Submit | All submissions | Best solutions | Back to list |
UPDATEIT - Update the array ! |
You have an array containing n elements initially all 0. You need to do a number of update operations on it. In each update you specify l, r and val which are the starting index, ending index and value to be added. After each update, you add the 'val' to all elements from index l to r. After 'u' updates are over, there will be q queries each containing an index for which you have to print the element at that index.
Input
First line consists of t, the number of test cases. (1 <= t <= 10)
Each test case consists of "n u", number of elements in the array and the number of update operations, in the first line (1 <= n <= 10000 and 1 <= u <= 100000)
Then follow u lines each of the format "l r val" (0 <= l, r < n, 0 <= val <=10000)
Next line contains q, the number of queries. (1 <= q <= 10000)
Next q lines contain an index (0 <= index < n)
Output
For each test case, output the answers to the corresponding queries in separate lines.
Example
Input: 1
5 3
0 1 7
2 4 6
1 3 2
3
0
3
4
Output:
7
8
6
Added by: | Pandian |
Date: | 2013-10-15 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 |
Resource: | Own |
hide comments
|
||||||||||||||
2016-08-01 16:56:46
simple BIT. |
||||||||||||||
2016-07-28 20:24:00
easy and fun! |
||||||||||||||
2016-07-25 05:16:04
@jainromil26 I think using "bit" is using "Binary Indexed Tree(BIT)". Do you know binary indexed tree? If you don't know, please check on the Internet! |
||||||||||||||
2016-07-16 08:44:24 Romil Jain
Solved without using bit. O(n) solution. Someone please give a hint how to use bit? |
||||||||||||||
2016-07-12 18:20:21
My 100th on SPOJ! Used BIT. ;) |
||||||||||||||
2016-06-27 14:12:30
no need of segment tree!!! and BIT |
||||||||||||||
2016-06-27 14:09:06
yeee....USE FAST I/O scanf(),printf() in c... |
||||||||||||||
2016-06-18 19:54:22
Learnt something new !!! |
||||||||||||||
2016-05-27 13:10:04 KD
learned something new :P |
||||||||||||||
2016-05-18 17:29:12
TLE when using Segmented Tree + lazy propagation ! AC -> O(n) ...Prefix sum |