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
hide comments
Rafail Loizou:
2021-06-08 05:23:34
His input files have end of line so be careful with that always check you haven't reached end of file before printing the answer (i.e. the last integer will be read twice because of the end line character). |
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aradhya_12:
2020-08-28 13:22:20
never use cbrt or any mathematical func here!! costed me 7 wa:( |
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divyansh_soni:
2018-09-21 20:51:26
i tried binary_search(greedy)+dp ,but failed at test 10.
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urimaj:
2018-08-09 08:56:08
good dp problem!! |
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jakshat_desai:
2018-03-25 14:03:58
The value of the number for which the sum is to be found is always less than 10^5 right? |
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kspoj:
2017-11-22 15:36:33
I'm getting WA at testcase #10 :(
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aditya_rev:
2017-11-18 22:03:41
Precompute should works. But why getting WA ? :(
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draco_malfoy:
2017-09-27 17:16:19
@hanstan can you please help me with my solution no 20241014?Getting WA.
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rayhan50001:
2017-08-14 13:35:34
Cbrt cost me 3 WA.
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namitp:
2017-08-13 12:56:19
Very Easy Nailed It in one Go.... |
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 |