AJ's Code blog
spoj solutions and other codes in python, C , C++
Wednesday, 30 January 2013
7406. Beehive Numbers Problem code: BEENUMS
while 1:
n=input()
if n==-1:
break
k=float((-3+pow(-3+12*n,1.0/2))/6)
d=int(k)
if d-k==0:
print "Y"
else:
print "N"
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