poj1207

 根据给定的算法，可以计算一个整数的循环数，现在给定一个区间，计算这个区间的所有数的循环数，把最大的循环数输出。

#include <stdio.h> 

#include<stdio.h>

int main() 

{

    int n, p, i, j, count, max, low, high;

    while (scanf("%d%d", &i, &j) != EOF) 

{

        max = 0;

        low = i < j ? i : j;

        high = i < j ? j : i;

        for (p = low; p <= high; p++) 

      {

            n = p;

            count = 1;

            while (1 != n) 

             {            

                count++;

                if (n % 2 == 0)

               {    

                    n /= 2;

                } else 

                {                    

                    n = 3 * n + 1;

                }    

            }

            if (count > max) 

    {

                max = count;

            }

        }

        printf("%d %d %d\n", i, j, max);

    }

    return 0;

}