传送门 题意 分析 模拟一颗二叉树，找到待修改的节点然后向上维护即可 代码 #pragma GCC optimize(3)#include <bits/stdc++.h>#define debug(x) cout<<#x<<":"<<x<<endl;#define dl(x) printf("%lld\n",x);#define di(x) printf("%d\n",x);

Playoff - 洛谷 | 计算机科学教育新生态 (luogu.com.cn) Problem - D - Codeforces 读入n，代表有2^n个队伍参加比赛，每次相邻的两个队比赛，字符串中0->分低的胜利，1->分高的胜利路 对于a<b<c<d;字符串是01或者10，可以发现都只有b,c可以赢得比赛，字符串中01的顺序对答案没有影响 1的个数x->使得前[1,2^x)

A Playoff 原题地址 Consider a playoff tournament where 2 n 2^n 2n athletes compete. The athletes are numbered from 1 1 1 to 2 n 2^n 2n. The tournament is held in n n n stages. In each stage, the ath

目录 题目描述： 题目分析: Ac代码： 原题链接 题目描述： Consider a playoff tournament where 2^n athletes compete. The athletes are numbered from 1 to 2^n. The tournament is held in n stages. In each stage, the athl

Problem - D - Codeforces D. Playoff Tournament time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output 2k2k teams participate in a playo