meetforever/GRPO_CL huggingface dataset:
user: In his publication Liber Abaci Leonardo Bonacci, aka Fibonacci, posed a problem involving a population of idealized rabbits. These rabbits bred at a fixed rate, matured over the course of one month, had unlimited resources, and were immortal.

Beginning with one immature pair of these idealized rabbits that produce b pairs of offspring at the end of each month. Create a function that determines the number of pair of mature rabbits after n months.

To illustrate the problem, consider the following example:

```python
fib_rabbits(5, 3) returns 19
```




Month
Immature Pairs
Adult Pairs




0
1
0


1
0
1


2
3
1


3
3
4


4
12
7


5
21
19



                                
        
Hint: any Fibonacci number can be computed using the following equation Fn = F(n-1) + F(n-2)

Answer: {"fn_name": "fib_rabbits", "inputs": [[0, 4], [1, 4], [4, 0], [6, 3], [8, 12], [7, 4], [9, 8], [10, 2], [11, 33], [100, 3], [40, 6], [4, 100]], "outputs": [[0], [1], [1], [40], [8425], [181], [10233], [341], [58212793], [465790837923166086127602033842234887], [2431532871909060205], [201]]}
user: Chingel is practicing for a rowing competition to be held on this saturday. He is trying his best to win this tournament for which he needs to figure out how much time it takes to cover a certain distance. 

**Input**

You will be provided with the total distance of the journey, speed of the boat and whether he is going downstream or upstream. The speed of the stream and direction of rowing will be given as a string. Check example test cases!

**Output**

The output returned should be the time taken to cover the distance. If the result has decimal places, round them to 2 fixed positions.

`Show some love ;) Rank and Upvote!`

Answer: {"fn_name": "time", "inputs": [[24, 10, "Downstream 2"], [24, 14, "Upstream 2"], [54, 28, "Downstream 3"], [60, 45, "Upstream 15"], [60, 45, "Downstream 15"]], "outputs": [[2], [2], [1.74], [2], [1]]}
user: ##Background - the Collatz Conjecture:

Imagine you are given a positive integer, `n`, then:

* if `n` is even, calculate: `n / 2`
* if `n` is odd, calculate: `3 * n + 1`

Repeat until your answer is `1`. The Collatz conjecture states that performing this operation repeatedly, you will always eventually reach `1`.

You can try creating Collatz sequences with [this](http://www.codewars.com/kata/5286b2e162056fd0cb000c20) kata. For further information, see the [wiki page](https://en.wikipedia.org/wiki/Collatz_conjecture).

##Now! Your task:

**Given an array of positive integers, return the integer whose Collatz sequence is the longest.**

Example:

```python
longest_collatz([2, 4, 3])==3
```

Explanation: The Collatz sequence for `2` has a length of `1`, the sequence for `4` has a length of `2`, and the sequence for `3` has a length of `7`. So from our array, the integer `3` is the one with the longest Collatz sequence.

Hence, your function should return `3`.

##Note:

There may be more than one answer, i.e. two or more integers produce the longest Collatz sequence, because they happen to have sequences of the same length. **In this case, your function should return the integer that appears first in the array.**

Example:
Given an array: `[2, 5, 32]`, both `5` and `32` have Collatz sequences of length 5. These are also the longest sequences from our array.

In this case, our function returns `5`, because `5` comes before `32` in our array.

Answer: {"fn_name": "longest_collatz", "inputs": [[[1, 5, 27, 4]], [[64, 64, 27, 64]], [[75, 226, 113, 340]], [[340, 113, 226, 75]], [[75, 113, 226, 75]]], "outputs": [[27], [27], [75], [75], [75]]}
user: Your job is to create a calculator which evaluates expressions in [Reverse Polish notation](http://en.wikipedia.org/wiki/Reverse_Polish_notation).

For example expression `5 1 2 + 4 * + 3 -` (which is equivalent to `5 + ((1 + 2) * 4) - 3` in normal notation) should evaluate to `14`.

For your convenience, the input is formatted such that a space is provided between every token.

Empty expression should evaluate to `0`.

Valid operations are `+`, `-`, `*`, `/`.

You may assume that there won't be exceptional situations (like stack underflow or division by zero).

