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Discussion of Problem
1402
. Cocktails
accepted
Posted by
Mikhail
16 May 2018 01:33
ans = 0
n = int(input())
for i in range(2, n + 1) :
cur = 1
for j in range(n - i + 1, n + 1) :
cur = cur * j
ans = ans + cur
print(ans)
///////////
на С++ переполняется, нужно длинку писать
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