C code - 33 lines

Link:

C, pasted on Aug 18:

#include<stdio.h>
#include<conio.h>

int main()
{
	int i, n;
	long S;
	do
	{
	printf("\nNhap n(n > 0): ");
	scanf("%d", &n);
	  if(n <= 0)
	   {
		printf("\n N phai > 0. Xin nhap lai !");
	   }
	}while(n <= 0);
    i = 1;
	S = 0;
	while(i < n)
	{
		if(n % i == 0)
		{
		   S = S + i;
		}
			i++;
	}
	if(S == n)
		printf("\n%d la so hoan thien", n);
	else
		printf("\nSo nhap vao khong la so hoan thien");
	getch();
	return 0;
}

Output:

1	Line 17: error: conio.h: No such file or directory

Create a new paste based on this one

Comments:

posted by Ngoctruyen99 on Apr 12

Tại sao i = 1 mà dùng n < n nhỉ.

posted by Ngoctruyen99 on Apr 12

i < n ạ. phần cmt không sửa được.

posted by cuong.luucb8921 on Aug 19

#include<stdio.h>

int main(){
int i;
int n;
int s = 0;
do
{
printf("Nhap vap n:\n");
scanf("%d",&n);
if(n < 1)
{
printf("n phai lon hon bang 1\n");
}
}while(n < 1);

for(i=1;i<n;i++)
{
if(n%i==0)
{
s = s + i;
}
}

if(s == n)
{
printf("%d la so hoan thien",n);
}
else
{
printf("%d khong la so hoan thien",n);
}
return 0;
}

posted by LeHoangAn on Aug 29

#include <iostream>
using namespace std;

int main() {
int a;
do {
cin >> a;
if (a <= 0) {
cout << "a phai la so nguyen duong";
}
} while (a <= 0);
int S = 0;
int b = 1;
while (b < a) {
if (a % b == 0) {
S += b;
if (S == a) {
cout << " a la so hoan thien";
}
}
else {
cout << "a khong phai la so hoan thien";
}
}
return 0;
}