-
-
Save zhengfish/0428f32274b2b9ac6c19e46aa33e0614 to your computer and use it in GitHub Desktop.
Quick Sort in C++
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#include <iostream> | |
void printArray(int *array, int n) | |
{ | |
for (int i = 0; i < n; ++i) | |
std::cout << array[i] << std::endl; | |
} | |
void quickSort(int *array, int low, int high) | |
{ | |
int i = low; | |
int j = high; | |
int pivot = array[(i + j) / 2]; | |
int temp; | |
while (i <= j) | |
{ | |
while (array[i] < pivot) | |
i++; | |
while (array[j] > pivot) | |
j--; | |
if (i <= j) | |
{ | |
temp = array[i]; | |
array[i] = array[j]; | |
array[j] = temp; | |
i++; | |
j--; | |
} | |
} | |
if (j > low) | |
quickSort(array, low, j); | |
if (i < high) | |
quickSort(array, i, high); | |
} | |
int main() | |
{ | |
int array[] = {95, 45, 48, 98, 1, 485, 65, 478, 1, 2325}; | |
int n = sizeof(array)/sizeof(array[0]); | |
std::cout << "Before Quick Sort :" << std::endl; | |
printArray(array, n); | |
quickSort(array, 0, n); | |
std::cout << "After Quick Sort :" << std::endl; | |
printArray(array, n); | |
return (0); | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment