# Overview

Given a positive integer n > 0, output its integer square root. The integer square root of a number n is the largest value of x where x2 ≤ n, usually expressed with the formula floor(sqrt(n)).

Examples: 25 -> 5, 24 -> 4, 40 -> 6, 1 -> 1.

This task is easy enough on its own. However, in this challenge, your task is to solve this in as many languages as possible using a set of only 25 characters.

# Example

First, you need to pick a set (no duplicates) of 25 bytes. It may look something like this (note the leading space):

 ()*-.05:=>Mabdhilmnqrst|


Your challenge is then to, using only characters in this set, construct a solution to the problem in as many text based (sorry, Piet) languages as possible. You can use characters as many times as necessary, but you must not use characters outside the set.

The solutions can be either full programs or functions, but not snippets. For example, using this set of characters, I could do:

M -> (int) Math.sqrt(M)    // Java (lambda expression)
M => Math.sqrt(M)|0        // Javascript (unnamed function)
lambda M: int(M**.5)       // Python (lambda function)


As I've used 3 languages, this would give me a score of 3.

## Rules

• This is a challenge - your score is the number of languages your submission includes. The highest score wins. Standard loopholes apply.
• For this challenge, a 'language' counts as a distinctly different programming language - multiple versions of the same language (Python 2, Python 3, etc) are banned.
• Programs only need to work for inputs within the language's standard integer range.
• Programs with the exact same source code (polyglots) are not allowed.
• To be more specific, it is a set of bytes, not characters - so you can use the 05AB1E £ and the Jelly ɱ as the same character (because they have the same codepoint).

Please don't feel as though you have to beat all other solutions - if you have an interesting answer, post it!

• Can our solution be in Piet if we have the code be the raw ppm? (e.g. P3 10 10 255 ...) Jan 10 '17 at 2:58
• We need another pixel based language so we can have polyglots with poor old piet Jan 10 '17 at 3:37
• Can we count a polyglot of A and B as language A if we provide another solution that only works in B? Jan 10 '17 at 5:25
• Could you clarify "distinctly different"? For example, is Numberwang--using digits instead of []<>.,+--- distinctly different from Brainfuck? What about SNUSP, a 2D Brainfuck derivative? For both of them, the resulting code would not work in Brainfuck. Jan 10 '17 at 6:06
• @WheatWizard you can't have two programs that are exactly the same, but if you modify one to be different then it's allowed. And yes, if you really must, you can use the raw ppm as "text" for Piet :P Jan 10 '17 at 7:25

# 20 languages

Using  ()-#*.05;=>^Vefikloqrst (24 characters) so far:

let f l=floor(l**0.5);;       OCaml
let f l=floor(l**0.5)         F#
f(l)=floor(l^.5)              Julia
f(o)=floor(o^.5)              PARI/GP
s^+>5 0>5 0*.5l               Pyth
(* **.5).floor                Perl 6
flr.(tt ^.5)                  Wonder
l=>l**.5^0                    JavaScript
l->l**.5^0                    Cheddar
.5^5*5f                       Pyke
(isqrt)                       Maple
ri.5#i                        CJam
isqrt                         Common Lisp
0.5^k                         MATL
*.5^0                         Jelly
*.^0                          M
t0^                           05AB1E
q f                           Japt
r#                            Pushy
V-                            gs2

• Try adding flr.(tt ^.5) for Wonder (no added chars). Jan 10 '17 at 2:24
• If you would like to add {}[] you can add Brain-Flak. Here's the program Jan 10 '17 at 2:45
• If you added ~, you could do sqrt~~ in Stacked; it takes input from the TOS and leaves output on the stack. Jan 10 '17 at 3:21
• julia also has isqrt Jan 10 '17 at 4:14
• isqrt in Julia wouldn't count because polyglots are not allowed. Jan 10 '17 at 5:41

# 10 languages

Character set of 19 characters (in CP-1252):

,-/12@QUVX^fkmt¬÷␊␍


Where ␊ represents a line feed and the ␍ represents a carriage return.

### Jelly, 2 bytes

Æ½


Try it online!

### 05AB1E, 2 bytes

t1X-^


Try it online!

### GS2, 2 bytes

V-


Try it online!

### Jolf, 3 bytes

mfU


Try it here! (works best on Firefox)

### Japt, 2 bytes

¬f


Try it here!

### MATL, 3 bytes

X^k


Try it online!

### Pyke, 3 bytes

,1f


Try it here!

### Pyth, 6 bytes

/@Q2t2


Try it here!

### Oasis, 6 bytes

1␊2/m1÷


Try it online!

### 2sable, 9 bytes

t1X-XX--^


Try it online!

• cU also works in Jolf. Jan 10 '17 at 3:17
• @ConorO'Brien Although it's shorter, it would mean to add c to the list of characters. He's already using both m (in the Oasis sub-answer) and f (in the Japt and Pyke sub-answers). Jan 10 '17 at 9:18
• @KevinCruijssen ik, it's just for posterity Jan 10 '17 at 12:29

# 5 languages

### Character set (22 bytes):

s^Q.5=>*|0√Lrdmlab :/1


### Pyth

s^Q.5


### Javascript

Q=>Q**.5|0


### Actually

√L


### CJam

rdmQ


### Python

lambda Q:Q**.5//1

• You can replace | by ^ in your JavaScript answer to save a byte in your character set.
– Lynn
Jan 10 '17 at 2:22

# 5 languages

[].,+<>{}()0134879


18 characters.

I'm trying not to use any alphabet characters...

Brainfuck, Brainfuck++, Brainfuck-ng, Braintrust, ...

