Codecraft-17 and Codeforces Round #391 (Div. 1 + Div. 2, combined) C. Felicity is Coming!组合学+集合
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C. Felicity is Coming! 组合学+集合 My Solution 题意:给出n组数,每组gi个数,每个数属于1~m,每…
C. Hongcow Builds A Nation 并查集+贪心+组合学、图论、dfs My Solution 题意:有n个点(其中有k个…
B. Chocolate 组合学、简单题 Source Codeforces Round #340 (Div. 2) My Solution 0 1 0 1 …
D. Directed Roads 图论、组合学、二重dfs、并查集形式的图、Interesting、好题 Source Codeforces …
Permutation Counting 组合学、递推 Source UESTC 2016 Summer Training #11 Div.2 UVALive 5971 &nbs…