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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	/* 印出1~10000的完全數*/
  6. 	int i,j;
  7. 	for(i=1;i<=10000;i++){
  8. 		int sum=0;
  9. 		for(j=1;j<i;j++)
  10. 		{
  11. 			if(!(i%j))
  12. 			sum=sum+j;
  13. 		}
  14. 		if(sum==i)cout<<i<<"是完全數\n";
  15. 	}
  16. 	return 0;
  17. }
Success #stdin #stdout 0.9s 3460KB
comments (?)
stdin
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Standard input is empty
stdout
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6是完全數
28是完全數
496是完全數
8128是完全數
https://ideone.com/2cGClw
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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