{"componentChunkName":"component---src-templates-post-template-jsx","path":"/algo/posts/2023-06-06--001","result":{"data":{"site":{"siteMetadata":{"title":"Blog by Eunyoung","subtitle":"작업 기록 블로그","copyright":"© All rights reserved.","author":{"name":"EunYoung","twitter":"#"},"disqusShortname":"","url":"https://ssongey.github.io"}},"markdownRemark":{"id":"7b0e9859-0561-5ad5-add6-19379593efb6","html":"

문제

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public class Test {\n\n    public static void main(String[] args) {\n        System.out.println(containsDuplicate(new int[]{1, 2, 3, 1}));\n        System.out.println((containsDuplicate(new int[]{1, 2, 3, 4})));\n        System.out.println(containsDuplicate(new int[]{1,1,1,3,3,4,3,2,4,2}));\n    }\n\n    public static boolean containsDuplicate(int[] nums) {\n        //\n    }\n}
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결과 및 풀이

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public boolean containsDuplicate(int[] nums) {\n    HashSet<Integer> numBucket = new HashSet<>();\n    \n    for(int num : nums) {\n        if (numBucket.contains(num)) {\n            return true;\n        }\n        numBucket.add(num);\n    }\n    \n    return false;\n}
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배웠다

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