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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int a,b;
  5. 	scanf("%d",&a);
  6. 	b=a;
  7. 	for(;a==1;){
  8. 	 a=(a/10)*(a/10)+(a%10)*(a%10);
  9. 	 if(a==b){
  10. 	 	printf("%dはアンハッピーナンバーです\n",a);
  11. 	 	break;
  12. 	 }
  13. 	 if(a==1){
  14. 	 printf("%dハッピーナンバーです\n",a);
  15. 	 break;
  16. 	 }
  17. 	}
  18. 	return 0;
  19. }
  20.  
Success #stdin #stdout 0s 5304KB
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Standard output is empty
https://ideone.com/9m0gxa
language:
C (gcc 8.3)
created:
168 days ago
visibility:
public

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