Submit | All submissions | Best solutions | Back to list |
DIVCNT2 - Counting Divisors (square) |
Let be the number of positive divisors of .
For example, , and .
Let
Given , find .
Input
First line contains (), the number of test cases.
Each of the next lines contains a single integer . ()
Output
For each number , output a single line containing .
Example
Input
5
1
2
3
10
100
Output
1
4
7
48
1194
Explanation for Input
-
Information
There are 6 Input files.
- Input #1: , TL = 1s.
- Input #2: , TL = 20s.
- Input #3: , TL = 20s.
- Input #4: , TL = 20s.
- Input #5: , TL = 20s.
- Input #6: , TL = 20s.
My C++ solution runs in 5.3 sec. (total time)
Source Limit is 6 KB.
Added by: | Min_25 |
Date: | 2014-06-29 |
Time limit: | 1s-20s |
Source limit: | 6144B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 GOSU |
hide comments
|
|||||
2024-01-01 06:28:42 [Lakshman]
@Ishan I was not active on SPOJ for long, Yes, I was wrong in calculating the complexity Min_25 is right. |
|||||
2023-04-10 04:15:39 Ishan
@Lakshman If you have really solved it in you will be making a grand new breakthrough worthy of Turing Award many times over. I am sure you have some miscalculation. |
|||||
2023-03-29 17:20:27 Ishan
Is supposed to pass ? EDIT: I guess for both DIVCNT2 and DIVCNT3 passes even though author's intended solution is .Asymptotic difference between and is about 10x but practically the implementation would be 3x-4x faster.In DIVCNT1 it was easier to restrict weaker solution as the difference between and asymptotically itself is 1000x. [PS:I am ignoring all log terms for sake of simplicty of discussion] Last edit: 2023-03-30 05:01:17 |
|||||
2022-08-02 17:27:06
but i got wrong answer???????????? <snip> [Simes]: Read the footer - Don't post source code here, use the forum. Last edit: 2022-08-02 21:35:11 |
|||||
2020-04-20 12:15:11
How to improve running time of my solution @Min_25? ID - 25810071 |
|||||
2018-03-15 13:20:41
for exmple we can get Divisor Summatory Function in O(n1/3logn)(DIVCNT1) instead O(√n) .... it improve time? (Re) Yes for some ranges. Last edit: 2018-03-15 13:44:25 |
|||||
2018-03-15 10:53:45
wow. how some user solved it in 3 sec? or they solved partially? (Re) Their solutions solved all. There are various solutions for this problem. Last edit: 2018-03-15 13:15:35 |
|||||
2018-03-15 10:50:06
what is you mean from total time? time sum of all input? (Re) Yes. Last edit: 2018-03-15 13:04:19 |
|||||
2018-01-25 07:55:42 [Lakshman]
Thanks, @Min_25 for clarification. Just to confirm is it about my Submission-ID 21047354. (Re) runs in time. So, the same argument can be applied. Last edit: 2018-01-26 09:12:50 |
|||||
2018-01-25 07:05:54 Min_25
@[Lakshman]: It is not but since . Last edit: 2018-01-25 07:06:44 |