Adding/summing two arrays

Question

I\'ve encountered a purely hypothetical problem which feels like it has an easy solution if I find the right linq method...

I have two arrays of ints and I know they are

Answer 1

You can use the Select method.

int[] a = new[] { 1, 2, 3 };
int[] b = new[] { 10, 20, 30 };

var c = a.Select ((x, index) => x + b[index]).ToArray();