WebNov 4, 2024 · Contains Duplicate. 217. Contains Duplicate. 1. Description. Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the array, and it should return false if every element is distinct. 2. Example. Web给定一个字符串s,找到它的第一个不重复的字符,并返回它的索引。如果不存在,则返回-1。考察哈希表的使用。
Contains-Duplicate-solution-c++ - LeetCode Discuss
WebMay 28, 2015 · bool containsDuplicate(vector& nums) { sort(nums.begin(), nums.end()); for(int i=1; i WebBST.h C+ BSTTest.cpp ": * BST Constructor, which should initialize an empty BST. BST (): + BST Destructor, which should deallocate anything dynanic − B 5 T (3) iot insert a new elenent to this BST * eparan elenent the new elenent to insert. + ereturn true if the insertion was successful, otherwise false (e.g. duplicate) bool insert(int elenent); + Find a query … horseheads greenroom players
LeetCode 217. Contains Duplicate — Python Solution - Medium
WebJan 13, 2024 · bool containsDuplicate (vector& nums) { if (nums.size () == 0 nums.size () == 1) { return false; } unordered_set check; for (auto item : nums) { if … WebJul 24, 2024 · bool containsDuplicate (vector& nums) { int counter = 0; for (int i = 0; i <= nums.size () - 2; i++) for (int j = 1; j <= nums.size () - 1; j++) if (nums [i] == nums [j]) counter++; if (counter == 0) return false; else return true; } WebOct 2, 2024 · For the first time, any element will not be present, so in the else statement it will be inserted into [seen] array later when the same comes next time the [count] return 1 and we return TRUE. In case there are no duplicates we exit the loop and return FALSE. Link to Problem: Contains Duplicate LeetCode. psilocybe casing layer