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