#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <functional>
#include <numeric> // 支持的头文件
using namespace std;
// accumulate算法 计算容器元素累计总和
void testAccumulate()
{
vector<int> v1;
for (int i = 0; i < 5; i++)
{
v1.push_back(i);
}
cout << "总和为:" << accumulate(v1.begin(), v1.end(), 0) << endl; // 0起始值
}
// fill算法 向容器中添加元素
void testFill()
{
vector<int> v1;
for (int i = 0; i < 5; i++)
{
v1.push_back(i);
}
fill(v1.begin(), v1.end(), 111);
for_each(v1.begin(), v1.end(), [](int val) {
cout << "fill后:" << val << " "; });
}
int main()
{
testAccumulate();
testFill();
}
stl(12) common algorithm generation algorithm
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Origin blog.csdn.net/qq_40329851/article/details/114464848
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