B Age Sort Input: Standard Input Output: Standard Output   You are given the ages (in years) of all people of a country with at least 1 year of age. You know that no individual in that country lives for 100 or more years. Now, you are given a very si…

//counting sort 计数排序 //参考算法导论8.2节 #include<cstdio> #include<cstring> #include<algorithm> #include<cassert> using namespace std; ; ; , , , , , , }; int b[n]; ]; int main() { ; memset(c, , sizeof c); ;i<n;i++) { c[a[i]]++; maxn=ma…

Age Sort You are given the ages (in years) of all people of a country with at least 1 year of age. You know that no individual in that country lives for 100 or more years. Now, you are given a very simple task of sorting all the ages in ascending ord…

内存不够用,用计数排序可以解决问题. #include<iostream> #include<cstdio> #include<cstdlib> #include<cstring> #include<string> #include<cmath> #include<map> #include<set> #include<vector> #include<list> #include<…

You are given the ages (in years) of all people of a country with at least 1 year of age. You know that no individual in that country lives for 100 or more years. Now, you are given a very simple task of sorting all the ages in ascending order. Input…

解题报告:给若干个居民的年龄排序,年龄的范围在1到100之间,输入的总人数在0到200W.这题要注意的输入的文件约有25MB,而内存限制为2MB,所以如果人数是像200W这样多的话,甚至都不能把它们都读入内存,所以就不能用快速排序等各种排序,只能通过标记来进行排序,这题很明显的一个特征就是要排序的数字都不大,只有1到100,要排序的数字的个数大于要排序的数字的范围,所以我们可以定义一个数组age[105],然后将他各个都初始化为0,若输入了一个数,则将以这个数为下标的上标相应的加1,表示年龄是这…

★   输入文件:AgeSort.in   输出文件:AgeSort.out   简单对比时间限制:1 s   内存限制:2 MB [题目描述] Mr.Zero(CH)喜闻乐见地得到了一台内存大大增强的 OI型 Apple Ⅱ,可以运行C,C++,和Pascal!为了炫耀这台高端的计算机,Mr.Zero决心将邻居们的年龄(0≤Age[i]≤120)统计后进行统计.但是,古董终究是古董,Mr.Zero拥有最多n个邻居(n≤2,400,000)但是计算机所能运行程序时的内存限制竟然达到了2MB.请你…

计数排序法:计数数组适用于当前数组密集的情况.例如(2,3,5,4,2,3,3,2,5,4) 方法:先找出最大值最小值,之后统计每个数出现的次数,根据次数从小到大往数组里添加 计数排序法是一种不需要比较的排序方法 void count(int top,int length,int arr[]) { ],max=arr[],i=,j=; )); )return; while(i<length)//先找出最大和最小值 { if(min>arr[i]) { min=arr[i]; } if(max&…

今天贴出的算法是计数排序Counting Sort.在经过一番挣扎之前,我很纠结,今天这个算法在一些scenarios,并不是最优的算法.最坏情况和最好情况下,时间复杂度差距很大. 代码CountingSort.h: #include <stdlib.h> namespace dksl { void Sort(int *numArray,int length) { ]; int *temp=new int[length]; ;i<length;i++) { temp[i]=; if(ma…

Bucket Sort is a sorting method that subdivides the given data into various buckets depending on certain characteristic order, thuspartially sorting them in the first go.Then depending on the number of entities in each bucket, it employs either bucke…