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nguyenhappy92

kiểm tra số nguyên dương n có phải là số hoàn hảo hay không?

Oct 6th, 2015
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  1. // Cho so nguyen duong n, kiem tra so nguyen duong n co phai
  2. // la so hoan hao hay ko
  3.  
  4. // Khai bao thu vien
  5.  
  6. #include<stdio.h>
  7. #include<conio.h>
  8.  
  9. void main()
  10. {
  11. int n;
  12. scanf("%d",&n);
  13. int dem=0;
  14. for(int i=1;i<n;i++)
  15. {
  16. if(n%i==0)
  17. {
  18. dem=dem+i;
  19. }
  20. }
  21. if(dem==n)
  22. {
  23. printf("La so hoan thien");
  24. }
  25. else
  26. {
  27. printf("Khong phai so hoan thien");
  28. }
  29. }
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