RichestCustomerWealth1672.kt

package easy

/*
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 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
 */
fun maximumWealth(accounts: Array<IntArray>): Int {
    var max = 0
    accounts.forEach {banks->
        val wealth= banks.reduce{sum,bank-> sum+bank}
        if(wealth > max)
            max = wealth
    }

    return max
}