[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;
}