KQUERYO - K-Query Online
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 a, b, c representing a k-query. You should do the following:
- i = a xor last_ans
- j = b xor last_ans
- k = c xor last_ans
Where last_ans = the answer to the last query (for the first query it's 0).
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: 6 8 9 3 5 1 9 5 2 3 5 3 3 7 0 0 11 0 0 2 3 7 4 Output: 1 1 0 0 2
[Edited by EB]
There are invalid queries. Assume the following:- if i < 1: i = 1
- if j > n: j = n
- if i > j: ans = 0
hide comments
[Rampage] Blue.Mary:
2016-01-21 04:30:15
OK. The test data seems not satisfy the conditions mentioned in problem description. I assume the following:
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spoj2121:
2015-12-27 18:45:27
merge sort tree..with fast I/O = 3rd fastest solution ^_^ |
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khoonicoder:
2015-09-02 04:38:34
Merge Sort Tree gives AC in first time while Persistent Segment Tree giving the Segmentation Fault
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Pulkit Singhal:
2015-09-01 11:22:33
Can someone please explain sample test case 4th and 5th query
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mehmetin:
2015-05-08 17:48:26
Sample test cases are correct. There was a broken input issue, that was the reason of TLE's. Last edit: 2015-05-14 17:28:54 |
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kuldeep yadav:
2015-05-07 06:37:04
Accepted in 1 try |
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kuldeep yadav:
2015-05-07 05:58:21
Test case is wrong Last edit: 2015-05-07 06:36:27 |
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js2072:
2015-04-30 18:42:10
isn't 0 0 0 1 1 the right answer for the test case? |
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Rajat De:
2015-04-24 16:07:07
why is O(sqrt(n) ) per query failing ? it should pass |
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adamant:
2015-04-21 12:40:20
Are you kidding?! simply return 0 gets AC :| |
Added by: | amirmd76 |
Date: | 2015-04-17 |
Time limit: | 0.200s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All |