Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime factors are in the given prime list ...

题目： Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime factors are in the given prime list ...

Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. ...

An ugly number is a positive integer that is divisible by a, b, or c. Given four integers n, a, b, and c, return the nth ugly number. Example ...

Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. Example: Note ...

Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example ...

题目： Validate if a given string is numeric. Some examples: "0" => true " 0.1 " => true "abc" ...

题目： Given an array of integers, every element appears twice except for one. Find that single one. ...