A.Rikka with Nash Equilibrium
Solved by ghk.2:34(+)
- dp[i][j][k] 放第i个数,放了j行k列,然后从大到小放。
- dp[i][j][k] * k * (n - j) -> dp[i+1][j+1][k]
- dp[i][j][k] * j * (m - j) -> dp[i+1][j][k+1]
- dp[i][j][k] * (j * k - i) -> dp[i+1][j][k]
D.Rikka with Stone-Paper-Scissors
Solved by ghk.1:02(+1)
- 猜公式。
K.Rikka with Badminton
Solved by ghk.0:46(+)
- 只要有至少2个球拍跟1个球就行,求不符合这个条件的情况,枚举一下。
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