Package g0901_1000.s0970_powerful_integers

Class Solution

java.lang.Object

g0901_1000.s0970_powerful_integers.Solution

public class Solution
extends Object

970 - Powerful Integers.

Medium

Given three integers x, y, and bound, return a list of all the powerful integers that have a value less than or equal to bound.

An integer is powerful if it can be represented as xi + yj for some integers i >= 0 and j >= 0.

You may return the answer in any order. In your answer, each value should occur at most once.

Example 1:

Input: x = 2, y = 3, bound = 10

Output: [2,3,4,5,7,9,10]

Explanation:

2 = 2⁰ + 3⁰

3 = 2¹ + 3⁰

4 = 2⁰ + 3¹

5 = 2¹ + 3¹

7 = 2² + 3¹

9 = 2³ + 3⁰

10 = 2⁰ + 3²

Example 2:

Input: x = 3, y = 5, bound = 15

Output: [2,4,6,8,10,14]

Constraints:

• 1 <= x, y <= 100
• 0 <= bound <= 106

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
List<Integer>	powerfulIntegers(int x, int y, int bound)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Solution

public Solution()

Method Detail

powerfulIntegers

public List<Integer> powerfulIntegers(int x,
                                      int y,
                                      int bound)