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- use std::time::{Instant};
- const CAPACITY : usize = 240;
- const IN_LOOPS : usize = 500000;
- fn main() {
- let mut arr = [0; CAPACITY];
- for i in 0..CAPACITY {
- arr[i] = i;
- }
- let mut sum = 0;
- let now = Instant::now();
- for _ in 0..IN_LOOPS {
- let mut s = 0;
- for i in 0..arr.len() {
- s += arr[i];
- }
- sum += s;
- }
- println!("sum:{} time:{:?}", sum, now.elapsed());
- }
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