Module a
Expand description
ยงABC 403 A - Odd Position Sum
refs: https://atcoder.jp/contests/abc403/tasks/abc403_a
use proconio::input;
fn main() {
input! {
n: usize,
a: [usize; n],
}
let result: usize = a
.iter()
.enumerate()
.filter(|(i, _)| i % 2 == 0)
.map(|(_, x)| x)
.sum();
println!("{result}");
}