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πŸ–₯Быстрая сортировка (QuickSort) с использованиСм рСкурсии

ΠŸΡ€ΠΎΠ±Π»Π΅ΠΌΠ°: cΠΎΡ€Ρ‚ΠΈΡ€ΠΎΠ²ΠΊΠ° Π±ΠΎΠ»ΡŒΡˆΠΈΡ… массивов ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ нСэффСктивной ΠΏΡ€ΠΈ использовании простых Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ², Ρ‚Π°ΠΊΠΈΡ… ΠΊΠ°ΠΊ сортировка ΠΏΡƒΠ·Ρ‹Ρ€ΡŒΠΊΠΎΠΌ ΠΈΠ»ΠΈ вставками.

РСшСниС: Автор Π² ΠΊΠ½ΠΈΠ³Π΅ Algorithms and Data Structures for OOP With C# дСмонстрируСт Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΡŽ QuickSort β€” ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΈΠ· самых эффСктивных Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² сортировки Π½Π° ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅, с рСкурсивным Ρ€Π°Π·Π±ΠΈΠ΅Π½ΠΈΠ΅ΠΌ массива.

ΠŸΡ€ΠΈΠΌΠ΅Ρ€ ΠΊΠΎΠ΄Π°:

public class QuickSortExample
{
public void QuickSort(int[] arr, int low, int high)
{
if (low < high)
{
int pi = Partition(arr, low, high);

QuickSort(arr, low, pi - 1);
QuickSort(arr, pi + 1, high);
}
}

private int Partition(int[] arr, int low, int high)
{
int pivot = arr[high];
int i = (low - 1);

for (int j = low; j < high; j++)
{
if (arr[j] < pivot)
{
i++;
(arr[i], arr[j]) = (arr[j], arr[i]);
}
}

(arr[i + 1], arr[high]) = (arr[high], arr[i + 1]);
return i + 1;
}
}


ΠŸΡ€Π΅ΠΈΠΌΡƒΡ‰Π΅ΡΡ‚Π²Π°:
β€” Быстрая сортировка Π΄Π°ΠΆΠ΅ Π±ΠΎΠ»ΡŒΡˆΠΈΡ… Π½Π°Π±ΠΎΡ€ΠΎΠ² Π΄Π°Π½Π½Ρ‹Ρ…
β€” БрСдняя ΡΠ»ΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ O(n log n)
β€” Π­Ρ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΠ΅ использованиС памяти Π·Π° счСт рСкурсии
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πŸ–₯Быстрая сортировка (QuickSort) с использованиСм рСкурсии

ΠŸΡ€ΠΎΠ±Π»Π΅ΠΌΠ°: cΠΎΡ€Ρ‚ΠΈΡ€ΠΎΠ²ΠΊΠ° Π±ΠΎΠ»ΡŒΡˆΠΈΡ… массивов ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ нСэффСктивной ΠΏΡ€ΠΈ использовании простых Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ², Ρ‚Π°ΠΊΠΈΡ… ΠΊΠ°ΠΊ сортировка ΠΏΡƒΠ·Ρ‹Ρ€ΡŒΠΊΠΎΠΌ ΠΈΠ»ΠΈ вставками.

РСшСниС: Автор Π² ΠΊΠ½ΠΈΠ³Π΅ Algorithms and Data Structures for OOP With C# дСмонстрируСт Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΡŽ QuickSort β€” ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΈΠ· самых эффСктивных Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² сортировки Π½Π° ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅, с рСкурсивным Ρ€Π°Π·Π±ΠΈΠ΅Π½ΠΈΠ΅ΠΌ массива.

ΠŸΡ€ΠΈΠΌΠ΅Ρ€ ΠΊΠΎΠ΄Π°:


public class QuickSortExample
{
public void QuickSort(int[] arr, int low, int high)
{
if (low < high)
{
int pi = Partition(arr, low, high);

QuickSort(arr, low, pi - 1);
QuickSort(arr, pi + 1, high);
}
}

private int Partition(int[] arr, int low, int high)
{
int pivot = arr[high];
int i = (low - 1);

for (int j = low; j < high; j++)
{
if (arr[j] < pivot)
{
i++;
(arr[i], arr[j]) = (arr[j], arr[i]);
}
}

(arr[i + 1], arr[high]) = (arr[high], arr[i + 1]);
return i + 1;
}
}


ΠŸΡ€Π΅ΠΈΠΌΡƒΡ‰Π΅ΡΡ‚Π²Π°:
β€” Быстрая сортировка Π΄Π°ΠΆΠ΅ Π±ΠΎΠ»ΡŒΡˆΠΈΡ… Π½Π°Π±ΠΎΡ€ΠΎΠ² Π΄Π°Π½Π½Ρ‹Ρ…
β€” БрСдняя ΡΠ»ΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ O(n log n)
β€” Π­Ρ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΠ΅ использованиС памяти Π·Π° счСт рСкурсии

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Traders also expressed uncertainty about the situation with China Evergrande, as the indebted property company has not provided clarification about a key interest payment.In economic news, the Commerce Department reported an unexpected increase in U.S. new home sales in August.Crude oil prices climbed Friday and front-month WTI oil futures contracts saw gains for a fifth straight week amid tighter supplies. West Texas Intermediate Crude oil futures for November rose $0.68 or 0.9 percent at 73.98 a barrel. WTI Crude futures gained 2.8 percent for the week.

Telegram has exploded as a hub for cybercriminals looking to buy, sell and share stolen data and hacking tools, new research shows, as the messaging app emerges as an alternative to the dark web.An investigation by cyber intelligence group Cyberint, together with the Financial Times, found a ballooning network of hackers sharing data leaks on the popular messaging platform, sometimes in channels with tens of thousands of subscribers, lured by its ease of use and light-touch moderation.C 1001 notes from cn


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