摘要：
Implement int sqrt(int x).Compute and return the square root of x. 1 class Solution { 2 public: 3 int mySqrt(int x) { 4 unsigned long long... 阅读全文
摘要：
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 arr... 阅读全文
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Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.For examp... 阅读全文
摘要：
Sort a linked list using insertion sort. 1 class Solution { 2 public: 3 ListNode* insertionSortList(ListNode* head) { 4 ListNode *newhead=... 阅读全文