public class Solution
extends Object
1672 - Richest Customer Wealth\.
Easy
You are given an `m x n` integer grid `accounts` where `accounts[i][j]` is the amount of money the ith customer has in the jth bank. Return _the **wealth** that the richest customer has._
A customer's **wealth** is the amount of money they have in all their bank accounts. The richest customer is the customer that has the maximum **wealth**.
**Example 1:**
**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.
**Example 2:**
**Input:** accounts = \[\[1,5],[7,3],[3,5]]
**Output:** 10
**Explanation:**
1st customer has wealth = 6
2nd customer has wealth = 10
3rd customer has wealth = 8
The 2nd customer is the richest with a wealth of 10.
**Example 3:**
**Input:** accounts = \[\[2,8,7],[7,1,3],[1,9,5]]
**Output:** 17
**Constraints:**
* `m == accounts.length`
* `n == accounts[i].length`
* `1 <= m, n <= 50`
* `1 <= accounts[i][j] <= 100`