How to Solve Invalid Transactions Problem
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Invalid Transactions
A transaction is possibly invalid if: the amount exceeds $1000, or; if it occurs within (and including) 60 minutes of another transaction with the same name in a different city. You are given an array...
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Understanding the Invalid Transactions Problem
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Problem Statement
A transaction is possibly invalid if: the amount exceeds $1000, or; if it occurs within (and including) 60 minutes of another transaction with the same name in a different city. You are given an array of strings transaction where transactions[i] consists of comma-separated values representing the name, time (in minutes), amount, and city of the transaction. Return a list of transactions that are possibly invalid. You may return the answer in any order.
Invalid Transactions
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Examples
transactions = ["alice,20,800,mtv","alice,50,100,beijing"]["alice,20,800,mtv","alice,50,100,beijing"]The first transaction is invalid because the second transaction occurs within a difference of 60 minutes, have the same name and is in a different city. Similarly the second one is invalid too.
transactions = ["alice,20,800,mtv","alice,50,1200,mtv"]["alice,50,1200,mtv"]transactions = ["alice,20,800,mtv","bob,50,1200,mtv"]["bob,50,1200,mtv"]Constraints
transactions.length <= 1000Each transactions[i] takes the form "{name},{time},{amount},{city}"Each {name} and {city} consist of lowercase English letters, and have lengths between 1 and 10.Each {time} consist of digits, and represent an integer between 0 and 1000.Each {amount} consist of digits, and represent an integer between 0 and 2000.How Interview Coder Helps with Leetcode Problems
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