题解 | #买卖股票的最好时机(一)# | Rust

struct Solution{

}

impl Solution {
    fn new() -> Self {
        Solution{}
    }

    /**
    * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
    *
    * 
        * @param prices int整型一维数组 
        * @return int整型
    */
    pub fn maxProfit(&self, prices: Vec<i32>) -> i32 {
        let mut profit : i32 = 0;
        let mut min_price : i32 = std::i32::MAX;
        for (_,&price) in prices.iter().enumerate() {
            profit = std::cmp::max(profit, price - min_price);
            min_price = std::cmp::min(min_price, price);
        }
        return profit;
    }
}