挑战编程 uva100 3n+1

挑战编程 刘汝佳 的第一道习题  热身题

熟悉下提交格式

题意

 

#include <iostream>
#include <algorithm>

using namespace std;

int n, m;






int main()
{
    while (cin >> n >> m) {
        int start = min(n, m);
        int end = max(n, m);
        int maxcount = 0;
        for (int i = start; i <= end; i++) {
            long long tmp = i;
            int count = 1;
            while (tmp != 1) {
                if (tmp & 1) {
                    //2
                    tmp = tmp * 3 + 1;
                }
                else {
                    //3

                    tmp = tmp >> 1;
                }
                count++;
            }

            if (maxcount < count) maxcount = count;
        }
        cout << n << " " << m << " " << maxcount << endl;
    }
    

    return 0;
}