mirror of https://github.com/TheAlgorithms/C
Merge remote-tracking branch 'origin/master'
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commit
536957a4fb
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@ -36,15 +36,24 @@ C
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## Searching
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- Linear_Search
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- Binary_Search
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- Other_Binary_Search
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- Jump_Search
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- Fibonacci_Search
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- Interpolation_Search
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- Modified_Binary_Search
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## Sorting
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- BinaryInsertionSort
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- BubbleSort
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- BucketSort
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- BogoSort
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- CountingSort
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- PartitionSort
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- ShellSort
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- RadixSort
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- InsertionSort
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- MergeSort
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- OtherBubbleSort
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@ -0,0 +1,84 @@
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//sorting of array list using Radix sort
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#include <stdio.h>
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#define range 10 // Range for integers is 10 as digits range from 0-9
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// Utility function to get the maximum value in ar[]
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int MAX(int ar[], int size){
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int i, max = ar[0];
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for(i = 0; i<size; i++){
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if(ar[i]>max)
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max = ar[i];
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}
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return max;
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}
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// Counting sort according to the digit represented by place
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void countSort(int arr[],int n,int place)
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{
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int i,freq[range]={0};
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int output[n];
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// Store count of occurences in freq[]
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for(i=0;i<n;i++)
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freq[(arr[i]/place)%range]++;
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// Change freq[i] so that it contains the actual position of the digit in output[]
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for(i=1;i<range;i++)
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freq[i]+=freq[i-1];
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// Build the output array
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for(i=n-1;i>=0;i--)
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{
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output[freq[(arr[i]/place)%range]-1]=arr[i];
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freq[(arr[i]/place)%range]--;
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}
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// Copy the output array to arr[], so it contains numbers according to the current digit
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for(i=0;i<n;i++)
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arr[i]=output[i];
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}
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/*This is where the sorting of the array takes place
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arr[] --- Array to be sorted
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n --- Array Size
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max --- Maximum element in Array
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*/
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void radixsort(int arr[],int n,int max) //max is the maximum element in the array
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{
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int mul=1;
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while(max)
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{
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countsort(arr,n,mul);
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mul*=10;
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max/=10;
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}
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}
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int main(int argc, const char * argv[]){
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int n;
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printf("Enter size of array:\n");
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scanf("%d", &n); // E.g. 8
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printf("Enter the elements of the array\n");
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int i;
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int arr[n];
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for(i = 0; i < n; i++){
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scanf("%d", &arr[i] );
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}
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printf("Original array: ");
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display(arr, n); // Original array : 10 11 9 8 4 7 3 8
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int max;
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max = MAX(arr,n);
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radixsort(arr, n, max);
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printf("Sorted array: ");
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display(arr, n); // Sorted array : 3 4 7 8 8 9 10 11
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return 0;
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}
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