PE 174
生成法
h = {i:0 for i in range(8,1000004,4)}
for i in xrange(1,250000):
t = 0
while True:
t += 4*i+4
i += 2
if t>1000000:
break
h[t]+=1
print len([i for i in h.values() if 0<i<11])
h = {i:0 for i in range(8,1000004,4)}
for i in xrange(1,250000):
t = 0
while True:
t += 4*i+4
i += 2
if t>1000000:
break
h[t]+=1
print len([i for i in h.values() if 0<i<11])
