[C++] vector 之 accumulate 用法示例

#include <iostream>
#include <vector>
#include <numeric>
#include <iterator>
#include <algorithm>
using namespace std;

int main() {
	vector<int> v;
	for(int i = 0; i < 10; i++) {
		v.push_back(i);
	}
	vector<int>::iterator it = v.begin();
	for(; it != v.end(); ++it) {
		cout << *it << ' ';
	}
	cout << endl;
	int sum = accumulate(v.begin(), v.end(), 100);  
	cout << sum << endl;
	return 0;
}