题目链接: Sum of Medians Time Limit:3000MSMemory Limit:262144KB 问题描述 In one well-known algorithm of finding the k-th order statistics we should divide all elements into groups of five consecutive elements and find the median of each five. A median is cal…
题目链接:点击传送 D. Powerful array time limit per test 5 seconds memory limit per test 256 megabytes input standard input output standard output An array of positive integers a1, a2, ..., an is given. Let us consider its arbitrary subarray al, al + 1..., ar…
Yandex.Algorithm 2018, final round A Smart Vending B LIS vs. LDS C Eat And Walk D Search Engine E Guess Me If You Can 思路:如果n这个位置加1的话,不同的数的个数要么不变,要么加1,反之,如果不同的数的个数减少,肯定不是n这个位置加1 我们random_shuffle()50次,每次把不是n的位置标记一下,这样有很大的概率把所有的不是n的位置都标记了 代码: #pragma GC…
实在太冷了今天 taxi :错误原因1 忽略了 1 1 1 1 和 1 2 1 这种情况,直接认为最多两组一车了 2 语句顺序错 double cola: 忘了减去n的序号1,即n-- B. Taxi time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output After the lessons n groups of schoolchi…
Problem description Sheldon, Leonard, Penny, Rajesh and Howard are in the queue for a "Double Cola" drink vending machine; there are no other people in the queue. The first one in the queue (Sheldon) buys a can, drinks it and doubles! The result…
