D. 0-1 MST Ujan has a lot of useless stuff in his drawers, a considerable part of which are his math notebooks: it is time to sort them out. ...
Description 题库链接 给你一张 n 个点的完全图,其中有 m 条边长度为 ,其余全为 。问你这张图的最小生成树为多少。 leq n leq , leq m leq min left frac n n , right Solution 容易发现,答案就是补图连通块个数 。喜闻乐见的抄板子了... 解析详见 Codeforces E Connected Components Code in ...
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D. 0-1 MST Ujan has a lot of useless stuff in his drawers, a considerable part of which are his math notebooks: it is time to sort them out. ...
Codeforces Round #599 (Div. 2) D. 0-1 MST Description Ujan has a lot of useless stuff in his drawers, a considerable part of which are his math ...
Description 题库链接 给你 \(k\) 个盒子,第 \(i\) 个盒子中有 \(n_i\) 个数,第 \(j\) 个数为 \(x_{i,j}\)。现在让你进行 \(k\) 次操作,第 ...
题目链接 \(Description\) 有一张\(n\)个点的完全图,每个点的权值为\(a_i\),两个点之间的边权为\(a_i\ xor\ a_j\)。求该图的最小生成树。 \(n\leq2* ...
Discription Ehab is interested in the bitwise-xor operation and the special graphs. Mahmoud gave hi ...
题目大意: 一个数列是尖锐的 当且仅当存在一个位置k使得 a[1]<a[2]<a[3]<...<a[k] 且 a[k]>a[k+1]>a[k+2]>... ...
链接:http://codeforces.com/contest/1068 A - Birthday - [计算题] 题意:一共 $N$ 种硬币,我已经有其中 $K$ 种,我的 $M$ 个朋友每人送我等数量的硬币,且送来的每一枚硬币都不属于同一种,要求最后我收到手上的硬币至少有 $L$ 种 ...
题意是说给你一串数组,其中-1代表未知,求相邻两个数之差的绝对值最小,-1可以由k赋值,先考虑-1的情况,把k解出来,转换一下,就是绝对值之差最小情况,|k-a|,|k-b|,|k-c|,要使最大的最小,也就是在两个端点找,|k-min|,|k-max|,由数形结合可知,当k为min与max的中点 ...