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CUBNUM - Cube Numbers |
For any positive integer n, n can be represented as sum of other positive cube numbers (n = a13 + a23 + ... + am3). Your task is to print the smallest m, where m is number of cube numbers used to form n, such that n = a13 + a23 + ... + am3. For example:
- n = 5, n = 13 + 13 + 13 + 13 + 13 (m = 5)
- n = 8, n = 23 (m = 1)
- n = 35, n = 23 + 33 (m = 2)
Edit: My fastest time is 0.05s now lol
My Java solution is also accepted.
Input
Input consists of several test cases separated by new lines. Each test case consists of a positive integer, denoting the number of n (1 ≤ n ≤ 105). Input is terminated by end of file (EOF).
It is guaranteed that total test case per input file is less than 105.
Note: For c++ users, you can use while(scanf("%d",&n)!=EOF); to read input until EOF.
Warning: large Input/Output data, be careful with certain languages!.
Output
For each case, print "Case #X: M", where X (1 ≤ X ≤ 105) is the case number, and M is the minimum cube numbers used to form the integer n. There must be no trailing spaces at the end of printed lines, neither empty characters. Print a newline after each testcase.
Example
Input: 1 2 5 8 35 Output: Case #1: 1 Case #2: 2 Case #3: 5 Case #4: 1 Case #5: 2
Added by: | hanstan |
Date: | 2016-06-21 |
Time limit: | 0.200s-3s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 GOSU JS-MONKEY |
Resource: | Self |
hide comments
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2017-07-02 21:30:32
please dont use cbrt function...gave me 10 wa's |
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2017-06-20 06:44:37
precompute may save you!! |
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2017-06-12 15:55:56
Apart from rigorous DP.. you need to optimize a bit too.. Good one ... Hint (Try to avoid running your algo for every test case. Use your brains to optimize). |
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2017-05-28 17:18:24
Getting WA near test case #10 :( |
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2017-03-12 19:48:21
agree with you @shahzada |
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2017-03-10 12:32:51 shahzada
Easy dp ; Classical knapsack problem. Last edit: 2017-03-10 12:33:24 |
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2017-01-21 07:21:35 Kaustubh Tripathi
I am using DP approach but it's giving TLE. Can someone please help how can I optimize my code. Submission ID: 18613501 |
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2017-01-20 20:22:20
i guess test case #10 is not gonna let me live...damn irritating,, |
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2017-01-14 11:54:11
plz check my code ,,submission id 18572808 Thanks in advance Last edit: 2017-01-14 12:27:39 |
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2016-11-11 05:41:15
what should be range of given no.? Re: Read carefully, all the limits of the testcases have been written there, either explicitly or implicitly :) Last edit: 2016-11-25 14:10:00 |