第九十四天:力扣 123题,买卖股票的最佳时机 III
地址:leetcode-cn.com/problems/be…
思路:动态规划,和之前的买卖股票题目差不多
var maxProfit = function(prices) {
const n = prices.length;
let buy1 = -prices[0], buy2 = -prices[0];
let sell1 = 0, sell2 = 0;
for (let i = 1; i < n; i++) {
buy1 = Math.max(buy1, -prices[i]);
sell1 = Math.max(sell1, buy1 + prices[i]);
buy2 = Math.max(buy2, sell1 - prices[i]);
sell2 = Math.max(sell2, buy2 + prices[i]);
}
return sell2;
};
执行用时:120 ms, 在所有 JavaScript 提交中击败了69.35%的用户
内存消耗:48 MB, 在所有 JavaScript 提交中击败了95.09%的用户