rust_rayon_parallel_iterator_sum_of_squares.rs

1use rayon::prelude::*;
2
3fn main() {
4    let input = (0..100_000_000).collect::<Vec<u64>>();
5    
6    // The `par_iter()` method creates a parallel iterator.
7    // Rayon automatically splits the work across available CPU cores.
8    let sum_of_squares: u64 = input.par_iter()
9                                  .map(|&i| i * i)
10                                  .sum();
11
12    println!("Sum of squares: {}", sum_of_squares);
13}