Boring count
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 932 Accepted Submission(s): 382
Problem Description
You
are given a string S consisting of lowercase letters, and your task is
counting the number of substring that the number of each lowercase
letter in the substring is no more than K.
Input
In the first line there is an integer T , indicates the number of test cases.
For each case, the first line contains a string which only consist of lowercase letters. The second line contains an integer K.
[Technical Specification]
1<=T<= 100
1 <= the length of S <= 100000
1 <= K <= 100000
Output
For each case, output a line contains the answer.
Sample Input
3
abc
1
abcabc
1
abcabc
2
Sample Output
Source
题意:找出一个字符串里面符合每个字幕出现次数都不大于K次的子串的个数。
题解:数据量达到了10^5,所以O(n^2)肯定不行,所以要用到尺取法。
整个过程分为4布:
1.初始化左右端点
2.不断扩大右端点,直到满足条件
3.如果第二步中无法满足条件,则终止,否则更新结果
4.将左端点扩大1,然后回到第二步
尺取法的过程是上述,但是,对于这题,我们要做少许改动,因为尺取法的条件终止条件是无法满足条件,但是这题我们首先扩充右端点的话是一直到不满足条件(找到某个字母出
现次数大于K的那个串再break),所以这题我们的条件应该改成r在外层循环,找到无法满足条件的子串后再一直扩充左端点,直到满足条件。接下来怎么算子串个数呢?我也不知道
,discuss区里面这样说的。。
aaarticlea/png;base64,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" alt="" />
队友的解释:
aaarticlea/png;base64,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" alt="" />
#include <iostream>
#include <stdio.h>
#include <string.h>
#include <algorithm>
#include <stdlib.h>
#include <math.h>
using namespace std;
typedef long long LL;
const int N = ;
int Hash[N],k;
char str[N];
bool judge(){
for(int i=;i<;i++){
if(Hash[i]>k) return false;
}
return true;
}
int main()
{
int tcase;
scanf("%d",&tcase);
while(tcase--){
scanf("%s",str);
scanf("%d",&k);
int len = strlen(str);
memset(Hash,,sizeof(Hash));
int l=,r=;
LL cnt=;
while(r<len){
Hash[str[r]-'a']++;
while(l<len&&!judge()){
Hash[str[l]-'a']--;
l++;
}
if(!judge()) break;
//printf("%d %d\n",l,r);
cnt =cnt+(r-l+);
r++;
}
printf("%lld\n",cnt);
}
return ;
}
- HDU 6205(尺取法)2017 ACM/ICPC Asia Regional Shenyang Online
题目链接 emmmm...思路是群里群巨聊天讲这题是用尺取法.....emmm然后就没难度了,不过时间上3000多,有点.....盗了个低配本的读入挂发现就降到2800左右, 翻了下,发现神犇Clar ...
- POJ 3320 尺取法(基础题)
Jessica's Reading Problem Description Jessica's a very lovely girl wooed by lots of boys. Recently s ...
- HDU 5358 尺取法+枚举
题意:给一个数列,按如下公式求和. 分析:场上做的时候,傻傻以为是线段树,也没想出题者为啥出log2,就是S(i,j) 的二进制表示的位数.只能说我做题依旧太死板,让求和就按规矩求和,多考虑一下就能发 ...
- 【尺取法好题】POJ2566-Bound Found
[题目大意] 给出一个整数列,求一段子序列之和最接近所给出的t.输出该段子序列之和及左右端点. [思路] ……前缀和比较神奇的想法.一般来说,我们必须要保证数列单调性,才能使用尺取法. 预处理出前i个 ...
- poj 2566 Bound Found(尺取法 好题)
Description Signals of most probably extra-terrestrial origin have been received and digitalized by ...
- hdu 2739(尺取法)
Sum of Consecutive Prime Numbers Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 22876 ...
- hdu 5701 中位数计数 思路题
中位数计数 Time Limit: 12000/6000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Subm ...
- Codeforces Round #364 (Div. 2) C. They Are Everywhere 尺取法
C. They Are Everywhere time limit per test 2 seconds memory limit per test 256 megabytes input stand ...
- codeforces #364c They Are Everywhere 尺取法
C. They Are Everywhere time limit per test 2 seconds memory limit per test 256 megabytes input stand ...
随机推荐
- ActiveMQ发布-订阅消息模式(同点对点模式的区别)
点对点与发布订阅最初是由JMS定义的.这两种模式主要区别或解决的问题就是发送到队列的消息能否重复消费(多订阅) 点对点: 消息生产者生产消息发送到queue中,然后消息消费者从queue中取出并且消费 ...
- Terrorist’s destroy HDU - 4679
Terrorist’s destroy HDU - 4679 There is a city which is built like a tree.A terrorist wants to destr ...
- B - Sonya and Exhibition CodeForces - 1004B (思维题)
B. Sonya and Exhibition time limit per test 1 second memory limit per test 256 megabytes input stand ...
- A JavaScript Image Gallery
childNodes property: The childNodes property is a way of getting information about the children of ...
- 数据结构之B-树
作为文件系统索引的常用数据结构,B-树的查找涉及硬盘和内存两个部分,硬盘的读写将影响查找的速度.传统关系型数据库如Mysql采用B-树作为索引,新型内存数据库levledb通过改进数据组织方式通过内存 ...
- Java JVM 内存空间解析
运行时数据区: 运行时数据区主要分五块,分别是Method Area , VM Stack , Native Method Stack , Heap , program Counter Registe ...
- 学好java,做好工程师必读的15本书
学好java,做好工程师必读的15本书 一.Java编程入门类 对于没有Java编程经验的程序员要入门,随便读什么入门书籍都一样,这个阶段需要你快速的掌握Java基础语法和基本用法,宗旨就是“囫囵 ...
- 数据库路由中间件MyCat - 使用篇(1)
此文已由作者张镐薪授权网易云社区发布. 欢迎访问网易云社区,了解更多网易技术产品运营经验. 基本概念 直接介绍概念太枯燥了,还是拿个和背景篇相似的例子介绍 业务场景:客户完成下单,快递员接受并更新运单 ...
- java之LinkedList.add
LinkedList: public boolean add(E e) { linkLast(e); return true; } void linkLast(E e) { //last为当前集合的最 ...
- jquery怎样获取html页面中的data-xxx
$(this).attr("data-id") // will return the string "123"or .data() (if you use ne ...