原创 Gym - 101612A 點亮數字
Auxiliary Project Anna has just nished her course project. She has a lot of seven-segment LED displays as leftover
2020-06-21 00:59:35
2
原创 線段樹（動態建點）
敵兵佈陣 Problem Description C國的死對頭A國這段時間正在進行軍事演習，所以C國間諜頭子Derek和他手下Tidy又開始忙乎了。A國在海岸線沿直線佈置了N個工兵營地,Derek和Tidy的任務就是要監視這些工兵
2020-06-20 16:56:20
原创 JavaScript & php 正則表達式
百度搜出來這東西。。。 PHP中創建字符串，使用正則匹配函數，返回true/false <?php $pattern="/\w{6,20}/"; $str="djkduhgk"; preg_match($pattern,$s
2020-06-20 16:56:20
原创 分糖果
CF-gym-334-A Gerald has n younger brothers and their number happens to be even. One day he bought n2 candy bags. On
2020-02-21 21:59:35
原创 Lucas 組合數取模
組合數取模就是求 CnmmodpCmnmodp 的值，當然根據n,m,pn,m,p 的取值範圍不同，採取的方法也不一樣。 pp 比較大就只能一個一個算如 LL C_one_by_one(LL n, LL m)//組合數一個一個算
2020-02-21 21:59:35
原创 Sunday 字符串匹配
主串爲s，模式串爲p s=abcdefg p=efg i abcdefg j efg 首先從頭開始比較，第一個字符不一樣，那麼新的下標m=i+ p.length,即s[m]=’d’ 然後在p中從後往前找’d’ ，即i
2020-02-21 21:59:35
原创 Cover Point (DP)
Cover Time Limit: 1000MS Memory Limit: 65536K You are given N points in the coordinate system. They need to
2020-02-21 21:59:35
原创 機器人指令縮減【模擬】
CF-GYM-101608-E You built a new robot that moves over r × c grid. The rows of the grid are numbered from 1 to r fro
2020-02-21 21:59:34
原创 Arthur's Language
CF-101628-A Arthur is an extremely important person and rarely has the time to talk. To minimize the time spent wit
2020-02-21 21:59:34
原创 小小粉絲度度熊【尺取】
小小粉絲度度熊 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description 度度熊喜歡
2020-02-21 21:59:34
原创 宇宙通信
CF-101466-C Lately the communication between planets has been an important issue, which is why the Earth has made m
2020-02-21 21:59:34
原创 二維線段樹之降維打擊
COCI 2017/2018 ROUND#1Deda Little Marica is making up a nonsensical unusual fairy tale and is telling to her grandf
2020-02-21 21:59:34
1
原创 Chess
Chess Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description 車是中國象棋中
2020-02-21 21:59:34
原创 Yet Another Tree Query Problem(二維線段樹）
Yet Another Tree Query Problem Time Limit: 3 Seconds Memory Limit: 65536 KB Given a tree with vertices, which
2020-02-21 21:59:34
原创 Winning Cells
GYM-101608-M You and your friend decided to play a new game using a squared chessboard of size n × n and one rook.
2020-02-21 21:59:34