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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int n,n_1,n_2,n_3,m,s;
  5.  
  6. 	scanf("%d",&n);
  7.  
  8. 	s=n;
  9.  
  10.  
  11. 	for(;m==1;){
  12.  
  13. 	n_1=n%10;
  14. 	n_2=n/10;
  15. 	n_3=n/100;
  16.  
  17. 	m=n_1*n_1+n_2*n_2+n_3*n_3;
  18.  
  19. 	printf("%d",m);
  20.  
  21. 	if(m==s)
  22. 	break;
  23. 	}
  24.  
  25. 	if(m==1)
  26. 	printf("ｎはハッピーナンバーです");
  27.  
  28. 	return 0;
  29. }
  30.  
Success #stdin #stdout 0s 5320KB
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stdin
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stdout
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https://ideone.com/HGRzLj
language:
C99 (gcc 8.3)
created:
9 hours ago
visibility:
public

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