Answer: {"fn_name": "calc", "inputs": [[""], ["3"], ["3.5"], ["1 3 +"], ["1 3 *"], ["1 3 -"], ["4 2 /"], ["10000 123 +"], ["5 1 2 + 4 * + 3 -"]], "outputs": [[0], [3], [3.5], [4], [3], [-2], [2], [10123], [14]]}
user: ## Grade book

Complete the function so that it finds the mean of the three scores passed to it and returns the letter value associated with that grade.

Numerical Score    | Letter Grade
---                | ---
90 <= score <= 100 | 'A'
80 <= score < 90   | 'B'
70 <= score < 80   | 'C'
60 <= score < 70   | 'D'
 0 <= score < 60   | 'F'

Tested values are all between 0 and 100. Theres is no need to check for negative values or values greater than 100.

Answer: {"fn_name": "get_grade", "inputs": [[95, 90, 93], [100, 85, 96], [92, 93, 94], [100, 100, 100], [70, 70, 100], [82, 85, 87], [84, 79, 85], [70, 70, 70], [75, 70, 79], [60, 82, 76], [65, 70, 59], [66, 62, 68], [58, 62, 70], [44, 55, 52], [48, 55, 52], [58, 59, 60], [0, 0, 0]], "outputs": [["A"], ["A"], ["A"], ["A"], ["B"], ["B"], ["B"], ["C"], ["C"], ["C"], ["D"], ["D"], ["D"], ["F"], ["F"], ["F"], ["F"]]}
user: Here we have a function that help us spam our hearty laughter. But is not working! I need you to find out why...

Expected results:

```python
spam(1)  ==> "hue"
spam(6)  ==> "huehuehuehuehuehue"
spam(14) ==> "huehuehuehuehuehuehuehuehuehuehuehuehuehue"
```

Answer: {"fn_name": "spam", "inputs": [[1], [6], [14]], "outputs": [["hue"], ["huehuehuehuehuehue"], ["huehuehuehuehuehuehuehuehuehuehuehuehuehue"]]}
user: # Task
Let's define a `parameter` of number `n` as the least common multiple (LCM) of the sum of its digits and their product.

Calculate the parameter of the given number `n`.

# Input/Output

`[input]` integer `n`

 A positive integer. It is guaranteed that no zero appears in `n`.

`[output]` an integer

 The parameter of the given number.

# Example

For `n = 22`, the output should be `4`.

Both the sum and the product of digits equal 4, and LCM(4, 4) = 4.

For `n = 1234`, the output should be `120`.

`1+2+3+4=10` and `1*2*3*4=24`, LCM(10,24)=120

Answer: {"fn_name": "parameter", "inputs": [[1234], [1], [2], [22], [11], [239], [999999999], [91], [344], [123456789]], "outputs": [[120], [1], [2], [4], [2], [378], [387420489], [90], [528], [362880]]}
user: If I give you a date, can you tell me what day that date is? For example, december 8th, 2015 is a tuesday.

Your job is to write the function ```day(d)```
which takes a string representation of a date as input, in the format YYYYMMDD. The example would be "20151208". The function needs to output the string representation of the day, so in this case ```"Tuesday"```.

Your function should be able to handle dates ranging from January first, 1582 (the year the Gregorian Calendar was introduced) to December 31st, 9999. You will not be given invalid dates. Remember to take leap years into account.

Answer: {"fn_name": "day", "inputs": [["20151208"], ["20140728"], ["20160229"], ["20160301"], ["19000228"], ["19000301"]], "outputs": [["Tuesday"], ["Monday"], ["Monday"], ["Tuesday"], ["Wednesday"], ["Thursday"]]}
user: You're familiar with [list slicing](https://docs.python.org/3/library/functions.html#slice) in Python and know, for example, that:

```python
>>> ages = [12, 14, 63, 72, 55, 24]
>>> ages[2:4]
[63, 72]
>>> ages[2:]
[63, 72, 55, 24]
>>> ages[:3]
[12, 14, 63]
```

write a function `inverse_slice()` that takes three arguments: a list `items`, an integer `a` and an integer `b`. The function should return a new list with the slice specified by `items[a:b]` _excluded_. For example:

```python
>>>inverse_slice([12, 14, 63, 72, 55, 24], 2, 4)
[12, 14, 55, 24]
```

The input will always be a valid list, `a` and `b` will always be different integers equal to or greater than zero, but they _may_ be zero or be larger than the length of the list.

