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Jan 21st, 2019
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  1. #include<iostream>
  2. using namespace std;
  3. void insertionsort(int a[], int N)
  4. {
  5. for(int i=0;i<N;i++)
  6. {
  7. int j=i-1;int key=a[i];
  8. while(j>=0 && a[j]>key)
  9. {
  10. a[j+1]=a[j];
  11. j--;
  12. }
  13. j++;
  14. a[j]=key;
  15. }
  16. }
  17. int main()
  18. {
  19. int arr[]={5,2,1,4};
  20. int N=sizeof(arr)/sizeof(int);
  21. insertionsort(arr,N);
  22. for(int i=0; i<N; i++)
  23. {
  24. cout<<arr[i]<<endl;
  25. }
  26. }
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