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- // Kiem tra so hoan hao dung ham con
- // khai bao cac ham thu vien chuong trinh
- #include<stdio.h>
- #include<conio.h>
- int kiemtra(int x);
- void main()
- {
- int n;
- scanf("%d",&n);
- if(kiemtra(n)==1)
- {
- printf("La so hoan hao");
- }
- else
- {
- printf("Khong la so hoan hao");
- }
- }
- int kiemtra(int x)
- {
- int dem=0;
- int m;
- m=x;
- for(int i=1;i<x;i++)
- {
- if(x%i==0)
- dem=dem+i;
- }
- if(dem==m)
- {
- return 1;
- }
- else
- {
- return 0;
- }
- }
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