Post History
#3: Post edited
by
Razetime
·
2020-11-16T16:41:21Z (over 3 years ago)
finalized
Length of a Sumac Sequence
- Length of a Sumac Sequence[FINALIZED]
#2: Post edited
by
Razetime
·
2020-11-16T13:10:00Z (over 3 years ago)
- Heavily based on [this closed challenge from SE.](https://codegolf.stackexchange.com/q/148911/80214)
- A Sumac sequence starts with two non-zero integers \$t_1\$ and \$t_2.\$
- The next term, \$t_3 = t_1 - t_2\$
- More generally, \$t_n = t_{n-2} - t_{n-1}\$
- The sequence ends when \$t_n ≤ 0\$ (exclusive). No negative integers should be present in the sequence.
- # Challenge
- Given two integers \$t_1\$ and \$t_2\$, compute the Sumac sequence, and output it's length.
If there is a negative number in the input, remove everything after it, and compute the length.- You may take the input in any way (Array, two numbers, etc.)
- # Test Cases
- Taken from the original question.
- ```
- t1 t2 length
- 120 71 5
- 101 42 3
- 500 499 4
- 387 1 3
- 3 -128 1
- -2 3 0
- ```
- Heavily based on [this closed challenge from SE.](https://codegolf.stackexchange.com/q/148911/80214)
- A Sumac sequence starts with two non-zero integers \$t_1\$ and \$t_2.\$
- The next term, \$t_3 = t_1 - t_2\$
- More generally, \$t_n = t_{n-2} - t_{n-1}\$
- The sequence ends when \$t_n ≤ 0\$ (exclusive). No negative integers should be present in the sequence.
- # Challenge
- Given two integers \$t_1\$ and \$t_2\$, compute the Sumac sequence, and output it's length.
- If there is a negative number in the input, remove everything after it(including the negative number), and compute the length. The length can be 0.
- You may take the input in any way (Array, two numbers, etc.)
- # Test Cases
- Taken from the original question.
- ```
- t1 t2 length
- 120 71 5
- 101 42 3
- 500 499 4
- 387 1 3
- 3 -128 1
- -2 3 0
- ```
#1: Initial revision
by
Razetime
·
2020-11-14T05:43:44Z (over 3 years ago)
Length of a Sumac Sequence
Heavily based on [this closed challenge from SE.](https://codegolf.stackexchange.com/q/148911/80214)
A Sumac sequence starts with two non-zero integers \$t_1\$ and \$t_2.\$
The next term, \$t_3 = t_1 - t_2\$
More generally, \$t_n = t_{n-2} - t_{n-1}\$
The sequence ends when \$t_n ≤ 0\$ (exclusive). No negative integers should be present in the sequence.
# Challenge
Given two integers \$t_1\$ and \$t_2\$, compute the Sumac sequence, and output it's length.
If there is a negative number in the input, remove everything after it, and compute the length.
You may take the input in any way (Array, two numbers, etc.)
# Test Cases
Taken from the original question.
```
t1 t2 length
120 71 5
101 42 3
500 499 4
387 1 3
3 -128 1
-2 3 0
```