原创 codeforces 573A （數論）
題意描述 Limak is an old brown bear. He often plays poker with his friends. Today they went to a casino. There are n pl
2020-05-25 13:42:35
原创 codeforces 698A（暴力）
題意描述 Vasya has n days of vacations! So he decided to improve his IT skills and do sport. Vasya knows the following
2020-05-25 13:42:35
原创 B. Ternary String（貪心）
題意描述 You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest co
2020-05-19 04:34:08
原创 codeforce 1263C （整除分塊）
題意描述 給定你一個n，讓你求出所有的n/i(下取整) 思路 這道題想了很久，打表發現了規律，每個值相同的塊，最後一個因子都是n/(n/i)，但找到規律以後不知道該如何實現，看了題解以後才發現這是一道整數分塊的問題。 核心代碼：
2020-05-12 15:47:39
原创 codeforce893C (並查集)
題意描述 Vova promised himself that he would never play computer games… But recently Firestorm — a well-known game deve
2020-05-10 09:44:20
原创 codeforce1178B （DP）
題意描述 Recall that string a is a subsequence of a string b if a can be obtained from b by deletion of several (possib
2020-05-05 09:21:32
原创 codeforce1196C
題意描述 n robots have escaped from your laboratory! You have to find them as soon as possible, because these robots ar
2020-05-05 09:21:32
原创 天清江月白，心靜海鷗知 （4.26每週總結）
個人總結 不知不覺間已經要步入五月份了，由於疫情的原因，從放假到現在已經過了三個月。在家的日子如何呢？自然是非常舒服的。但有利便有弊，在家的舒服換來的是學習效率的低下：同樣是學習，在學校學習一週學到的知識足足是在家
2020-04-27 08:17:14
原创 Yet Another Walking Robot （Map）
題意描述 There is a robot on a coordinate plane. Initially, the robot is located at the point (0,0). Its path is descri
2020-04-20 16:41:38
原创 B. Minimize the Permutation (貪心)
題意描述 You are given a permutation of length n. Recall that the permutation is an array consisting of n distinct inte
2020-04-20 16:41:38
原创 189A Cut Ribbon(dp)
題意 Polycarpus has a ribbon, its length is n. He wants to cut the ribbon in a way that fulfils the following two con
2020-04-11 04:33:35
原创 4C - Registration System （Map）
題意描述 A new e-mail service “Berlandesk” is going to be opened in Berland in the near future. The site administration
2020-04-11 04:33:35
原创 花開堪折直須折，莫待無花空折枝
花開堪折直須折，莫待無花空折枝 想要寫些什麼，卻又不知從何寫起；想要做些什麼，卻又不知如何來做。這就是我這段時間的內心活動。 由於疫情的原因，本該早早去學的我們，被迫呆在了家裏，在家裏學習和在學校學
2020-03-29 06:45:55
原创 POJ3279 （二進制枚舉）
題意描述 Farmer John knows that an intellectually satisfied cow is a happy cow who will give more milk. He has arranged
2020-03-21 16:27:47
原创 HDOJ 1018（數論）
題意描述 Problem Description In many applications very large integers numbers are required. Some of these applications
2020-03-18 14:31:31