You are given following:- - an array A consisting of N positive integers - Q queries of the form L,R,M consider all subsequences of subarray from L to R of size M. Determine the sum of Bitwise OR of all these subsequences. Bitwise OR of an empty subsequence is 0. If there is no ...
Consider N boxes numbered 1 to N. Each box can house any number of chocolates. And initially all the boxes are empty. There are two types of queries that can be posed by the throwers. a. 0 l r -> Add chocolates to the boxes between the index l and r (inclusive) such that l'th...
由于随着右端点的增加圆肯定不断变大,所以右端点可以分成三段:[l,mid][l,mid]对应的圆完全包含[mid+1,r][mid+1,r]对应的圆,不存在包含关系和[l,mid][l,mid]对应的圆完全被[mid+1,r][mid+1,r]对应的圆包含,用 two pointers 维护三段分界点,左右两段显然可以O(1)O(1)求得,中间那段相当于要你维...
2019-12-12 08:00 − 原题链接在这里:https://leetcode.com/problems/range-sum-of-bst/ 题目: Given the root node of a binary search tree, return the sum of values of all nod... Dylan_Java_NYC 0 487 Codeforces Round #608 (Div. 2) D Portals 2019-12-19 17:03 − #include...
Your task is to replace the minimum number of elements (replacement is the following operation: choose some index ii from 11 to nn and replace aiai with some integer in range [1;k][1;k]) to satisfy the following conditions: after all replacements, all aiai are positive integers not greate...
[LeetCode] 304. Range Sum Query 2D - Immutable 2019-12-10 11:35 −Medium Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corner (row1, col1) and lower ri... 程嘿嘿 0
http://www.lintcode.com/en/problem/submatrix-sum/?rand=true 请参阅 Range Sum Query 2D - Immutable...LintCode 406: Minimum Size Subarray Sum (同向双指针经典题!!!) Minimum Size Subarray Sum Given an array of n positive integers and a positive integer s, find the minimal length of a ...
Your task is to replace the minimum number of elements (replacement is the following operation: choose some index ii from 11 to nn and replace aiai with some integer in range [1;k][1;k]) to satisfy the following conditions: after all replacements, all aiai are positive integers not greate...
数据结构(线段树):CodeForces 85D Sum of Medians D. Sum of Medians time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output In one well-known algorithm of finding the k-th order statistics we should divide all elements into groups of five...
Your task is to replace the minimum number of elements (replacement is the following operation: choose some index i from 1 to n and replace ai with some integer in range [1;k]) to satisfy the following conditions: after all replacements, all ai are positive integers not greater than k; ...