36 lines
1.0 KiB
Plaintext
36 lines
1.0 KiB
Plaintext
func quicksort[arr: Array] : I64
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do_quicksort(arr, 0, Array.size(arr)-1)
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return 0
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func do_quicksort[arr: Array, low: I64, high: I64] : I64
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if low < high
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let i: I64 = partition(arr, low, high)
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do_quicksort(arr, low, i - 1)
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do_quicksort(arr, i + 1, high)
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return 0
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func partition[arr: Array, low: I64, high: I64] : I64
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let pivot: I64 = Array.nth(arr, high)
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let i: I64 = low - 1
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for j in (low)..high
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if Array.nth(arr, j) <= pivot
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i = i + 1
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let temp: I64 = Array.nth(arr, i)
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Array.set(arr, i, Array.nth(arr, j))
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Array.set(arr, j, temp)
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let temp: I64 = Array.nth(arr, i + 1)
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Array.set(arr, i + 1, Array.nth(arr, high))
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Array.set(arr, high, temp)
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return i + 1
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func main[] : I64
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let arr: Array = [340, 252, 352, 117, 650, 652, 322, 175, 714, 268, 725, 664]
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for i in 0..Array.size(arr)
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print_i64(Array.nth(arr, i))
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print("------------")
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quicksort(arr)
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for i in 0..Array.size(arr)
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print_i64(Array.nth(arr, i)) |