c++ std:: accumulate code example
Example 1: accumulate c++
#include <numeric> // Accumulate
#include <vector> // Vector
using namespace std;
int main()
{
vector<int> nums{1,2,3,4,5};
int sum = 0;
sum = accumulate(nums.begin(), nums.end(), sum);
// nums.begin() -> first number in a list
// nums.end() -> last number in a list
// sum -> starting value before accumulating: Here its 0
}
Example 2: accumulate() in c++
accumulate(first, last, sum);
first, last : first and last elements of range
whose elements are to be added
suppose array is 'a'.
sum : initial value of the sum
Eg: int sum=0;
accumulate(a.begin(),a.end(),sum);