165652025-05-06 18:20:54algoproLegnagyobb téglalappypy3Accepted 100/100135ms44556 KiB
# UUID: d1845d88-c989-4232-bfca-7bcc73a4b192
d= dict()
n =int(input())
w =[]
k =[int(x) for x in input().split()]
for i in range(n):
    if k[i] in d:
        d[k[i]]+=1
    else:
        d[k[i]] = 1
A= sorted(d.keys(), reverse = True)

for i in range(len(A)):
    if d[A[i]]>=2:
        w.append(A[i])
    if d[A[i]]>=4:
        w.append(A[i])
if len(w)<2:
    print(0)
else:
    ww=sorted(w)
    print(ww[-1]*ww[-2])
SubtaskSumTestVerdictTimeMemory
subtask10/0
1Accepted39ms19536 KiB
2Accepted39ms19444 KiB
3Accepted43ms19436 KiB
subtask210/10
4Accepted39ms19368 KiB
5Accepted45ms19348 KiB
6Accepted43ms19364 KiB
7Accepted39ms19408 KiB
8Accepted45ms19436 KiB
subtask310/10
9Accepted43ms19416 KiB
10Accepted43ms19356 KiB
11Accepted39ms19436 KiB
12Accepted39ms19416 KiB
13Accepted72ms31204 KiB
14Accepted65ms31424 KiB
subtask415/15
15Accepted45ms19616 KiB
16Accepted45ms19604 KiB
17Accepted39ms19604 KiB
18Accepted41ms19492 KiB
19Accepted46ms19600 KiB
20Accepted46ms19504 KiB
21Accepted39ms19540 KiB
22Accepted46ms19440 KiB
23Accepted39ms19572 KiB
24Accepted39ms19548 KiB
subtask520/20
25Accepted54ms21564 KiB
26Accepted52ms21800 KiB
27Accepted52ms21712 KiB
28Accepted59ms21632 KiB
29Accepted52ms21736 KiB
30Accepted52ms21568 KiB
31Accepted59ms21812 KiB
32Accepted59ms21572 KiB
subtask615/15
33Accepted45ms19396 KiB
34Accepted104ms39152 KiB
35Accepted92ms43336 KiB
36Accepted92ms43392 KiB
37Accepted90ms43284 KiB
38Accepted104ms43284 KiB
39Accepted92ms43384 KiB
40Accepted57ms21480 KiB
41Accepted81ms31980 KiB
subtask730/30
42Accepted86ms31848 KiB
43Accepted135ms44556 KiB
44Accepted115ms43824 KiB
45Accepted115ms43736 KiB
46Accepted133ms43800 KiB
47Accepted114ms43916 KiB
48Accepted115ms44528 KiB
49Accepted133ms44556 KiB
50Accepted90ms31980 KiB
51Accepted96ms31908 KiB