29 122. Best Time to Buy and Sell Stock II

122. Best Time to Buy and Sell Stock II

解题思路

1. 由于可以在同一天交易，那么每次有差值即可做交易
2. 遍历数组，如果后一天大于前一天即累加最大获利值 max

代码

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