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Problem 1004
题意
a19891101
| 2015-08-15 19:42:05
Author
第二组样例,因为2=2+0=1+1=0+2,所以答案为cos(2*0)cos(0*0)+cos(1*0)cos(1*0)+cos(0*0)cos(2*0)=3。不是这样吗?答案为啥是1??
admin
| 2015-08-15 19:46:17
# 1
请注意非负整数
admin
| 2015-08-15 19:48:04
# 2
要求>1
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