Ultra-QuickSort Time Limit: 7000MS Memory Limit: 65536K Total Submissions: 50517 Accepted: 18534 Description In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swappin…
A Simple Problem with Integers Time Limit: 5000/1500 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5034 Accepted Submission(s): 1589 Problem Description Let A1, A2, ... , AN be N elements. You need to deal with…
Fenwick Tree, (also known as Binary Indexed Tree,二叉索引树), is a high-performance data structure to calculate the sum of elements from the beginning to the indexed in a array. It needs three functions and an array: Array sum; It stores the data of Fenwi…