点我看题 G - Sequence in mod P 稍微观察一下就会发现,进行x次操作后的结果是\(A^xS+(1+\cdots +A^{x-1})B\).如果没有右边那一坨关于B的东西,那我们要求的就是满足\(A^x \equiv \frac GS\)的最小的x(离散对数).有一个叫BSGS的东西是专门干这个的 考虑能不能把这个式子直接化成\(A^x \equiv B\)的形式.先把答案=0.A=0和A=1的情况特判掉,因为会影响后面推式子. \[\begin{align} A^xS+(1+…
A - ABC/ARC Time limit : 2sec / Memory limit : 256MB Score : 100 points Problem Statement Smeke has decided to participate in AtCoder Beginner Contest (ABC) if his current rating is less than 1200, and participate in AtCoder Regular Contest (ARC) oth…
A - Happy Birthday! Time limit : 2sec / Memory limit : 1000MB Score: 100 points Problem Statement E869120's and square1001's 16-th birthday is coming soon.Takahashi from AtCoder Kingdom gave them a round cake cut into 16 equal fan-shaped pieces. E869…
A - Rating Goal Time limit : 2sec / Memory limit : 256MB Score : 100 points Problem Statement Takahashi is a user of a site that hosts programming contests.When a user competes in a contest, the rating of the user (not necessarily an integer) changes…
A - ABCxxx Time limit : 2sec / Memory limit : 256MB Score : 100 points Problem Statement This contest, AtCoder Beginner Contest, is abbreviated as ABC. When we refer to a specific round of ABC, a three-digit number is appended after ABC. For example,…
AtCoder Beginner Contest 184 题解 目录 AtCoder Beginner Contest 184 题解 A - Determinant B - Quizzes C - Super Ryuma D - increment of coins E - Third Avenue F - Programming Contest 这把怎么感觉题目都比以往的ABC水啊,拜此所赐我只是程序写得慢就排名狂掉( A - Determinant 求二阶矩阵的行列式,是小学常见自定义题目(…