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#include<iostream>

#include<time.h>

#include<vector>

#include<algorithm>

using namespace std;

int main()

{

vector<int> v;

srand(time(0));

for(int i=0;i<10;i++)

{

v.push_back(i+1);

}

//使用了lambda表达式

for_each(v.begin(),v.end(),[](int n){cout<<n<<' ';});

cout<<endl;

swap_ranges(v.begin(),v.begin()+5,v.begin()+5);

for_each(v.begin(),v.end(),[](int n){cout<<n<<' ';});

cout<<endl;

}