分析題目

ex:

Input: accounts = [[1,2,3],[3,2,1]]
Output: 6 
Explanation: 
1st customer has wealth = 1 + 2 + 3 = 6 2nd customer has wealth = 3 + 2 + 1 = 6 Both customers are considered the richest with a wealth of 6 each, so return 6.

第一直覺

1. 首先遍歷 “accounts”
2. 將 “accounts [ i ]” 內的 array 做加總。

var maximumWealth = function (accounts) {
  for (let i = 0; i < accounts.length; i++) {
    accounts[i] = accounts[i].reduce((a, b) => a + b, 0);
  }

  return Math.max(...accounts);
};