#include <iostream>
using namespace std;
#include <algorithm>
#include <vector>
#include <numeric>
void myprint4(int val)
{
cout << val << " ";
}
//一、accumulate
/*
accumulate(iterator beg, iterator end, value);
计算容器元素累计总和
beg开始迭代器
end结束迭代器
value起始值
*/
void t00001()
{
vector<int> v1;
for (int i = 0; i <= 100; i++)
{
v1.push_back(i);
}
int sum = accumulate(v1.begin(), v1.end(), 110);//110相当于基数,在110的基础上加5050
cout << "sum:" << sum;
}
//二、fill
/*
fill(iterator beg, iterator end, value);
向容器中填充元素
beg开始迭代器
end结束迭代器
value填充的值
*/
void t00002()
{
vector<int> v1;
v1.resize(10);
for_each(v1.begin(), v1.end(), myprint4);
cout << endl;
fill(v1.begin(), v1.end(), 100);
for_each(v1.begin(), v1.end(), myprint4);
cout << endl;
}
int main()
{
t00002();
return 0;
}