Problem#
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.
Examples#
Example 1:
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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.
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Example 2:
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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.
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Example 3:
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Input: accounts =[[2,8,7],[7,1,3],[1,9,5]]
Output: 17
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Solution#
Method 1 - Simply Add All Row Values and Get Max#
Code:
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public int maximumWealth(int[][] accounts) {
return Arrays.stream(accounts).mapToInt(i -> Arrays.stream(i).sum()).max().getAsInt();
}
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