1672.RichestCustomerWealth.py

"""
    You are given an m x n integer grid accounts where accounts[i][j] is the 
    amount of money the i​​​​​​​​​​​th​​​​ customer has in the j​​​​​​​​​​​th​​​​ 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:
    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:
    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:
    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
"""
#Difficuly: Easy
#34 / 34 test cases passed.
#Runtime: 48 ms
#Memory Usage: 14.4 MB

#Runtime: 48 ms, faster than 100.00% of Python3 online submissions for Richest Customer Wealth.
#Memory Usage: 14.4 MB, less than 66.67% of Python3 online submissions for Richest Customer Wealth.

class Solution:
    def maximumWealth(self, accounts: List[List[int]]) -> int:
        return max(sum(account) for account in accounts)