找出一定没问题的字符(即一连串的额字符x个数能被k整除的),剩下的字符都是可能有问题的. #include<cstdio> #include<cstring> #include<cmath> #include<vector> #include<map> #include<queue> #include<stack> #include<algorithm> using namespace std; int k;…

简单题. #include<cstdio> #include<cstring> #include<cmath> #include<vector> #include<map> #include<queue> #include<stack> #include<algorithm> using namespace std; ; char s[maxn],t[maxn],u[maxn]; ]; int main() {…

题意: 输入一个正整数K(1<K<=100),接着输入一行字符串由小写字母,数字和下划线组成.如果一个字符它每次出现必定连续出现K个,它可能是坏键,找到坏键按照它们出现的顺序输出(相同坏键仅输出一次,数据保证必定存在坏键),接着输出将坏键修好后原本的字符串(K个连续坏键只输出一次). trick: 测试点1答案错误原因:出现次数为K的倍数而不是大于等于K 测试点2,3错误原因:输出原字符串时没有检验最后一段连续相同字符是否为坏键(循环当中没有检验这一段) AAAAAccepted code:…

PAT (Advanced Level) Practice 1035 Password (20 分) 凌宸1642 题目描述: To prepare for PAT, the judge sometimes has to generate random passwords for the users. The problem is that there are always some confusing passwords since it is hard to distinguish 1 (o…

PAT (Advanced Level) Practice 1008 Elevator (20 分) 凌宸1642 题目描述: The highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at which floors the elevator will stop, in specified order.…

题意:给定一个k,键盘里有些键盘卡住了,按一次会打出k次,要求找出可能的坏键,按发现的顺序输出,并且输出正确的字符串顺序. map<char,int>用来标记一个键是否为坏键,一开始的时候都为0,表明所有的键为坏键. 然后遍历每个字符,统计当前字符连续出现的次数cnt,则只要存在cnt%k!=0,则表明为好键,另其map=1. 最后再for一遍字符串,存储坏键字符串和正确字符串,最后输出即可. #include <iostream> #include <cstdio>…

To prepare for PAT, the judge sometimes has to generate random passwords for the users. The problem is that there are always some confusing passwords since it is hard to distinguish 1 (one) from l (L in lowercase), or 0 (zero) from O (o in uppercase)…

没什么难的,简单模拟题 #include <iostream> using namespace std; int main() { int num; cin>>num; int cost = 0; int curFloor = 0; while (num--) { int floor; cin>>floor; int tmp = floor - curFloor; cost += tmp > 0 ? 6 * tmp : -4 * tmp; cost += 5; c…

简单模拟. #include<cstdio> #include<cstring> #include<cmath> #include<vector> #include<map> #include<queue> #include<stack> #include<algorithm> using namespace std; ]; int n; int num,num2,pos; bool f() { ; ;s[i]…

简单题. #include<cstdio> #include<cstring> #include<cmath> #include<vector> #include<map> #include<queue> #include<stack> #include<algorithm> using namespace std; ][]={ "tret","jan", "f…