77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
package main
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import (
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"fmt"
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"strings"
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)
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// ---------------------------------------------------------
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// EXERCISE: Correct the lyric
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//
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// You have a slice that contains the words of Beatles'
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// legendary song: Yesterday. However, the order of the
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// words are incorrect.
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//
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// CURRENT OUTPUT
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//
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// [all my troubles seemed so far away oh i believe in yesterday now it looks as though they are here to stay]
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//
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// EXPECTED OUTPUT
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//
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// [yesterday all my troubles seemed so far away now it looks as though they are here to stay oh i believe in yesterday]
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//
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//
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// STEPS
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//
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// INITIAL SLICE:
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// [all my troubles seemed so far away oh i believe in yesterday now it looks as though they are here to stay]
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//
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//
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// 1. Prepend "yesterday" to the `lyric` slice.
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//
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// RESULT SHOULD BE:
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// [yesterday all my troubles seemed so far away oh i believe in yesterday now it looks as though they are here to stay]
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//
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//
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// 2. Put the words to the correct positions in the `lyric` slice.
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//
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// RESULT SHOULD BE:
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// [yesterday all my troubles seemed so far away now it looks as though they are here to stay oh i believe in yesterday]
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//
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//
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// 3. Print the `lyric` slice.
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//
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//
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// BONUS
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//
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// + Think about when does the append allocate a new backing array.
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//
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// + Check whether your conclusions are correct.
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//
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//
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// HINTS
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//
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// Only look at this if you get stuck.
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//
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// You can use the following slice operations to solve the exercise.
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//
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// + Prepends "value" to the slice:
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// slice = append([]string{"value"}, slice...)
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//
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// + Appends some part (N to M) of the same slice to itself:
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// slice = append(slice, slice[N:M]...)
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//
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// + Copies the last part of the slice starting from M to the first part of the slice until N:
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// slice = append(slice[:N], slice[M:]...)
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//
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// ---------------------------------------------------------
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func main() {
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// DON'T TOUCH THIS:
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lyric := strings.Fields(`all my troubles seemed so far away oh i believe in yesterday now it looks as though they are here to stay`)
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// ADD YOUR CODE BELOW:
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// ...
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fmt.Printf("%s\n", lyric)
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}
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