如何在C++中用STL找到向量的元素之和
示例
#include <bits/stdc++.h>
using namespace std;
int main(){
//定义向量
vector<int> a = { 1, 45, 54, 71, 76, 12 };
cout << "Vector: ";
for (int i = 0; i < a.size(); i++)
cout << a[i] << " ";
cout << endl;
//计算元素的和
cout << "Sum = "<< accumulate(a.begin(), a.end(), 0);
return 0;
}输出结果
Vector: 1 45 54 71 76 12 Sum = 259