loj#P5. 猜数字 1

猜数字 1

Cannot parse: undefinedms error parsing time

Description

You are given a hint to guess a positive number xx, an integer ranging from 11 to nn.

Input

The first line contains a number nn, indicating the range of the number (from 11 to nn).
The second line contains a Python expression that implies xx.

Output

One integer xx to get full points. To get a few points without guessing, give a 0 as the answer.

For each case, write your answer into a file date#.usr. Either submit them directly within the editor on page, or pack all answer files into a single zip and upload it.

10
abs(x - 7) == 4
3

Limits And Hints

本题中给出的 Python 表达式与 C++ 语义相同。表达式中 x 是一个整型变量,当 x 为正确答案时,表达式求值为 True;否则为 False。保证答案惟一。

注:

  • Python 中 a ** b 表示计算 aba^b
  • pi 的值为 3.1415926535897933.141592653589793;三角函数使用弧度制。
  • 给出的表达式可以直接在 Python 中 from math import * 后求值。
  • 本题的测试数据中,in 文件是输出 00 可得的分数百分比;out 文件是正确日期。在上传提交答案类题目时,如果 Special Judge 不需要 in/out 文件,可在 data.yml 中对应省略 inputFile/outputFile 项。
  • 不保证 答案是一个公历日期。