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62 lines
1.1 KiB
62 lines
1.1 KiB
2 years ago
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## Unzipstring
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### Instructions
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Unzipstring is a simple function that takes a string in of form of a number and an alphabet like (2a) and returns the original string (aa).
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- the number before the alphabet should be between 0 to 9
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- The one alphabet after each number should be between a to z or A to Z
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- it can be two numbers or two alphabets in a row
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- if the Input string doesn't respect the format return `Invalid Input`
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### Expected Function
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```go
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func Unzipstring(s string) string {
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//code here
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}
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```
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### Usage
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Here is a possible program to test your function:
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```go
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package main
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import (
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"fmt"
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"piscine"
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)
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func main() {
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fmt.Println(piscine.Unzipstring("6H8a"))
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fmt.Println(piscine.Unzipstring("3p6i1W"))
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fmt.Println(piscine.Unzipstring("2O5u2H0e"))
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fmt.Println(piscine.Unzipstring("2f"))
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fmt.Println(piscine.Unzipstring("2a 6p8f"))
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fmt.Println(piscine.Unzipstring("2p4;7g"))
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fmt.Println(piscine.Unzipstring("2t4dD"))
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fmt.Println(piscine.Unzipstring("82t4D"))
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}
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```
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And its output :
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```console
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$ go run .
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HHHHHaaaaaaaa
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pppiiiiiiWWW
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OOuuuuuHH
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ff
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Invalid Input
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Invalid Input
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Invalid Input
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Invalid Input
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```
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