欢迎来到起遇信息学
起遇信息学正处于上线筹建阶段,以下功能已全部开放免费体验: ✅ 完整题库浏览与代码提交评测(C / C++ / Python / Java 等) ✅ 入门到进阶的系列课程试读、作业与考试 ✅ AI 提示、AI 作业分析等智能助教功能 ✅ 赛事模拟与个人能力报告 ✅ 邮箱注册开放 ⏳ 付费课程订阅与微信/支付宝支付通道 ⏳ 手机号登录,微信扫码登录、微信公众号绑定 使用中如遇任何问题,欢迎通过页面底部 **"联系我们"** 与我们沟通。
CF1822C.Bun Lover
Bun Lover
Tema loves cinnabon rolls — buns with cinnabon and chocolate in the shape of a "snail".
Cinnabon rolls come in different sizes and are square when viewed from above. The most delicious part of a roll is the chocolate, which is poured in a thin layer over the cinnabon roll in the form of a spiral and around the bun, as in the following picture:

Cinnabon rolls of sizes 4, 5, 6
For a cinnabon roll of size , the length of the outer side of the square is , and the length of the shortest vertical chocolate segment in the central part is one.
Formally, the bun consists of two dough spirals separated by chocolate. A cinnabon roll of size is obtained from a cinnabon roll of size by wrapping each of the dough spirals around the cinnabon roll for another layer.
It is important that a cinnabon roll of size is defined in a unique way.
Tema is interested in how much chocolate is in his cinnabon roll of size . Since Tema has long stopped buying small cinnabon rolls, it is guaranteed that .
Answer this non-obvious question by calculating the total length of the chocolate layer.
Input
The first line of the input contains a single integer () — the number of test cases.
The following lines describe the test cases.
Each test case is described by a single integer () — the size of the cinnabon roll.
Output
Output integers. The -th of them should be equal to the total length of the chocolate layer in the -th test case.
Samples
4
4
5
6
179179179
26
37
50
32105178545472401
在线编程 IDE
建议全屏模式获得最佳体验
| 进入全屏编程 | Alt+E |
| 递交评测 | Ctrl+Enter |
| 注释/取消注释 | Ctrl+/ |
| 缩放字体 | Ctrl+滚轮 |