Patrick的博客

题目链接：https://nanti.jisuanke.com/t/30990 A-An Olympian Math Problem Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536K Problem Description Alice, a student of grade 6, is thinking about an...

题目链接：https://nanti.jisuanke.com/t/30994 E-AC Challenge Your task is to calculate the maximum number of points he can get in the contest. Input The first line of input contains an integer, n, whi...

题目链接：https://nanti.jisuanke.com/t/30992 C-GDY Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536K Problem Description Feeling bored, a group of hamsters decide to play a kind of card game ...

题目链接：https://nanti.jisuanke.com/t/31001 L-Magical Girl Haze Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 256MB Problem Description There are N cities in the country, and M directional road...

题目链接：https://nanti.jisuanke.com/t/30999 J-Sum Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 512000K Problem Description A square-free integer is an integer which is indivisible by any squar...

During tea-drinking, princess, amongst other things, asked why has such a good-natured and cute Dragon imprisoned Lpl in the Castle? Dragon smiled enigmatically and answered that it is a big secret. A...

A number is skr, if and only if it’s unchanged after being reversed. For example, “12321”, “11” and “1” are skr numbers, but “123”, “221” are not. FYW has a string of numbers, each substring can prese...

Nim is a famous game as you know. Nim is a 222-player game featuring several piles of stones. Players alternate turns, and on his/her turn, a player’s move consists of removing one or more stones from...