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  1. #include <stdio.h>
  2. #include<math.h>
  3.  
  4.  
  5. int check(int m)
  6. {
  7.     int n = m;
  8. 	int count=1;
  9. 	while(n>=1)
  10. 	{
  11. 	    if(n==1)
  12. 	    {
  13. 	        break;
  14. 	    }
  15. 	    else if(n!=1 && n%2!=0)
  16. 	    {
  17. 	        n = (3*n)+1;
  18. 	    }
  19. 	    else
  20. 	    {
  21. 	        n/=2;
  22.  
  23. 	    }
  24. 	    count++;
  25. 	}
  26. 	return count;
  27. }
  28.  
  29.  
  30.  
  31. int main() {
  32. 	int i,j;
  33. 	while(scanf("%d %d",&i,&j) != EOF)
  34. {
  35. 	int max=0;
  36. 	if(i<=j)
  37. 	{
  38. 	    int start = i;
  39. 	    while(start<=j)
  40. 	    {
  41. 	        int ans = check(start);
  42. 	        if(ans>=max)
  43. 	        {
  44. 	            max = ans;
  45. 	        }
  46. 	        start++;
  47. 	    }
  48. 	    printf("%d %d %d\n",i,j,max);
  49. 	}
  50. 	else
  51. 	{
  52. 	    int start= i;
  53. 	    while(start>=j)
  54. 	    {
  55. 	        int ans = check(start);
  56. 	        if(ans>=max)
  57. 	        {
  58. 	            max = ans;
  59. 	        }
  60. 	        start--;
  61. 	    }
  62. 	    printf("%d %d %d\n",i,j,max);
  63. 	}
  64.  
  65. 	}
  66.  
  67.  
  68. }
Success #stdin #stdout 0s 5308KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/AKCKCt
language:
C (gcc 8.3)
created:
15 days ago
visibility:
public

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