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.
Each transaction string transactions[i] consists of comma separated values representing the name, time (in minutes), amount, and city of the transaction.
Given a list of transactions, return a list of transactions that are possibly invalid.  You may return the answer in any order.
Example 1:
Input: transactions = ["alice,20,800,mtv","alice,50,100,beijing"]
Output: ["alice,20,800,mtv","alice,50,100,beijing"]
Explanation: 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.
Example 2:
Input: transactions = ["alice,20,800,mtv","alice,50,1200,mtv"]
Output: ["alice,50,1200,mtv"]
Example 3:
Input: transactions = ["alice,20,800,mtv","bob,50,1200,mtv"]
Output: ["bob,50,1200,mtv"]
Constraints:
transactions.length <= 1000
Each 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.
class Solution:
    def invalidTransactions(self, transactions: List[str]) -> List[str]:
        
        temp=[]       
        for t in transactions:
            temp.append(t.split(','))
            
        res=set()
        for i in range(len(temp)):
            if int(temp[i][2])>1000:
                res.add(','.join(temp[i]))
            for j in range(i+1, len(temp)):
                if temp[i][0]==temp[j][0] and temp[i][3]!=temp[j][3] and abs(int(temp[i][1])-int(temp[j][1]))<=60:
                            res.add(','.join(temp[i]))
                            res.add(','.join(temp[j]))
                
        return res
            

class Solution:
    def invalidTransactions(self, transactions: List[str]) -> List[str]:
        
        temp=[]       
        for t in transactions:
            temp.append(t.split(','))
            
        res=set()
        for i in range(len(temp)):
            if int(temp[i][2])>1000:
                res.add(','.join(temp[i]))
            for j in range(i+1, len(temp)):
                if temp[i][0]==temp[j][0] and temp[i][3]!=temp[j][3] and abs(int(temp[i][1])-int(temp[j][1]))<=60:
                            res.add(','.join(temp[i]))
                            res.add(','.join(temp[j]))
                
        return res
            
