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Codeforces Round #712 (Div. 2) A. Déjà Vu 暴力瞎搞即可,只有全a是不满足的,否则挑选a更多的一端加上a,当然也可以分别加a进行判断。 #include <bits/stdc++.h> using namespace std; int main() { int 阅读全文
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链接:https://ac.nowcoder.com/acm/contest/12548/J 来源:牛客网 题目描述 As a master of parallel computing, schwer is recently considering about the method to achie 阅读全文
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链接:https://ac.nowcoder.com/acm/contest/12548/I 来源:牛客网 题目描述 Mr. Main took a train from city ss to city tt and passed a plain full of windmills. The tra 阅读全文
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Problem Statement Given is a sequence A of N integers. There are 2N−1 non-empty subsequences B of A. Find the sum of max(B)×min(B) over all of them. S 阅读全文