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61 changes: 61 additions & 0 deletions Radix_Sort.cpp
Original file line number Diff line number Diff line change
@@ -0,0 +1,61 @@
#include <iostream>
int maxElement(int arr[],int n){
int max = arr[0];
for(int i=1;i<n;i++){
if(arr[i]>max){
max = arr[i];
}
}
return max;
}
void countSort(int a[],int n,int pos){
int k=9;
int count[k+1];
int b[n];
for(int i=0;i<=k;i++){
count[i] = 0;
}
for(int j=0;j<k+1;j++){
count[(a[j]/pos)%10]++;
}
for(int i=1;i<k+1;i++){
count[i] = count[i] + count[i-1];
}
for(int j=n-1;j>=0;j--){
count[(a[j]/pos)%10]--;
b[count[(a[j]/pos)%10]] = a[j];

}
for(int i=0;i<n;i++){
a[i]=b[i];
}
}


void radixSort(int a[],int n){
int max = maxElement(a,n);
for(int pos = 1;(max/pos)>0;pos *= 10){
countSort(a,n,pos);
}

}


void printArray(int arr[],int n){
printf("\nPrinting the Array: \n");
for(int i=0;i<n;i++){
printf("%d->",arr[i]);
}
}

int main(){
int arr[] = {432,8,530,90,88,23,11,45,677,199};
int n = sizeof(arr)/sizeof(arr[0]);
printArray(arr,n);
radixSort(arr,n);
printArray(arr,n);



return 0;
}