length n and q ranges from lj to rj. For each range j you have to compute the Fibonacci-ish potential of the array bi, composed using all elements of ai from lj to rj inclusive. Find these potentials modulo m.
The first line of the input contains integers of n and m (1 ≤ n, m ≤ 30 000) — the length of the initial array and the modulo, respectively.
The next line contains n integers ai (0 ≤ ai ≤ 109) — elements of the array.
Then follow the number of ranges q (1 ≤ q ≤ 30 000).
Last q lines contain pairs of indices li and ri (1 ≤ li ≤ ri ≤ n) — ranges to compute Fibonacci-ish potentials.
Print q lines, i-th of them must contain the Fibonacci-ish potential of the i-th range modulo m.
5 10
2 1 2 1 2
2
2 4
4 5
3
3
For the purpose of this problem define Fibonacci numbers as follows:
In the first query, the subarray [1,2,1] can be formed using the minimal set {1,2}. Thus, the potential of this subarray is 1*1+2*1=3.
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