定义一种对正整数n的“F”运算:①当n为奇数时
=3n+1;②当n为偶数时,
=
(其中k是使
为奇数的正整数)……,两种运算交替重复进行,例如,取n=24则:
![](https://img.xkw.com/dksih/QBM/2019/11/20/2338047541731328/2338867604914176/STEM/0c49334196d048b786a685b35ec9b297.png?resizew=285)
若n=13,则第2019次“F”运算的结果是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/081fad2749f3f201cf2c324c3d0dd190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/081fad2749f3f201cf2c324c3d0dd190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab323034fa0a2c295456974973a1d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/081fad2749f3f201cf2c324c3d0dd190.png)
![](https://img.xkw.com/dksih/QBM/2019/11/20/2338047541731328/2338867604914176/STEM/0c49334196d048b786a685b35ec9b297.png?resizew=285)
若n=13,则第2019次“F”运算的结果是( )
A.1 | B.4 | C.2019 | D.42019 |
19-20七年级上·安徽淮南·期中 查看更多[3]
安徽省淮南市田区2019-2020学年七年级上学期期中数学试题(已下线)期中模拟卷A卷(范围:七下苏科第7-9章)-【帮课堂】2022-2023学年七年级数学下册同步精品讲义(苏科版)广东省惠州市惠阳区凤凰山学校2022-2023学年七年级上学期1月月考数学试题
更新时间:2019-11-21 21:01:14
|
【知识点】 程序流程图与有理数计算解读
相似题推荐
单选题
|
较难
(0.4)
【推荐1】如图是计算机程序的一个流程图,现定义:“
”表示用
的值作为x的值输入程序再次计算.比如:当输入
时,依次计算作为第一次“传输”,可得
,
,
,9不大于2024,所以
,把
输入程序,再次计算作为第二次“传输”,可得
,
,……,若输入
,那么经过( )次“传输”后可以输出结果,结束程序.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57732233bff1734700a52528734ef3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39241f2eeccaa16d0550d851619bcb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32d4d257e10be792b250b9c7bd8152e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3095b172902e9ba9c2e3e927ce445e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738317df2665c72d92812b7714675549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272b269c1bad1a0383686a5bdef18b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93f48b65fd78bb1bd33ac9a8bb03e6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c084e76df20498631ec3bc5d9761f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/817ec73e-9f8b-4de2-8cdd-ba7786e1ff13.png?resizew=159)
A.11 | B.12 | C.21 | D.23 |
您最近一年使用:0次
单选题
|
较难
(0.4)
名校
【推荐2】按下面的程序计算:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/c73b4fe2-736c-4349-a4b5-e6ae0597a832.png?resizew=327)
若输入
,输出结果是
,若输入
,输出结果是
,若开始输入的
值为正整数,最后输出的结果为
,则开始输入的
值可能有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/c73b4fe2-736c-4349-a4b5-e6ae0597a832.png?resizew=327)
若输入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32d280de38924798f5d61ad12971df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08408cc51554bcf23a460f277689027.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bef050ec147c0582142e94d7cf2a9e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f4d4edb7d780493a70a906aa806311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9985ad1358d0fddcb8bfc99deb95bf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e683b04740dc291bad643ebd544ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9985ad1358d0fddcb8bfc99deb95bf1.png)
A.1种 | B.2种 | C.3种 | D.4种 |
您最近一年使用:0次