题意:
给你n个红球和m个蓝色球。然后以相等的概率随机选择了其中两个。选择两个红球的概率是多少?
题目:
Welcome to the CCPC Qinhuangdao Site!
Qinhuangdao is a beautiful coastal city full of charm, integrating historical herit…
题意:
找一个最大的数X,使p%x0且x%q!0,题目保证至少有一个答案满足题意。
题目:
Oleg’s favorite subjects are History and Math, and his favorite branch of mathematics is division.
To improve his division skills, O…
题意:
给定一个长度为2n的数组,将数组分成两个长度为n的数组p,q,将p从小到大排序,将q从大到小排序,对于每种分法,f(p,q)∑i1n\sum_{i1}^{n}∑i1n|xi−yi|.求总和
题目:
You are given an a…
题意:
给你一个集合N(N<35),问集合的子集,除了空集,使得自己中所有元素和的绝对值最小,若存在多个值,那么选择子集中元素最少的那个。
题目:
Given a list of N integers with…