Package g0701_0800.s0771_jewels_and_stones

Class Solution

java.lang.Object
g0701_0800.s0771_jewels_and_stones.Solution
public class Solution extends java.lang.Object
771 - Jewels and Stones.

Easy

You’re given strings jewels representing the types of stones that are jewels, and stones representing the stones you have. Each character in stones is a type of stone you have. You want to know how many of the stones you have are also jewels.

Letters are case sensitive, so "a" is considered a different type of stone from "A".

Example 1:

Input: jewels = “aA”, stones = “aAAbbbb”

Output: 3

Example 2:

Input: jewels = “z”, stones = “ZZ”

Output: 0

Constraints:

  • 1 <= jewels.length, stones.length <= 50
  • jewels and stones consist of only English letters.
  • All the characters of jewels are unique.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    numJewelsInStones(java.lang.String jewels, java.lang.String stones)
     

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • numJewelsInStones

      public int numJewelsInStones(java.lang.String jewels, java.lang.String stones)