Difference between revisions of "Training 5: Dynamic Programming"
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题意:给定一个 $n$ $(1 \le n \le 16)$ 个点,有重边的无向图,求联通子图的个数。 | 题意:给定一个 $n$ $(1 \le n \le 16)$ 个点,有重边的无向图,求联通子图的个数。 | ||
− | 题解:令 $S$ 是 $\{1,\dots,n}$ 的子集,$ans(S)$ 代表对 $S \subseteq {1,\dots,n}$ 按从小到大的顺序 | + | 题解:令 $S$ 是 $\{1,\dots,n\}$ 的子集,$ans(S)$ 代表对 $S \subseteq {1,\dots,n}$ 按从小到大的顺序 |
== Problem E == | == Problem E == |
Revision as of 03:27, 12 September 2019
Problem A
Unsolved.
Problem B
Unsolved.
Problem C
Unsolved.
Problem D
Solved by Kilo_5723.
题意:给定一个 $n$ $(1 \le n \le 16)$ 个点,有重边的无向图,求联通子图的个数。
题解:令 $S$ 是 $\{1,\dots,n\}$ 的子集,$ans(S)$ 代表对 $S \subseteq {1,\dots,n}$ 按从小到大的顺序
Problem E
Unsolved.
Problem F
Unsolved.