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Invalid_Transactions.py
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Invalid_Transactions.py
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# Runtime = 67ms (86.26%)
# Memory = 14.3MB (35.11%)
class Solution(object):
def invalidTransactions(self, transactions):
r = {}
inv = []
for i in transactions:
split = i.decode("utf-8").split(",")
name = str(split[0])
time = int(split[1])
amount = int(split[2])
city = str(split[3])
if time not in r:
r[time] = {
name: set([city]) # use set instead of list
}
else:
if name not in r[time]:
r[time][name]=set([city]) # use set instead of list
else:
r[time][name].add(city)
for i in transactions:
split = i.decode("utf-8").split(",")
name = str(split[0])
time = int(split[1])
amount = int(split[2])
city = str(split[3])
if amount > 1000:
inv.append(i)
continue
for j in range(time-60, time+61):
if j not in r:
continue
if name not in r[j]:
continue
if len(r[j][name]) > 1 or (next(iter(r[j][name])) != city): # get an element from set
inv.append(i)
break
return inv