1672. Richest Customer Wealth

1672. Richest Customer Wealth #

题目 #

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

题目大意 #

给你一个 m x n 的整数网格 accounts ,其中 accounts[i][j] 是第 i 位客户在第 j 家银行托管的资产数量。返回最富有客户所拥有的 资产总量 。客户的 资产总量 就是他们在各家银行托管的资产数量之和。最富有客户就是 资产总量 最大的客户。

解题思路 #

  • 简单题。计算二维数组中每个一位数组的元素总和,然后动态维护这些一位数组和的最大值即可。

代码 #

package leetcode

func maximumWealth(accounts [][]int) int {
	res := 0
	for _, banks := range accounts {
		sAmount := 0
		for _, amount := range banks {
			sAmount += amount
		}
		if sAmount > res {
			res = sAmount
		}
	}
	return res
}

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