Submission #21,157

2026-01-12 14:06:06

python3

Accepted 50/50

337ms

42364 KiB

n = int(input())
years = [int(i) for i in input().split()]
dict = {k: 0 for k in set(years)}
missing = len(set(years))
for i in range(n-1, 0, -1):
	if dict[years[i]] == 0:
		missing -= 1
	dict[years[i]] += 1
	if missing == 0:
		i += 1
		break
		
print(i)

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	16ms	3308 KiB
		2	Accepted	0/0	32ms	6184 KiB
		3	Accepted	5/5	17ms	3312 KiB
		4	Accepted	5/5	17ms	3116 KiB
		5	Accepted	5/5	90ms	24012 KiB
		6	Accepted	5/5	89ms	23956 KiB
		7	Accepted	4/4	284ms	28000 KiB
		8	Accepted	4/4	277ms	28020 KiB
		9	Accepted	4/4	229ms	27872 KiB
		10	Accepted	4/4	215ms	27868 KiB
		11	Accepted	4/4	217ms	25064 KiB
		12	Accepted	2/2	268ms	24996 KiB
		13	Accepted	2/2	300ms	42364 KiB
		14	Accepted	1/1	305ms	42264 KiB
		15	Accepted	1/1	337ms	34312 KiB
		16	Accepted	1/1	282ms	27908 KiB
		17	Accepted	1/1	210ms	27956 KiB
		18	Accepted	1/1	130ms	24880 KiB
		19	Accepted	1/1	111ms	24996 KiB