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Challenges Q&A Sandbox Meta
Challenges
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Post Challenge

"Hello, {name}!"

+3
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Background

While we do have a "Hello, World!" challenge, we still don't have one regarding input. So let's do one!

Challenge

Create a program that takes an input (not as a function argument) then outputs Hello, , the variable and ! altogether. Standard I/O only applies. Shortest submission per language wins!

Bonus: Use your username as the input.

code-golf string
posted about 3 years ago
3y ago
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General Sebast1an‭
1211 reputation 53 97 129 328
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2 comment threads

Output rules (2 comments)
A note about self answers (2 comments)

16 answers

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+1
−0

shortC, 30 bytes

B){Cs[100];Qs);R"Hello, %s!",s

Try it online!

posted about 3 years ago
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General Sebast1an‭
1211 reputation 53 97 129 328
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+4
−0

jq, 14 bytes

"Hello, \(.)!"

Try it online!

jq has expression interpolation, pretty epic!

posted about 3 years ago
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Razetime‭
2860 reputation 42 65 321 83
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+3
−0

Bash, 20 18 bytes

Saved two bytes by removing the quotes; the code works well without them.

echo Hello, `cat`!

Try it online!

posted about 3 years ago
2y ago
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celtschk‭
1354 reputation 28 47 175 73
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0 comment threads

+2
−0

C (gcc), 43 bytes

a[99];main(){printf("Hello, %s!",gets(a));}

Try it online!

posted about 3 years ago
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Lundin‭
1149 reputation 17 43 134 70
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2 comment threads

gets is removed from the C standard (2 comments)
a[] (2 comments)
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Japt, 10 bytes 

`HÁM, {U}!

Try it

The backtick decompresses a compressed string, the {} is Japt's string interpolation and U is the first input variable.

posted about 3 years ago
3y ago
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Shaggy‭
2111 reputation 4 115 214 166
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0 comment threads

+2
−0

Haskell, 43 35 bytes

main=interact$("Hello, "++).(++"!")

Try it online!

posted about 3 years ago
CC0
3y ago
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Hakerh400‭
1591 reputation 4 55 164 63
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0 comment threads

+1
−0

Ruby, 24 21 18 bytes

p"Hello, #{gets}!"

Try it online!

Golfed down 3 bytes thanks to @snail_'s advice. Golfed down 3 bytes thanks to @south's advice.

posted about 3 years ago
2y ago
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General Sebast1an‭
1211 reputation 53 97 129 328
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1 comment thread

21 bytes (2 comments)
+1
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Sclipting, (UTF-16) 14 bytes 

낆녬닆묬글⑴긐
posted about 3 years ago
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Moshi‭
1722 reputation 17 58 204 80
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+1
−0

Lua, 35 32 bytes

print("Hello, "..io.read().."!")

Try it online!

Golfed 3 bytes thanks to @Moshi's advice.

posted about 3 years ago
3y ago
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General Sebast1an‭
1211 reputation 53 97 129 328
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1 comment thread

Inline (1 comment)
+1
−0

JavaScript, 28 bytes

alert(`Hello, ${prompt()}!`)

Try it online!

posted about 3 years ago
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Shaggy‭
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+1
−0

Python 3, 27 bytes

print(f"Hello, {input()}!")

Try it online!

posted about 3 years ago
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General Sebast1an‭
1211 reputation 53 97 129 328
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+1
−0

AWK, 21 bytes

{print"Hello, "$0"!"}

Try it online!

posted about 3 years ago
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smlckz‭
51 reputation 0 4 5 0
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+0
−0

Java (JDK), 134 123 118 bytes

interface M{static void main(String[]a){System.out.print("Hello, "+new java.util.Scanner(System.in).nextLine()+"!");}}

Try it online!

Golfed 5 bytes thanks to @user's advice.

posted about 3 years ago
3y ago
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General Sebast1an‭
1211 reputation 53 97 129 328
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1 comment thread

Did you even try golfing this? The two variable assignments look entirely useless to me. (3 comments)
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PHP, 55 27 21 bytes

Hello, <?=$argv[1]?>!

Try it online!

Golfed 28 bytes thanks to my Software CD post. Golfed 6 bytes thanks to @Shaggy's advice.

posted about 3 years ago
3y ago
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General Sebast1an‭
1211 reputation 53 97 129 328
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21 bytes (1 comment)
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Factor, 30 29 bytes

[ readln "Hello, %s!"printf ]

Try it online!

Uses io and formatting.

posted about 2 years ago
2y ago
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south‭
361 reputation 0 44 36 22
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0 comment threads

+0
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J, 29 char

('!',~'Hello, ',1!:1<1)1!:2<4

Sample run

    ('!',~'Hello, ',1!:1<1)1!:2<4
torres
Hello, torres!
posted over 2 years ago
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torres‭
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