From aea9b75573ac8959e2d81ae3f9e8da58b3bcc4e6 Mon Sep 17 00:00:00 2001 From: sarnava1 Date: Mon, 1 Oct 2018 01:30:31 +0530 Subject: [PATCH] added c solution --- quicksortinc | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 quicksortinc diff --git a/quicksortinc b/quicksortinc new file mode 100644 index 0000000..69134a7 --- /dev/null +++ b/quicksortinc @@ -0,0 +1,58 @@ +/* C implementation QuickSort */ +#include + +void swap(int* a, int* b) +{ + int t = *a; + *a = *b; + *b = t; +} + +int partition (int arr[], int low, int high) +{ + int pivot = arr[high]; + int i = (low - 1); + + for (int j = low; j <= high- 1; j++) + { + if (arr[j] <= pivot) + { + i++; + swap(&arr[i], &arr[j]); + } + } + swap(&arr[i + 1], &arr[high]); + return (i + 1); +} + + +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); + } +} + + +void printArray(int arr[], int size) +{ + int i; + for (i=0; i < size; i++) + printf("%d ", arr[i]); + printf("n"); +} + + +int main() +{ + int arr[] = {10, 7, 8, 9, 1, 5}; + int n = sizeof(arr)/sizeof(arr[0]); + quickSort(arr, 0, n-1); + printf("Sorted array: n"); + printArray(arr, n); + return 0; +}