2021中国大学生程序设计竞赛（CCPC）- 网络选拔赛（重赛）1004

最新推荐文章于 2022-05-20 10:40:10 发布

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最新推荐文章于 2022-05-20 10:40:10 发布 · 584 阅读

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这篇文章探讨了PrimalityTest中的核心问题，即如何通过定义f(x)来确定输入整数x对应的g(x)是否为素数。通过实例解析和代码实现，读者将理解如何利用最小质数概念计算g(x)，并解决相应的编程挑战。

Primality Test

Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)
Total Submission(s): 5305 Accepted Submission(s): 2464

Problem Description

A positive integer is called a prime if it is greater than 1 and cannot be written as the product of two smaller positive integers. A primality test is an algorithm for determining whether an input number is a prime. For example, the Miller-Rabin primality test is a probabilistic primality test. This problem is precisely the one about the primality test.

Let's define the function f(x) as the smallest prime which is strictly larger t