LeetCode 2412: Minimum Money Required Before Transactions
LeetCode 2412 Solution Explanation
Explanation:
To find the minimum amount of money required before any transaction so that all transactions can be completed regardless of the order, we can use a greedy approach. We need to consider the transactions with the highest cost first, as these will require the most money to complete.
- Sort the transactions array in descending order based on the difference between cost and cashback.
- Initialize a variable
moneyto keep track of the total money required. - Iterate through the sorted transactions array and update the
moneyvariable accordingly.
LeetCode 2412 Solutions in Java, C++, Python
import java.util.Arrays;
class Solution {
public int minMoneyRequired(int[][] transactions) {
Arrays.sort(transactions, (a, b) -> (b[0] - b[1]) - (a[0] - a[1]));
int money = 0;
for (int[] transaction : transactions) {
money = Math.max(money, transaction[0]) + transaction[1];
}
return money;
}
}Interactive Code Editor for LeetCode 2412
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