ARST打卡第331周

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impl Solution {
    pub fn sum_zero(n: i32) -> Vec<i32> {
        let mut result = vec![];
        if n & 1 == 1 {
            result.push(0);
        }
        // 因为下标从1开始，所以后面的尾数也需要+1
        for i in 1..n/2 + 1 {
            result.push(i);
            result.push(-i);
        }
        result
    }
}