STL deque容器不支持通过指针偏移读取元素（cplusplus.com意见反馈）
问题反馈过程
http://www.cplusplus.com 是介绍标准c++语言的一个权威网站，在其对deque容器的介绍中，有这样一句（反馈后现已更改）：
But, unlike vectors, deques are not guaranteed to store all its elem[……]
Python中一个正整数和一个负整数相除问题（易错点）
针对Python 2.7 版本，Python3 中不存在该问题
下面这段代码输出结果是什么？
a = 1
b = -2
c = a / b
print c
print int(c)
print int(-0.5)输出结果为：-1, -1, 0
如果是在C++中
int a = 1;
int[......]类对象数组的初始化与赋值（易错点）
下述代码中声明类Example对象的数组e[2]，然后新建了Example(1)对象并赋值给e[0]。通过这种方式设置类对象数组，称为赋值，而不是初始化。
这个过程实际上赋值过程，存在临时对象Example(1)的构造和析构。而通过类对象数组初始化就不存在生成临时对象这一过程。先看类对象数组声明和赋[……]
Problem 49 Prime permutations
Problem 49: Prime permutations
The arithmetic sequence, 1487, 4817, 8147, in which each of the terms increases b[……]
Problem 48 Self powers
Problem 48: Self powers
The series, 11 + 22 + 33 + … + 1010 = 10405071317.
Find the last ten digits of the ser[……]
Problem 47 Distinct primes factors
Problem 47: Distinct primes factors
The first two consecutive numbers to have two distinct prime factors are:
14[……]
Problem 46 Goldbach’s other conjecture
Problem 46: Goldbach’s other conjecture
It was proposed by Christian Goldbach that every odd composite number ca[……]
Problem 45 Triangular, pentagonal, and hexagonal
Problem 45: Triangular, pentagonal, and hexagonal
Triangle, pentagonal, and hexagonal numbers are generated by t[……]
Problem 43 Sub-string divisibility
Problem 43: Sub-string divisibility
The number, 1406357289, is a 0 to 9 pandigital number because it is made up[……]
Problem 42 Coded triangle numbers
Problem 42: Coded triangle numbers
The nth term of the sequence of triangle numbers is given by, tn = ½n(n+1); s[……]
Problem 41 Pandigital prime
Problem 41: Pandigital prime
We shall say that an n-digit number is pandigital if it makes use of all the digits[……]
Problem 40 Champernowne’s constant
Problem 40: Champernowne’s constant
An irrational decimal fraction is created by concatenating the positive inte[……]
Problem 39 Integer right triangles
Problem 39: Integer right triangles
If p is the perimeter of a right angle triangle with integral length sides,[……]
Problem 38 Pandigital multiples
Problem 38: Pandigital multiples
Take the number 192 and multiply it by each of 1, 2, and 3:
192 × 1 = 192
192 ×[……]
Problem 37 Truncatable primes
Problem 37: Truncatable primes
The number 3797 has an interesting property. Being prime itself, it is possible t[……]