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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4.  
  5. 	int n,t,K;           //関数を定義
  6. 	scanf("%d",&n);	    //nの値を入力
  7. 	K=0;
  8.  
  9. 	while(n>1){         //nが１になるまでループ
  10.  
  11. 		if (n%2==0){     //nが偶数のとき
  12. 			t=n/2;
  13. 			n=t;
  14. 		}
  15.  
  16.  
  17. 		else{           //nが奇数のとき
  18. 			t=3*n+1;
  19. 			n=t;
  20. 		}
  21.  
  22. 		K++;            //K(n)の値を増やす
  23. 	}
  24.  
  25. 	printf("%d",K);        //K(n)の値を出力
  26.  
  27.  
  28. 	return 0;
  29. }
  30.  
Success #stdin #stdout 0s 5304KB
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https://ideone.com/dVojGF
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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