diff --git a/Sorting/radix sort.cpp b/Sorting/radix sort.cpp new file mode 100644 index 0000000..b79c2e5 --- /dev/null +++ b/Sorting/radix sort.cpp @@ -0,0 +1,69 @@ +import java.io.*; +import java.util.*; + +class Radix { + + + static int getMax(int arr[], int n) + { + int mx = arr[0]; + for (int i = 1; i < n; i++) + if (arr[i] > mx) + mx = arr[i]; + return mx; + } + + + static void countSort(int arr[], int n, int exp) + { + int output[] = new int[n]; + int i; + int count[] = new int[10]; + Arrays.fill(count, 0); + + + for (i = 0; i < n; i++) + count[(arr[i] / exp) % 10]++; + + + for (i = 1; i < 10; i++) + count[i] += count[i - 1]; + + + for (i = n - 1; i >= 0; i--) { + output[count[(arr[i] / exp) % 10] - 1] = arr[i]; + count[(arr[i] / exp) % 10]--; + } + + + for (i = 0; i < n; i++) + arr[i] = output[i]; + } + + + static void radixsort(int arr[], int n) + { + + int m = getMax(arr, n); + for (int exp = 1; m / exp > 0; exp *= 10) + countSort(arr, n, exp); + } + + + static void print(int arr[], int n) + { + for (int i = 0; i < n; i++) + System.out.print(arr[i] + " "); + } + + + public static void main(String[] args) + { + int arr[] = { 170, 45, 75, 90, 802, 24, 2, 66 }; + int n = arr.length; + + // Function Call + radixsort(arr, n); + print(arr, n); + } +}