richest-customer.py

"""
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.
"""
class Solution:
    def maximumWealth(self, accounts: List[List[int]]) -> int:
        cusnos = len(accounts)
        banknos = len(accounts[0])
        rich = [0] * cusnos
        
        for i in range(cusnos):
            rich[i] = sum(accounts[i])
            
        return max(rich)