accumulate（first_index，last_index，sum的初始值）;

//使用STL在数组中找到和的C ++程序
    
#include 
using namespace std;
    
int main()
{
    //获取数组
    int arr [] = {1, 45, 54, 71, 76, 12};
    
    //计算尺寸
    int n = sizeof（arr）/ sizeof（arr [0]）;
    
    //打印数组
    cout <<“Array：”;
    for（int i = 0; i 

Array: 1 45 54 71 76 12 
Sum = 259