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全部文章（共203篇）

错误代码“err_connection_timed_out”的解决方案

问题描述曾经试过用浏览器访问一个或几个特定网站，出现“ err_connection_timed_out ”错误，而其他网站加载良好没有任何问题或错误。上网查过发现这是一个常见的互联网错误。发生此DNS错误是因为访问或浏览该网站时，Internet IP地址被防火墙或驱动程序阻止。但有时这...

2020-09-07

0 3010

(详解)指针数组和数组指针

前言最近做C语言题，顺便复习一波首先明确运算符的优先级: 即:()>[]>* 正文指针数组：array of pointers，即用于存储指针的数组，也就是数组元素都是指针数组指针：a pointer to an array，即指向数组的指针 int *p1[1...

2020-09-07

0 784

java中对变量赋值时的后缀问题

前言对于java中变量赋值时的后缀问题，其实就是为了避免范围大的数值类型向范围小的数据类型转换时的精度损失(例如double转float) 正文对于float、double、long数据类型变量，需要在赋值直接量后面分别添加f或F、d或D、l或L尾缀来说明。(long类型最好以大写L...

2020-09-07

0 496

PAT A1042 Shuffling Machine

前言传送门正文题目描述 Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and ...

2020-09-07

0 590

PAT A1046 Shortest Distance

前言传送门正文题目描述 The task is really simple: given N exits on a highway which forms a simple cycle, you are supposed to tell the shortest distance...

2020-09-07

0 486

PAT A1065 A+B and C (64bit)

前言传送门正文题目描述 Given three integers A, B and C in [−263,263], you are supposed to tell whether A+B>C. Input Specification: The first ...

2020-09-07

0 516

PAT A1002 for Polynomials

前言传送门正文题目描述 This time, you are supposed to find A+B where A and B are two polynomials. Input Specification: Each input file contains ...

2020-09-07

0 736

PAT A1009 Product of Polynomials

前言传送门正文 This time, you are supposed to find A×B where A and B are two polynomials. Input Specification: Each input file contains one te...

2020-09-07

0 649

PAT A1011 World Cup Betting

前言传送门正文题目描述 With the 2010 FIFA World Cup running, football fans the world over were becoming increasingly excited as the best players from t...

2020-09-07

0 520

PAT A1006 Sign In and Sign Out

前言传送门正文题目描述 At the beginning of every day, the first person who signs in the computer room will unlock the door, and the last one who signs ...

2020-09-07

0 547