Codeforces Round #428 (Div. 2):D. Winter is here(组合数公式)
转载出处:http://blog.youkuaiyun.com/jaihk662/article/details/77161436
D. Winter is here
time limit per test
3 seconds
memory limit per test
256 megabytes
input
standard input
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2017-08-16 17:12:23 ·
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