left_right_2022

分类

题解(45)

/ 注册

全部文章（共45篇）

ZZUACM 2021 省赛训练 2 A-Equalize Prices Again

You are both a shop keeper and a shop assistant at a small nearby shop. You have n goods, the i-th good costs ai coins.You got tired of remembering th...

数学

2021-04-27

0 449

洛谷P1072 [NOIP2009 提高组] Hankson 的趣味题

想了一天才打出来，真TND离谱容易发现lcm(b1,b0)=b1;所以一个想法是基于b1，用删掉一些数的方法枚举x。0.b=b1，ans=1；1.首先判断一些非法的（一定为0的）组合，直接continue;2.保留b中的因子a1,同时删去所有含a0/a1的质因子；3.判断此时lcm(b,b0)是否还...

简单数论数学

2021-04-27

0 539

ZZUACM 2021 省赛训练 1 E-Subsequences (easy version)

The only difference between the easy and the hard versions is constraints.A subsequence is a string that can be derived from another string by deletin...

模拟字符串

2021-04-23

0 507

ZZUACM 2021 省赛训练 1 F-Topforces Strikes Back

One important contest will take place on the most famous programming platform (Topforces) very soon!The authors have a pool of n problems and should c...

贪心数学

2021-04-23

0 482

ZZUACM 2021 省赛训练 1 D-Candy Box (easy version)

This problem is actually a subproblem of problem G from the same contest.There are n candies in a candy box. The type of the i-th candy is ai (1≤ai≤n)...

贪心

2021-04-23

0 419

ZZUACM 2021 省赛训练 1 C-Computer Game

Vova is playing a computer game. There are in total n turns in the game and Vova really wants to play all of them. The initial charge of his laptop ba...

数学

2021-04-23

0 851

ZZUACM 2021 省赛训练 1 B-Equalize Prices

There are n products in the shop. The price of the i-th product is ai. The owner of the shop wants to equalize the prices of all products. However, he...

数学

2021-04-23

0 428

ZZUACM 2021 省赛训练 1 A-Nearest Interesting Number

Polycarp knows that if the sum of the digits of a number is divisible by 3, then the number itself is divisible by 3. He assumes that the numbers, the...

模拟

2021-04-23

0 538

团体程序设计天梯赛-练习集 L1-046-整除光棍

直接用除法算式模拟即可。需要注意的是要先用while扩大被除数（要找的光棍数），后续只用if 即可 #include<bits/stdc++.h> using namespace std; long long x; long long cnt=1; long long k=1; in...

模拟

2021-04-20

0 455

Zhengzhou University programming trial of year 2021 A-斐波那契数列

注意范围，来个简陋的高精度就行了。 #include<bits/stdc++.h> using namespace std; long long f[310][10010]; long long cnt[310]; inline void add(int x,int y,int z) {...

高精度

2021-04-20

0 506