https://leetcode.com/problems/unique-paths/
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https://leetcode.com/problems/unique-paths/
不知道说什么
小学排列组合的奥术题
一瞬间不知道怎么计算机解了
不知道脑子里的排列组合应该算思考还是算作弊
import mathclass Solution: # @param m, an integer # @param n, an integer # @return an integer def uniquePaths(self, m, n): a=math.factorial(m+n-2) b=math.factorial(m-1) c=math.factorial(n-1) return a/(b*c)
0 0
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