Array sum in c++ stl
// C++ program to demonstrate working of accumulate()
#include <iostream>
#include <numeric>
using namespace std;
// User defined function that returns sum of
// arr[] using accumulate() library function.
int arraySum(int a[], int n)
{
int initial_sum = 0;
return accumulate(a, a+n, initial_sum);
}
int main()
{
int a[] = {5 , 10 , 15} ;
int n = sizeof(a)/sizeof(a[0]);
cout << arraySum(a, n);
return 0;
}sum array c++
array<int,10> a{1,2,3,4,5,6,7,8,9};
int sum = 0;
//Method 1:
sum = accumulatea(a.begin(), a.end(), 0);
//Method 2:
for(auto& i : a) sum+=i;Copyright © 2021 Codeinu
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