选择算法

#include<iostream>
#include"stdlib.h"
#define	random(x)	(rand()%x)
using namespace std;
int count2=0;

void swap(int a,int b){
	int t;
	t=a;a=b;b=t;
	count2++;
}

void cjsz(int aa[],int n){
	for(int i=0;i<n;i++){
		aa[i]=random(101);
		cout<<aa[i]<<" ";
	}
}

void scsz(int aa[],int n){
	for(int j=0;j<n;j++){
		cout<<aa[j]<<" ";
	}
}

void bubble_sort(int aa[],int n){
	for(int i=n-1;i>0;i--){
		for(int j=0;j<i;j++){
			if(aa[j]>aa[j+1])
				swap(aa[j],aa[j+1]);
		}
	}
}

int main(){
	int n;
	cout<<"输入待查找元素个数n=";
	cin>>n;

	cout<<endl<<"产生"<<n<<"个0-100之间的随机整数为：";
	int * A;
	A=new int[n];
	cjsz(A,n);

	cout<<endl<<endl<<"排序后数组为：";
	bubble_sort(A,n);
	scsz(A,n);

	int k;
	cout<<endl<<endl<<"输出第k小的元素，k=";
	cin>>k;
	cout<<"第"<<k<<"小的元素为："<<A[k-1]<<endl;
	return 0;
}