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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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2016-07-05 13:22:21
@hanstan pls see what is wrong with my code ....i dont think my logic is wrong !! RE: Actually yes your logic is wrong. Try to look for some other numbers.You should try to check from 1 to 100 manually, or create a program to brute-force and check every possible combinations to check your program is correct or not. Last edit: 2016-07-06 13:33:46 |
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2016-07-02 10:35:28
Nice Dp! |
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2016-07-02 09:19:49 Vipul Srivastava
Ya sorry for the stupid question.. my mistake :) |
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2016-07-02 09:07:38 Sushovan Sen
I think that is clear from given test case: Answer for 5 is : 1^3+1^3+1^3+1^3+1^3 not 2^3 + (-1)^3 + (-1)^3 + (-1)^3 |
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2016-07-02 09:00:40 Vipul Srivastava
a1, a2, a3 have to be positive right?? |