Submission #603208

#	Time	Username	Problem	Language	Result	Execution time	Memory
603208		beaconmc	철인 이종 경기 (APIO18_duathlon)	Cpython 3	0 / 100	17 ms	2832 KiB

count_triplets

from math import comb
n,m = map(int, input().split())

print((n-2)*comb(n,2)*2)

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