GIVEAWAY - Give Away

You are given a 1-indexed array X, consisting of N integers, and a set of Q queries. There are two kinds of queries:

  1. 0 a b c
    Here you are required to return the number of elements with indices in [a,b] greater than or equal to c
  2. 1 a b
    Here you are required to change the ath element of array to b.

Input Format:

First line contains N, the number of elements in the array X. The next line contains N space separated integers representing the elements of X. The third line of input contains a single integer, Q, the number of queries. The next Q lines of input each contain queries of two kinds as described above.

Output Format:

Q lines with the ith line contains the answer for the ith query

Constraints:

1 ≤ N ≤ 5*10^5
1 ≤ Q ≤ 10^5
1 ≤ X[i] ≤ 10^9
1 ≤ a ≤ b ≤ N for query type 0
1 ≤ a ≤ 10^5, 1 < b ≤ 10^9 for query type 1
1 ≤ c ≤ 10^9

Example

Sample Input:
5
1 2 3 4 5
3
0 1 5 10
1 2 20
0 1 3 10

Sample Output:
0
1

Problem Setter: Pulkit Goel and Vidit Gupta


Added by:darkshadows
Date:2014-01-28
Time limit:1s-2s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ASM64

hide comments
2019-03-06 10:50:57
toolkit's output is wrong for this problem, don't get confused.
2019-01-17 20:02:17
are all the elements of array and the update values distinct?
2018-07-13 15:51:46
Array consists of distinct integers only...
2018-02-28 14:23:47
1.72s with sqrt decomposition
2017-11-29 20:32:55
Same as RACETIME
2016-01-13 07:18:40 kejriwal
new concept learnt :) !!! amazing problem :D
2016-01-02 10:51:48 ashish kumar
I am using segment tree+AVL tree and O(log^2N) for query and O(logN) for update. But its giving TLE on 10th test case. And also it got accepted on codechef.

Last edit: 2016-01-02 10:54:15
2014-10-05 16:55:00 pikku
Even using Segment tree Getting TLE @ 10th test case..
2014-07-18 21:46:30 Archit Jain
TLE using segmented tree

Last edit: 2014-07-18 21:51:44
2014-06-02 20:10:18 Bhavik
what ds to use?any suggestions...
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