10_41.cpp

来自「C++语言程序设计案例教程,郑莉编的书」· C++ 代码 · 共 16 行

#include <iostream>
#include <numeric>
#include <functional>
#include <vector>
using namespace std;
void main()
{	int iarray[]={1,2,3,4,5};
	vector<int> ivector(iarray,iarray+sizeof(iarray)/sizeof(int));
	cout<<accumulate(ivector.begin(),ivector.end(),0)<<endl; //元素的累计
	cout<<inner_product(ivector.begin(),ivector.end(),ivector.begin(),10)<<endl; //内积
	//向量容器中元素局部求和
	partial_sum(ivector.begin(),ivector.end(),ostream_iterator<int>(cout," "));	cout<<endl;
	//向量容器中相邻元素的差值
	adjacent_difference(ivector.begin(),ivector.end(),ostream_iterator<int>(cout," "));
}