Then merge sort algorithm can be applied to sort the elements, and in an entire program, only the merge sort function can be used for any other working. Example of Merge Sort in C Given below is the example of
1#include<cstdio>2#defineMAX 10013inta[MAX], aux[MAX];45voidmerge_sort(intlo,inthi) {6if(lo <hi) {7intmid = lo + (hi - lo)/2;8merge_sort(lo, mid);9merge_sort(mid+1, hi);1011for(inti = lo; i <= hi; ++i)12aux[i] =a[i];1314intl = lo, r = mid+1;15for(inti...
算法Mergesort(A,p,r)//对数组A的下标p到r之间的数排序1. if pr 2. then q-(p+r)/2]//q为p到r的中点,x是不超过x的最大整数3. Mergesort( A.p.q )4. Mergesort( A. q+1, r )5. Merge( A.p.q.r) //排 数 A[p..q]与A[q+1..r].如果n=2,以比较作为基本运算,试给...
Merge Sort Algorithm: In this tutorial, we will learn about merge sort, its algorithm, and its implementation using C++ program.
ablowmidhighl1l2il1lowl2midilowl1midl2highial1al2bial1elseb[i]=a[l2++];}while(l1<=mid)b[i++]=a[l1++];while(l2<=high)b[i++]=a[l2++];for(i=low;i<=high;i++)a[i]=b[i];}voidsort(intlow,inthigh){intmid;if(low<high){mid=(low+high)/2;sort(low,mid);sort(mid+1,...
[算法]——归并排序(Merge Sort) 归并排序(Merge Sort)与快速排序思想类似:将待排序数据分成两部分,继续将两个子部分进行递归的归并排序;然后将已经有序的两个子部分进行合并,最终完成排序。其时间复杂度与快速排序均为O(nlogn),但是归并排序除了递归调用间接使用了辅助空间栈,还需要额外的O(n)空间进行临时存储。
过程MERGESORT的最坏情况时间是O(nlogn),它的最好情况时间是什么?能说归并分类的时间是Θ(nlogn)吗?最好情况:是对有序文件进行排序。
答:设mergesort(a,0,n-1)的执行次数为T(n),分析得到以下递归关系:O(n)为merge()所需的时间,设为cn(c为常量)。因此:由于趋近于1,则k=log2n。所以上机实验题1实验题1设计一个程序expl-1.cpp,输出所有小于等于n(n为一个大于2的正整数)的素数。要求:(1)每行输出10个素数;(2)尽可能采用较优的算法...
Fig. 9. Contents of test file Sort.dbf. Parameters of all data fields contain in structure g_DataBlock and are presented in the test program. Name field is current, the others are commented out. Certainly, nothing prevents us from calculating these parameters automatically, but it already does...
sort(1g) sortbib(1) sotruss(1) source(1) sox(1) soxi(1) sparc(1) spawn-fcgi(1) spell(1) spellin(1) splain(1) split(1) split(1g) sql(1) squidclient(1) srchtxt(1) ssh-add(1) ssh-agent(1) ssh-http-proxy-connect(1) ssh-keygen(1) ssh-keyscan(1) ssh-socks5-proxy-con...