Answer: {"fn_name": "inverse_slice", "inputs": [[[12, 14, 63, 72, 55, 24], 2, 4], [[12, 14, 63, 72, 55, 24], 0, 3], [["Intuition", "is", "a", "poor", "guide", "when", "facing", "probabilistic", "evidence"], 5, 13]], "outputs": [[[12, 14, 55, 24]], [[72, 55, 24]], [["Intuition", "is", "a", "poor", "guide"]]]}
user: Write a function that returns a sequence (index begins with 1) of all the even characters from a string. If the string is smaller than two characters or longer than 100 characters, the function should return "invalid string". 

For example:
`````
"abcdefghijklm" --> ["b", "d", "f", "h", "j", "l"]
"a"             --> "invalid string"
`````

Answer: {"fn_name": "even_chars", "inputs": [["a"], ["abcdefghijklm"], ["aBc_e9g*i-k$m"], [""], ["ab"], ["aiqbuwbjqwbckjdwbwkqbefhglqhfjbwqejbcadn.bcaw.jbhwefjbwqkvbweevkj.bwvwbhvjk.dsvbajdv.hwuvghwuvfhgw.vjhwncv.wecnaw.ecnvw.kejvhnw.evjkhweqv.kjhwqeev.kjbhdjk.vbaewkjva"]], "outputs": [["invalid string"], [["b", "d", "f", "h", "j", "l"]], [["B", "_", "9", "*", "-", "$"]], ["invalid string"], [["b"]], ["invalid string"]]}
user: Write function bmi that calculates body mass index (bmi = weight / height ^ 2).


if bmi <= 18.5 return "Underweight"

if bmi <= 25.0 return "Normal"

if bmi <= 30.0 return "Overweight"

if bmi > 30 return "Obese"

Answer: {"fn_name": "bmi", "inputs": [[50, 1.8], [80, 1.8], [90, 1.8], [110, 1.8], [50, 1.5]], "outputs": [["Underweight"], ["Normal"], ["Overweight"], ["Obese"], ["Normal"]]}
user: In this Kata, you will be given an array of strings and your task is to remove all consecutive duplicate letters from each string in the array.

For example: 

  * `dup(["abracadabra","allottee","assessee"]) = ["abracadabra","alote","asese"]`. 
  
  * `dup(["kelless","keenness"]) = ["keles","kenes"]`.

Strings will be lowercase only, no spaces. See test cases for more examples.

~~~if:rust
For the sake of simplicity you can use the macro 'vec_of_string' to create a Vec with an array of string literals.
~~~

Good luck!

If you like this Kata, please try:

[Alternate capitalization](https://www.codewars.com/kata/59cfc000aeb2844d16000075)

[Vowel consonant lexicon](https://www.codewars.com/kata/59cf8bed1a68b75ffb000026)

Answer: {"fn_name": "dup", "inputs": [[["ccooddddddewwwaaaaarrrrsssss", "piccaninny", "hubbubbubboo"]], [["abracadabra", "allottee", "assessee"]], [["kelless", "keenness"]], [["Woolloomooloo", "flooddoorroommoonlighters", "chuchchi"]], [["adanac", "soonness", "toolless", "ppellee"]], [["callalloo", "feelless", "heelless"]], [["putteellinen", "keenness"]], [["kelless", "voorraaddoosspullen", "achcha"]]], "outputs": [[["codewars", "picaniny", "hubububo"]], [["abracadabra", "alote", "asese"]], [["keles", "kenes"]], [["Wolomolo", "flodoromonlighters", "chuchchi"]], [["adanac", "sones", "toles", "pele"]], [["calalo", "feles", "heles"]], [["putelinen", "kenes"]], [["keles", "voradospulen", "achcha"]]]}
user: Trigrams are a special case of the n-gram, where n is 3. One trigram is a continious sequence of 3 chars in phrase. [Wikipedia](https://en.wikipedia.org/wiki/Trigram)

 - return all trigrams for the given phrase 
 - replace spaces with \_ 
 - return an empty string for phrases shorter than 3

Example:

trigrams('the quick red') ==  the he\_ e\_q \_qu qui uic ick ck\_ k\_r \_re red

Answer: {"fn_name": "trigrams", "inputs": [["the quick red"], ["Hi"]], "outputs": [["the he_ e_q _qu qui uic ick ck_ k_r _re red"], [""]]}
user: The citizens of Codeland read each word from right to left, meaning that lexicographical comparison works differently in their language. Namely, string ```a``` is lexicographically smaller than string ```b``` if either: ```a``` is a suffix of ```b``` (in common sense, i.e. ```b``` ends with a substring equal to ```a```); or their last ```k``` characters are the same but the ```(k + 1)th``` character from the right in string ```a``` is smaller than the same character in string ```b```.