,[[>++++++[<++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++]>[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>++++++++++<]>[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<+>]<<<[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>>+<<]],]>>>>>>>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++[<<<<<[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>+>+<<]>[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<+>]<<+[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<<+>>>>+<<]>>[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<<+>>]<<<<[>>[<+>>>+<<+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++]<[>+<+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++]<+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++]>>>>>>>>+<<<<[>>>+<<[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>+>[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++]<<]>>[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>+<]<[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<+>]<+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++]>[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++]>>>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++]<<<<<<+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<++++++++++>[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++[<+<<]<[+[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>+<]<+<<]>>>>>]<<<[<++++++[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>++++++++<]>.[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++]]++++++[+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>++++++++<]>.


Doesn't work for over 224 because 256 (= (sqrt(225)+1)^2) overflows.

Replaced all -s with +s to use one less character. (e.g. - -> 255 +s)

Original Program

,[[>++++++[<-------->-]>[->++++++++++<]>[-<+>]<<<[->>+<<]],]>>>>>>>-[<<<<<[->+>+<<]>[-<+>]<<+[-<<+>>>>+<<]>>[-<<+>>]<<<<[>>[<+>>>+<<-]<[>+<-]<-]>>>>>>>>+<<<<[>>>+<<[->+>[-]<<]>>[->+<]<[-<+>]<-<-]>[-]>>>-]<<<<<<-<++++++++++>[-<-[<+<<]<[+[->+<]<+<<]>>>>>]<<<[<++++++[->++++++++<]>.[-]]++++++[->++++++++<]>.


Brain-Flak

({}(())[()])(()){{}((({})({}((({}())))[{}{({})({}[()])}{}]))[({}[{}])])([({}(())[()])]){(({}()({}[(({}[(())]()){(([({}{})]{}))}{})]{}))[({}[{}])])}{}{}}{}{}({}[()])


@WheatWizard's code. Thanks for the permission!

Brain-Flueue

({}())(())(())({}){{}({})({}<(({})<({({})({}[()])}{})>())>)([{}]<({})>({}))({}<‌​({}<([({})]){()<({}())>}{}(<()>){({}[()])([{}]())}{}>)>)({}<({})>)({})({})}{}({}[‌​()()]){}


Another @WheatWizard's code.

Numberwang

8440999999419999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999909999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999997049999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999990999999999917049999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999991907111499999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999900911778700000009999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999994111114999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999090911704999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999190711949999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999991190000911700499999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999911900711114004190009119999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999997140919999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999997199999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999970000000091111400091149999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999990904999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999711700499999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999909171499999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999919071999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999199999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999970499999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999970009999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999997111111999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999199999999990499999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999919999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999994191171494999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999091719117000007111419999994999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999099999999170349999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999997799999949999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999990999999991703


Spoon

00101100010000100010111111001000110000000000000000000000000100000011010001000000101111111111011001101000100000011101000110110110110010000001001010110110011001100101100011010010010010010010010000001000110110110110110010000001010101011011001101000100000011101000110110111001000000110111010010010010101101100110100100010000001101110100100011011011011011001000100100010001110100100101011011000001101100100010101100000110110000011010010010010010010010010101101101101100100010010010101101100100000010101000100000001101101100110100100010000001010110011011001000000111010001101100001100000110100010000000110100100100000011011011011011011011000011111111111101000100000011000001000111011011001101100100100100000010101100110111011011001101001001001001000110110110110010001111111100100000010111111110110011010001010001000000011001111111100100000010111111110110011010001010


Per meta consensus, this code should be okay, even though no interpreters are currently available.

# 5 languages

Using ()*/12 dlinpqrstu and newline (18 characters) so far.

### Common Lisp

isqrt


A built-in function.

### QBasic

input q
print int(sqr(q))


### Python 3

print(int(int(input())**(1/2)))


Python 3 used for floating-point division without decimal points.

### Pip

q**/2//1


Unnecessarily golfy to show off the unary inversion operator /. Takes input from stdin. Try it online!

### tinylisp

(d sqrt (q((n nsqr input) (i (l input nsqr) (s n 1) (sqrt (s n (s 1 2)) (s 2 (s (s (s 1 n) n) nsqr)) input)))))
(q((input)(sqrt 1 1 input)))


sqrt is a helper function whose arguments are: the current guess n, n squared, and the input number. If input is less than nsqr, we've gone too far, so return n minus 1; otherwise, recurse, adding 1 to n and adding n + n + 1 to nsqr. (The math is a bit complicated because tinylisp only has subtraction built in.) The second line defines our actual function, which takes a single input and returns the result of sqrt with n starting at 1.

• If you would like to add {}[] you can add Brain-Flak. Here's the program Jan 10 '17 at 2:51

# 6 languages

Using retun flosq(agm1)\,i and extended codepoints B1 and BC for 22 bytes so far.

GameMaker Language

return floor(sqrt(argument1))


Pyke

,1f


Julia

isqrt


Maple

(isqrt)


Stuck

i\


TI-Basic (hex dump)

B1 BC 72


Note that 0x72 is r in ASCII.

# 7 languages

24 chars:

limQi->(nt)Mah.sqr_ ?;:\


### CJam

limQ
mQ     e#Integer square root


### Java

i->(int)Math.sqrt(i)


### Chaincode

q_
q  #sQuare root
_ #floor


### Math++

_sqrt ?


### Grin

;q:


### Stuck

i\)


### Unilinear

iMivMiMs
Mi          Convert to int
v        Square root
Mi       Convert to int
Ms     Convert to String


### R

sqrt


## Costs too much bytes

### Python

lambda i:int(i**.5)

• Can add R: sqrt