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当我们做后仿时我们究竟在仿些什么(四)

就像人类容易接受自然数,但对于负数缺乏某种直觉上的认识一样;后仿过程中经常出现的 Negative Delay 和 Negative Timing Check 也非常容易使人困惑。

2020-09-29
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JavaWeb--简单分页技术

分页需要的技术点:1.前台分页标签的使用         2.前台上一页,下一页显示的业务逻辑         3.MSQL用到的语句 limit         4.封装pageBean对象这个是PageBean用到的分页公式:int total...

2020-09-28
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Codeforces Round #629 (Div. 3) F. Make k Equal (技巧暴力,类前缀和,思维,数学)

You are given the array aa consisting of nn elements and the integer k≤nk≤n.

2020-09-28
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Codeforces Round #613 (Div. 2)B. Just Eat It!

Today, Yasser and Adel are at the shop buying cupcakes. There are nn cupcake types, arranged from 11 to nn on the shelf, and there are infinitely many of each t...

2020-09-28
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Codeforces Round #613 (Div. 2)A. Mezo Playing Zoma

Today, Mezo is playing a game. Zoma, a character in that game, is initially at position x=0x=0. Mezo starts sending nn commands to Zoma. There are two possible ...

2020-09-28
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Codeforces Round #615 (Div. 3)A. Collecting Coins

Polycarp has three sisters: Alice, Barbara, and Cerene. They're collecting coins. Currently, Alice has aa coins, Barbara has bb coins and Cerene has cc coins. R...

2020-09-28
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Codeforces Round #199 (Div. 2)C. Cupboard and Balloons

A girl named Xenia has a cupboard that looks like an arc from ahead. The arc is made of a semicircle with radius r (the cupboard's top) and two walls of height ...

2020-09-28
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2018-2019 ICPC, NEERC, Southern Subregional Contest D. Garbage Disposal

Enough is enough. Too many times it happened that Vasya forgot to dispose of garbage and his apartment stank afterwards. Now he wants to create a garbage dispos...

2020-09-28
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2019.8.15乘兴打Codeforces Round #569 (Div. 2)小记

Recently, on the course of algorithms and data structures, Valeriy learned how to use a deque. He built a deque filled with nn elements. The ii-th element is ai...

2020-09-28
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2019.8.15乘兴打Codeforces Round #569 (Div. 2)小记B. Nick and Array

B. Nick and Array time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Nick had received an awesome arr...

2020-09-28
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