122. Best Time to Buy and Sell Stock II

LInk:https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/

贪心算法

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