You are given four integers A, B, C, and D. Find the number of integers between A and B (inclusive) that can be evenly divided by neither C nor D.

通过物理测量预测鲍鱼的年龄。鲍鱼的年龄是通过将蛋壳切成圆锥形，对其进行染色并通过显微镜对其进行计数来确定的，这是一项无聊且耗时的工作。其他更容易获得的测量值可用于预测年龄。解决此问题可能需要更多信息，例如天...

Divide two integers without using multiplication, division and mod operator.

做OCR时遇到的一个重要的问题在于检测文本时容易把一段多行文本给检测成单行，这会导致在后期识别部分的准确率降低，毕竟把多行文字当成一行文字去识别，肯定无法得到准确地结果。因此在送入识别之前，需要对检测出的文本框...

Evaluate the value of an arithmetic expression in Reverse Polish Notation.

Implement a basic calculator to evaluate a simple expression string.

Given an array nums of n integers where n > 1, return an array output such that output[i] is equal to the product of all the elements of nums except nums[i].

Given an array of integers with possible duplicates, randomly output the index of a given target number. You can assume that the given target number must exist ...

Divide two integers without using multiplication, division and mod operator.

Given a list of positive integers, the adjacent integers will perform the float division. For example, [2,3,4] -> 2 / 3 / 4.