[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"searchBlogPosts":3,"$ffNrZOYcgdcUFt84qYilXlDySeDmyTu7mLFKbhQL0n0Y":7},[4],{"_path":5,"title":6},"\u002Fblog\u002F2023\u002F09\u002F17\u002Fspring-boot-postgresql","Spring Boot with PostgreSQL & pgAdmin in Docker",{"title":8,"category":9,"problemHtml":10,"solutions":11,"repoUrl":20},"Duplicate Integer","Data Structures & Algorithms","",[12,16],{"lang":13,"label":14,"html":15},"java","Java","\u003Cpre>\u003Ccode class=\"language-java\">class Solution {\n    public boolean hasDuplicate(int[] nums) {\n        \n        Set<Integer> set = new HashSet<>();\n\n        for(int i : nums){\n\n            if(set.contains(i)) return true;\n\n            set.add(i);\n        }\n\n        return false;\n    }\n}\u003C\u002Fcode>\u003C\u002Fpre>",{"lang":17,"label":18,"html":19},"python","Python","\u003Cpre>\u003Ccode class=\"language-python\">class Solution:\n    def hasDuplicate(self, nums: List[int]) -> bool:\n        hashSet = set()\n\n        for num in nums:\n            if num in hashSet:\n                return True\n            hashSet.add(num)\n\n        return False\u003C\u002Fcode>\u003C\u002Fpre>","https:\u002F\u002Fgithub.com\u002Fvishwarajsali\u002FInterviewPrep\u002Ftree\u002Fmain\u002FData%20Structures%20%26%20Algorithms%2Fduplicate-integer"]