Given an array of words in Codeland language, sort them lexicographically according to Codeland's unique rules.

For ```words = ["nigeb", "ta", "eht", "gninnigeb"]```, the output should be
```unusualLexOrder(words) = ["ta", "nigeb", "gninnigeb", "eht"]```.

In particular, ```"ta" < "nigeb"``` because ```'a' < 'b'``` and ```"nigeb" < "gninnigeb"``` because the former word is a suffix of the latter.

S: codefights.com

Answer: {"fn_name": "unusual_lex_order", "inputs": [[["nigeb", "ta", "eht", "gninnigeb"]], [["a", "b", "a", "d", "c"]]], "outputs": [[["ta", "nigeb", "gninnigeb", "eht"]], [["a", "a", "b", "c", "d"]]]}
user: # Your Task
The city of Darkishland has a strange hotel with infinite rooms. The groups that come to this hotel follow the following rules:

* At the same time only members of one group can rent the hotel.

* Each group comes in the morning of the check-in day and leaves the hotel in the evening of the check-out day.

* Another group comes in the very next morning after the previous group has left the hotel.

* A very important property of the incoming group is that it has one more member than its previous group unless it is the starting group. You will be given the number of members of the starting group.

* A group with n members stays for n days in the hotel. For example, if a group of four members comes on 1st August in the morning, it will leave the hotel on 4th August in the evening and the next group of five members will come on 5th August in the morning and stay for five days and so on.

Given the initial group size you will have to find the group size staying in the hotel on a specified day.
# Input
S denotes the initial size of the group and D denotes that you will have to find the group size staying in the hotel on D-th day (starting from 1). A group size S
means that on the first day a group of S members comes to the hotel and stays for S days. Then comes a group of S + 1 members according to the previously described rules and so on.

Answer: {"fn_name": "group_size", "inputs": [[1, 6], [3, 10], [3, 14], [10, 1000], [1, 1000], [5, 4], [5, 7], [10000, 1000000000000000], [2, 20000000000000], [10, 900000000000000000], [34545, 565], [234234, 6577], [10, 10]], "outputs": [[3], [5], [6], [46], [45], [5], [6], [44721361], [6324555], [1341640786], [34545], [234234], [10]]}
user: Philip's just turned four and he wants to know how old he will be in various years in the future such as 2090 or 3044. His parents can't keep up calculating this so they've begged you to help them out by writing a programme that can answer Philip's endless questions.

Your task is to write a function that takes two parameters: the year of birth and the year to count years in relation to. As Philip is getting more curious every day he may soon want to know how many years it was until he would be born, so your function needs to work with both dates in the future and in the past.

Provide output in this format: For dates in the future: "You are ... year(s) old." For dates in the past: "You will be born in ... year(s)." If the year of birth equals the year requested return: "You were born this very year!"

"..." are to be replaced by the number, followed and proceeded by a single space. Mind that you need to account for both "year" and "years", depending on the result.

Good Luck!

Answer: {"fn_name": "calculate_age", "inputs": [[2012, 2016], [1989, 2016], [2000, 2090], [2000, 1990], [2000, 2000], [900, 2900], [2010, 1990], [2010, 1500], [2011, 2012], [2000, 1999]], "outputs": [["You are 4 years old."], ["You are 27 years old."], ["You are 90 years old."], ["You will be born in 10 years."], ["You were born this very year!"], ["You are 2000 years old."], ["You will be born in 20 years."], ["You will be born in 510 years."], ["You are 1 year old."], ["You will be born in 1 year."]]}
user: The cockroach is one of the fastest insects. Write a function which takes its speed in km per hour and returns it in cm per second, rounded down to the integer (= floored).

For example:

```python
cockroach_speed(1.08) == 30
```

Note! The input is a Real number (actual type is language dependent) and is >= 0. The result should be an Integer.

Answer: {"fn_name": "cockroach_speed", "inputs": [[1.08], [1.09], [0]], "outputs": [[30], [30], [0]]}
user: Create a function which answers the question "Are you playing banjo?".  
If your name starts with the letter "R" or lower case "r", you are playing banjo!

The function takes a name as its only argument, and returns one of the following strings:
```
name + " plays banjo" 
name + " does not play banjo"
```
Names given are always valid strings.

Answer: {"fn_name": "areYouPlayingBanjo", "inputs": [["Adam"], ["Paul"], ["Ringo"], ["bravo"], ["rolf"]], "outputs": [["Adam does not play banjo"], ["Paul does not play banjo"], ["Ringo plays banjo"], ["bravo does not play banjo"], ["rolf plays banjo"]]}
user: Mobile Display Keystrokes

Do you remember the old mobile display keyboards? Do you also remember how inconvenient it was to write on it?
Well, here you have to calculate how much keystrokes you have to do for a specific word.

This is the layout:



Return the amount of keystrokes of input str (! only letters, digits and special characters in lowercase included in layout without whitespaces !)

e.g:


mobileKeyboard("123") => 3 (1+1+1)
mobileKeyboard("abc") => 9 (2+3+4)
mobileKeyboard("codewars") => 26 (4+4+2+3+2+2+4+5)

Answer: {"fn_name": "mobile_keyboard", "inputs": [[""], ["123"], ["codewars"], ["zruf"], ["thisisasms"], ["longwordwhichdontreallymakessense"]], "outputs": [[0], [3], [26], [16], [37], [107]]}
user: # altERnaTIng cAsE <=> ALTerNAtiNG CaSe

Define `String.prototype.toAlternatingCase` (or a similar function/method *such as* `to_alternating_case`/`toAlternatingCase`/`ToAlternatingCase` in your selected language; **see the initial solution for details**) such that each lowercase letter becomes uppercase and each uppercase letter becomes lowercase. For example:
``` haskell
toAlternatingCase "hello world" `shouldBe` "HELLO WORLD"
toAlternatingCase "HELLO WORLD" `shouldBe` "hello world"
toAlternatingCase "hello WORLD" `shouldBe` "HELLO world"
toAlternatingCase "HeLLo WoRLD" `shouldBe` "hEllO wOrld"
toAlternatingCase "12345"       `shouldBe` "12345"
toAlternatingCase "1a2b3c4d5e"  `shouldBe` "1A2B3C4D5E"
```
```C++
string source = "HeLLo WoRLD";
string upperCase = to_alternating_case(source);
cout << upperCase << endl; // outputs: hEllO wOrld
```
As usual, your function/method should be pure, i.e. it should **not** mutate the original string.

Answer: {"fn_name": "to_alternating_case", "inputs": [["hello world"], ["HELLO WORLD"], ["hello WORLD"], ["HeLLo WoRLD"], ["12345"], ["1a2b3c4d5e"], ["String.prototype.toAlternatingCase"]], "outputs": [["HELLO WORLD"], ["hello world"], ["HELLO world"], ["hEllO wOrld"], ["12345"], ["1A2B3C4D5E"], ["sTRING.PROTOTYPE.TOaLTERNATINGcASE"]]}
user: You're in ancient Greece and giving Philoctetes a hand in preparing a training exercise for Hercules! You've filled a pit with two different ferocious mythical creatures for Hercules to battle!

The formidable **"Orthus"** is a 2 headed dog with 1 tail.  The mighty **"Hydra"** has 5 heads and 1 tail. 

Before Hercules goes in, he asks you "How many of each beast am  I up against!?".

You know the total number of heads and the total number of tails, that's the dangerous parts, right? But you didn't consider how many of each beast. 

## Task

Given the number of heads and the number of tails, work out the number of each mythical beast! 

The data is given as two parameters. Your answer should be returned as an array:
```python 
 VALID ->      [24 , 15]           INVALID ->  "No solutions"
```

If there aren't any cases for the given amount of heads and tails - return "No solutions" or null (C#).

Answer: {"fn_name": "beasts", "inputs": [[123, 39], [371, 88], [24, 12], [113, 37], [635, 181], [25, 555], [12, 25], [54, 956], [5455, 54956], [0, 0], [-1, -1], [-45, 5], [99, 0], [0, 99], [5, -55]], "outputs": [[[24, 15]], [[23, 65]], [[12, 0]], [[24, 13]], [[90, 91]], ["No solutions"], ["No solutions"], ["No solutions"], ["No solutions"], [[0, 0]], ["No solutions"], ["No solutions"], ["No solutions"], ["No solutions"], ["No solutions"]]}
user: Two fishing vessels are sailing the open ocean, both on a joint ops fishing mission.

On a high stakes, high reward expidition - the ships have adopted the strategy of hanging a net between the two ships.

The net is **40 miles long**. Once the straight-line distance between the ships is greater than 40 miles, the net will tear, and their valuable sea harvest will be lost! We need to know how long it will take for this to happen.

Given the bearing of each ship, find the time **in minutes** at which the straight-line distance between the two ships reaches **40 miles**. Both ships travel at **90 miles per hour**. At time 0, assume the ships have the same location.

Bearings are defined as **degrees from north, counting clockwise**.
These will be passed to your function as integers between **0 and 359** degrees.
Round your result to **2 decmal places**.


If the net never breaks, return float('inf')

Happy sailing!

Answer: {"fn_name": "find_time_to_break", "inputs": [[90, 90]], "outputs": [[Infinity]]}
user: *Based on this Numberphile video: https://www.youtube.com/watch?v=Wim9WJeDTHQ*

---

Multiply all the digits of a nonnegative integer `n` by each other, repeating with the product until a single digit is obtained. The number of steps required is known as the **multiplicative persistence**.

Create a function that calculates the individual results of each step, not including the original number, but including the single digit, and outputs the result as a list/array. If the input is a single digit, return an empty list/array.

## Examples
```
per(1)  = []

