买卖股票的最佳时机

买卖股票的最佳时机

/**
 * @param {number[]} prices
 * @return {number}
 */
var maxProfit = function(prices) {
    let max = 0
    let min = prices[0]
    for (let i = 1; i < prices.length; i++) {
        min = Math.min(min, prices[i])
        max = Math.max(max, prices[i] - min)
    }
    return max
};