KQUERY - K-query
English | Vietnamese |
Given a sequence of n numbers a1, a2, ..., an and a number of k- queries. A k-query is a triple (i, j, k) (1 ≤ i ≤ j ≤ n). For each k-query (i, j, k), you have to return the number of elements greater than k in the subsequence ai, ai+1, ..., aj.
Input
- Line 1: n (1 ≤ n ≤ 30000).
- Line 2: n numbers a1, a2 ... an (1 ≤ ai ≤ 109).
- Line 3: q (1 ≤ q ≤ 200000), the number of k- queries.
- In the next q lines, each line contains 3 numbers i, j, k representing a k-query (1 ≤ i ≤ j ≤ n, 1 ≤ k ≤ 109).
Output
- For each k-query (i, j, k), print the number of elements greater than k in the subsequence ai, ai+1 ... aj in a single line.
Example
Input 5 5 1 2 3 4 3 2 4 1 4 4 4 1 5 2 Output 2 0 3
hide comments
chainsn4tcherr:
2022-02-22 22:06:25
merge sort tree + binary search = (: |
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congdanh2504:
2022-02-17 01:39:27
sqrt decomposition + binary search => AC |
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ryuuk:
2022-02-07 08:42:10
Solved with BIT + offline queries |
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joynal_67:
2022-01-13 13:29:46
Use Marge Sort Tree + Binary Search |
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psz2007:
2022-01-13 07:15:05
Use Mo's Algorithm with time complexity O(n\sqrt{n}) and AC !!! |
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mahbubkuet08:
2021-11-08 19:12:32
Getting WA. Any clue? |
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adam____:
2021-08-25 14:16:42
used merge sort tree + bin search |
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challenger_76:
2021-08-18 07:52:18
codencode op
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yasser1110:
2021-07-21 10:51:25
@erne1309 interesting approach. Can you provide details? |
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erne1309:
2021-07-11 06:10:09
ft+sort :) Last edit: 2021-07-11 06:11:31 |
Added by: | Jimmy |
Date: | 2008-10-26 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ERL JS-RHINO NODEJS PERL6 VB.NET |
Resource: | Gomoku |