What is std::accumulate in C++?

Can you explain what std::accumulate does in C++?

Sure! std::accumulate is a function in the C++ Standard Library that computes the sum of a range of elements.

How do I use std::accumulate with a vector?

You can use it by including the <numeric> header and calling it like this: std::accumulate(vec.begin(), vec.end(), initial_value);

What does the initial value parameter do?

The initial value is the starting point for the accumulation. If you set it to 0, it will sum all elements in the vector.

Can I use std::accumulate with other operations besides addition?

Yes, you can! You can pass a custom binary operation as the fourth argument to perform different calculations.