LeetCode 950. Reveal Cards In Increasing Order

Problem Statement

use std::collections::VecDeque;

impl Solution {
    pub fn deck_revealed_increasing(deck: Vec<i32>) -> Vec<i32> {
        let mut d = deck;
        d.sort();
        let (mut q, n, mut ans) = (VecDeque::new(), d.len(), vec![0; d.len()]);
        for i in 0..n {
            q.push_back(i);
        }
        for i in 0..n {
            let mut cur = q.front().unwrap().clone();
            ans[cur] = d[i];
            q.pop_front();
            if q.is_empty() {
                break;
            }
            
            cur = q.front().unwrap().clone();            
            q.push_back(cur);
            q.pop_front();
        }
        return ans;
    }
}