Submission #16,693

2025-05-08 19:10:00

pypy3

Accepted 100/100

134ms

44660 KiB

# UUID: 31a45364-7b03-4206-87a6-fbf1cceb7f61
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])

	Sum	Test	Verdict	Time	Memory
subtask1	0/0
		1	Accepted	39ms	19432 KiB
		2	Accepted	43ms	19440 KiB
		3	Accepted	39ms	19408 KiB
subtask2	10/10
		4	Accepted	39ms	19452 KiB
		5	Accepted	39ms	19532 KiB
		6	Accepted	45ms	19520 KiB
		7	Accepted	43ms	19352 KiB
		8	Accepted	45ms	19504 KiB
subtask3	10/10
		9	Accepted	39ms	19608 KiB
		10	Accepted	45ms	19716 KiB
		11	Accepted	43ms	19488 KiB
		12	Accepted	39ms	19356 KiB
		13	Accepted	64ms	31452 KiB
		14	Accepted	72ms	31208 KiB
subtask4	15/15
		15	Accepted	45ms	19524 KiB
		16	Accepted	43ms	19508 KiB
		17	Accepted	39ms	19432 KiB
		18	Accepted	41ms	19428 KiB
		19	Accepted	46ms	19608 KiB
		20	Accepted	45ms	19500 KiB
		21	Accepted	39ms	19424 KiB
		22	Accepted	39ms	19556 KiB
		23	Accepted	46ms	19436 KiB
		24	Accepted	39ms	19436 KiB
subtask5	20/20
		25	Accepted	48ms	21624 KiB
		26	Accepted	57ms	21824 KiB
		27	Accepted	52ms	21700 KiB
		28	Accepted	57ms	21716 KiB
		29	Accepted	61ms	21828 KiB
		30	Accepted	61ms	21756 KiB
		31	Accepted	52ms	21764 KiB
		32	Accepted	57ms	21484 KiB
subtask6	15/15
		33	Accepted	43ms	19484 KiB
		34	Accepted	104ms	39080 KiB
		35	Accepted	90ms	43284 KiB
		36	Accepted	104ms	43268 KiB
		37	Accepted	90ms	43320 KiB
		38	Accepted	101ms	43284 KiB
		39	Accepted	92ms	43324 KiB
		40	Accepted	56ms	21500 KiB
		41	Accepted	79ms	31980 KiB
subtask7	30/30
		42	Accepted	83ms	31924 KiB
		43	Accepted	134ms	44504 KiB
		44	Accepted	115ms	43784 KiB
		45	Accepted	114ms	43964 KiB
		46	Accepted	131ms	43800 KiB
		47	Accepted	126ms	43800 KiB
		48	Accepted	115ms	44472 KiB
		49	Accepted	115ms	44660 KiB
		50	Accepted	101ms	31980 KiB
		51	Accepted	93ms	31920 KiB