题目 One unknown hacker wants to get the admin's password of AtForces testing system, to get problems from the next contest. To achieve that, he sneaked into the administrator's office and stole a piece of paper with a list of nnn passwords - strings,…

D. Secret Passwords One unknown hacker wants to get the admin's password of AtForces testing system, to get problems from the next contest. To achieve that, he sneaked into the administrator's office and stole a piece of paper with a list of n passwo…

链接: https://codeforces.com/contest/1263/problem/D 题意: One unknown hacker wants to get the admin's password of AtForces testing system, to get problems from the next contest. To achieve that, he sneaked into the administrator's office and stole a piec…

题目链接:https://codeforces.com/contest/1263/problem/D 题意:有n个小写字符串代表n个密码,加入存在两个密码有共同的字母,那么说这两个密码可以认为是同一个集合,可以互相破解,先求有多少个不同集合的密码 思路:简单的并查集.首先一共有26个字母,对于每个密码,我们合并其所涵盖的字母,例如密码1:abcd,那么abcd合并起来,含有abcd的任意密码都同属于一个集合,所有我们把n个密码串先做一次合并.最终再扫一遍所有的密码串,用set维护集合的个数,最终…

Secret Combination Time Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 496B Description You got a box with a combination lock. The lock has a display showing n digits. There are two buttons…

题目链接:http://codeforces.com/problemset/problem/496/B 题目意思:给出 n 位数你,有两种操作:1.将每一位数字加一(当某一位 > 9 时只保存个位数)   2.循环右移(最右边那个数字去到第一位上).问经过若个两种操作的组合后,得到的最小数值为多少. 我一开始用了vector来做= =,没有考虑到循环右移的情况.以为每一位从1加到9之后,找出最小的那个就可以..... 留个纪念(错误代码,别学,如果没有循环右移的限制,这个是对的) #includ…

题目链接: B. Passwords time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Vanya is managed to enter his favourite site Codehorses. Vanya uses n distinct passwords for sites at all, however he can…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Vanya is managed to enter his favourite site Codehorses. Vanya uses n distinct passwords for sites at all, however he can't remember which one e…

[Codeforces]1263A Sweet Problem [Codeforces]1263B PIN Code [Codeforces]1263C Everyone is a Winner! [Codeforces]1263D Secret Passwords [Codeforces]1263E Editor…

传送门 感觉脑子还是转得太慢了QAQ,一些问题老是想得很慢... A. Sweet Problem 签到. Code /* * Author: heyuhhh * Created Time: 2019/11/29 22:36:19 */ #include <iostream> #include <algorithm> #include <vector> #include <cmath> #include <set> #include <ma…