}而快速排序与之相比实在是复杂太多了:
6 _6 j0 E7 O0 ]1 r( a* P 点此展开点此折叠
/ w( s3 B( x; Y0 b8 m8 p public void QuickSort(int[] array)2 O# i- m H8 g6 J! d
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QuickSortInternal(array, 0, array.Length);) o% Y3 r' X0 @4 |
}
# {* V* W0 W1 I$ n# I+ c private void QuickSortInternal(int[] array, int begin, int end), P) h# W9 X/ A# O5 V6 G
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if (end == begin)5 j2 v6 }! g9 m) [
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return;
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int pivot = FindPivotIndex(array, begin, end);- C( P- s+ }; {$ B2 \) n) u
if (pivot > begin) QuickSortInternal(array, begin, pivot - 1);
! f* V! E1 _/ A/ ? if (pivot < end) QuickSortInternal(array, pivot + 1, end);$ X1 {$ K& {, {! |9 m* n5 O- r
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}
3 c0 b: M- I7 J private int FindPivotIndex(int[] array, int begin, int end)) d4 |! g1 x% _: L* [6 L
{
6 }! J. n# p2 w3 L3 n) Q int pivot = begin;6 ]/ [9 O* _' Q
int m = begin + 1;6 Q7 w8 o; y; H. j9 Y; O9 H
int n = end;
) Y$ Y- ?$ d- R! Q6 I3 _* I# m while (m < end && array[pivot] >= array[m])- r+ M3 ]( R$ ~2 J2 F x* K/ H
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m++;
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while (n > begin && array[pivot] = array[m])
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}
- V) I' @; F7 o7 |! Q$ p while (n > begin && array[pivot] |