摘要：
Shortest PalindromeGiven a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Find and return the shortest p... 阅读全文
摘要：
Kth Largest Element in an ArrayFind thekth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the ... 阅读全文