#include<iostream>
using namespace std;
#include <deque>
//deque构造函数
void printDeque(const deque<int>& d)
{
for (deque<int>::const_iterator it = d.begin(); it != d.end(); it++)
{
//*it = 100; 容器中的数据不可以修改了
cout << *it << " ";
}
cout << endl;
}
//deque构造
void test01()
{
deque<int> d1; //无参构造函数
for (int i = 0; i < 10; i++)
{
d1.push_back(i);
}
printDeque(d1);
deque<int> d2(d1.begin(),d1.end());
printDeque(d2);
deque<int>d3(10,100);
printDeque(d3);
deque<int>d4 = d3;
printDeque(d4);
}
int main()
{
test01();
system("pause");
return 0;
}
#include<iostream>
using namespace std;
#include <deque>
//deque容器赋值操作
void printDeque(const deque<int>& d)
{
for (deque<int>::const_iterator it = d.begin(); it != d.end(); it++)
{
cout << *it << " ";
}
cout << endl;
}
//赋值操作
void test01()
{
deque<int> d1;
for (int i = 0; i < 10; i++)
{
d1.push_back(i);
}
printDeque(d1);
//operator= 赋值
deque<int>d2;
d2 = d1;
printDeque(d2);
//assign赋值
deque<int>d3;
d3.assign(d1.begin(), d1.end());
printDeque(d3);
deque<int>d4;
d4.assign(10, 100);
printDeque(d4);
}
int main()
{
test01();
system("pause");
return 0;
}
#include<iostream>
using namespace std;
#include <deque>
//deque容器大小操作
void printDeque(const deque<int>& d)
{
for (deque<int>::const_iterator it = d.begin(); it != d.end(); it++)
{
cout << *it << " ";
}
cout << endl;
}
//大小操作
void test01()
{
deque<int> d1;
for (int i = 0; i < 10; i++)
{
d1.push_back(i);
}
printDeque(d1);
//判断容器是否为空
if (d1.empty())
{
cout << "d1为空!" << endl;
}
else
{
cout << "d1不为空!" << endl;
//统计大小
cout << "d1的大小为：" << d1.size() << endl;
//deque容器没有容量概念
}
//重新指定大小
d1.resize(15, 1);
printDeque(d1);
d1.resize(5);
printDeque(d1);
}
int main()
{
test01();
system("pause");
return 0;
}
#include<iostream>
using namespace std;
#include <deque>
//deque容器插入和删除
void printDeque(const deque<int>& d)
{
for (deque<int>::const_iterator it = d.begin(); it != d.end(); it++)
{
cout << *it << " ";
}
cout << endl;
}
//两端操作
void test01()
{
deque<int> d;
//尾插
d.push_back(10);
d.push_back(20);
//头插
d.push_front(100);
d.push_front(200);
printDeque(d);
//尾删
d.pop_back();
//头删
d.pop_front();
printDeque(d);
}
//插入
void test02()
{
deque<int> d;
d.push_back(10);
d.push_back(20);
d.push_front(100);
d.push_front(200);
printDeque(d);
//insert插入
d.insert(d.begin(), 1000);
printDeque(d);
d.insert(d.begin(), 2,10000);
printDeque(d);
//按照区间进行插入
deque<int>d2;
d2.push_back(1);
d2.push_back(2);
d2.push_back(3);
d.insert(d.begin(), d2.begin(), d2.end());
printDeque(d);
}
//删除
void test03()
{
deque<int> d;
d.push_back(10);
d.push_back(20);
d.push_front(100);
d.push_front(200);
printDeque(d);
//删除
d.erase(d.begin());
printDeque(d);
//按区间方式删除
d.erase(d.begin(), d.end());
//清空
d.clear();
printDeque(d);
}
int main()
{
//test01();
//test02();
test03();
system("pause");
return 0;
}
#include<iostream>
using namespace std;
#include <deque>
//deque容器数据存取
//数据存取
void test01()
{
deque<int> d;
d.push_back(10);
d.push_back(20);
d.push_front(100);
d.push_front(200);
//通过[]方式访问元素
for (int i = 0; i < d.size(); i++)
{
cout << d[i] << " ";
}
cout << endl;
//通过at方式访问元素
for (int i = 0; i < d.size(); i++)
{
cout << d.at(i) << " ";
}
cout << endl;
cout << "front:" << d.front() << endl;
cout << "back:" << d.back() << endl;
}
int main()
{
test01();
system("pause");
return 0;
}
#include<iostream>
using namespace std;
#include <deque>
#include <algorithm>//标准算法头文件
//deque容器排序
void printDeque(const deque<int>& d)
{
for (deque<int>::const_iterator it = d.begin(); it != d.end(); it++)
{
cout << *it << " ";
}
cout << endl;
}
void test01()
{
deque<int> d;
d.push_back(10);
d.push_back(20);
d.push_front(100);
d.push_front(200);
printDeque(d);
//排序 默认排序规则 从小到大 升序
//对于支持随机访问的迭代器的容器，都可以利用sort算法直接对其进行排序
//vector容器也可以利用 sort进行排序
sort(d.begin(), d.end());
printDeque(d);
}
int main()
{
test01();
system("pause");
return 0;
}
