数学·位运算模式

两数相除

Solve Divide Two Integers by turning repeated subtraction into bit-shifted chunk subtraction with careful sign and overf…

2 的幂

Determine if a given integer is a power of two using efficient math and bit manipulation techniques with optional recurs…

4的幂

Determine if a given integer is a power of four using math insights and bit manipulation tricks efficiently in code.

两整数之和

Solve the Sum of Two Integers problem using bit manipulation and math to avoid using the operators + and -.

灯泡开关 Ⅱ

Compute all unique bulb configurations after a fixed number of presses using math and bit manipulation efficiently.

二进制表示中质数个计算置位

Count numbers with prime set bits in a binary representation within a given range.

第K个语法符号

Determine the K-th symbol in a recursively generated grammar table using math and bit manipulation patterns efficiently.

将数字变成 0 的操作次数

Reduce a number to zero using bit manipulation and math. Simulate the process step-by-step based on whether the number i…

数组异或操作

Compute the bitwise XOR of a dynamically generated array using a combination of math and bit manipulation techniques eff…

连接连续二进制数字

Calculate the decimal value of concatenated binary numbers from 1 to n using efficient bit manipulation techniques.

找出第 K 个字符 I

Find the K-th character in a progressively built string using math and bit manipulation efficiently.

找出第 K 个字符 II

Find the K-th character in a string game using bit manipulation and recursion, optimizing performance for large k values…

仅含置位位的最小整数

Find the smallest number greater than or equal to n with all set bits in its binary representation.