per(10) = [0]
// 1*0 = 0

per(69) = [54, 20, 0]
// 6*9 = 54 --> 5*4 = 20 --> 2*0 = 0

per(277777788888899) = [4996238671872, 438939648, 4478976, 338688, 27648, 2688, 768, 336, 54, 20, 0]
// 2*7*7*7*7*7*7*8*8*8*8*8*8*9*9 = 4996238671872 --> 4*9*9*6*2*3*8*6*7*1*8*7*2 = 4478976 --> ...
```

Answer: {"fn_name": "per", "inputs": [[1234567890], [123456789], [12345678], [1234567], [123456], [12345], [2379], [777], [25], [277777788888899], [3778888999]], "outputs": [[[0]], [[362880, 0]], [[40320, 0]], [[5040, 0]], [[720, 0]], [[120, 0]], [[378, 168, 48, 32, 6]], [[343, 36, 18, 8]], [[10, 0]], [[4996238671872, 438939648, 4478976, 338688, 27648, 2688, 768, 336, 54, 20, 0]], [[438939648, 4478976, 338688, 27648, 2688, 768, 336, 54, 20, 0]]]}
user: # Task
 You are given a string consisting of `"D", "P" and "C"`. A positive integer N is called DPC of this string if it satisfies the following properties: 
 
 ```
 For each i = 1, 2, ... , size of the string:

 If i-th character is "D", then N can be divided by i
 If i-th character is "P", then N and i should be relatively prime
 If i-th character is "C", then N should neither be divided by i 
                           nor be relatively prime with i```

Your task is to find the smallest DPC of a given string, or return `-1` if there is no such. The result is guaranteed to be `<= 10^9`.

# Example
 For `s = "DDPDD"`, the result should be `20`.
 
 `"DDPDD"` means `N` should `divided by 1,2,4,5`, and `N,3` should be relatively prime. The smallest N should be `20`.

# Input/Output


 - `[input]` string `s`

  The given string


 - `[output]` an integer

  The smallest DPC of `s` or `-1` if it doesn't exist.

Answer: {"fn_name": "DPC_sequence", "inputs": [["DDPDD"], ["DDDDPDDCCCDDPDCCPCDCDDPCPCCDDCD"], ["DPCPDPPPDCPDPDPC"], ["DDDDDDCD"], ["CDDDPDDD"], ["DDDDDDPCCDPDPP"]], "outputs": [[20], [15782844], [-1], [-1], [-1], [-1]]}