What is the efficient way to count set bits at a position or lower?(在一个位置或更低位置计算设置位的有效方法是什么?)

How to find which elements are in the bag, using Knapsack Algorithm [and not only the bag#39;s value]?(如何使用背包算法(不仅是包的价值)找到包中的哪些元素?)

Fast exact bigint factorial(快速精确 bigint 阶乘)

Magic number in boost::hash_combine(boost::hash_combine 中的幻数)

Creating all possible k combinations of n items in C++(在 C++ 中创建 n 个项目的所有可能的 k 组合)

Efficient implementation of log2(__m256d) in AVX2(AVX2中log2(__m256d)的高效实现)

Why will std::sort crash if the comparison function is not as operator lt;?(如果比较函数不是运算符 lt;，为什么 std::sort 会崩溃?)

Fast ceiling of an integer division in C / C++(C/C++ 中整数除法的快速上限)

Finding duplicates in O(n) time and O(1) space(在 O(n) 时间和 O(1) 空间中查找重复项)

Getting the actual length of a UTF-8 encoded std::string?(获取 UTF-8 编码的 std::string 的实际长度?)

Fast String Hashing Algorithm with low collision rates with 32 bit integer (具有 32 位整数的低冲突率的快速字符串散列算法)

Emulate quot;doublequot; using 2 quot;floatquot;s(模拟“双重使用 2 个“浮动)

Where can I get a quot;usefulquot; C++ binary search algorithm?(我在哪里可以得到一个“有用的?C++二分查找算法?)

Algorithm for finding the smallest power of two that#39;s greater or equal to a given value(查找大于或等于给定值的 2 的最小幂的算法)

How can I sort an STL map by value?(如何按值对 STL 映射进行排序?)

c++ sort keeping track of indices(c ++ sort 跟踪索引)

How can I find the actual path found by BFS?(如何找到 BFS 找到的实际路径?)

Need for predictable random generator(需要可预测的随机生成器)

Splitting a string by a character(按字符拆分字符串)

How to Compile for OS X in Linux or Windows?(如何在 Linux 或 Windows 中为 OS X 编译?)