从这里开始 小结 题目列表 Problem A Diagonal Walking Problem B String Typing Problem C Matrix Walk Problem D Fight Against Traffic Problem E Water Taps Problem F Runner's Problem Problem G Castle Defense Problem H Path Counting Problem I Yet Another String Match…
题 OvO http://codeforces.com/contest/954/problem/G 解 二分答案, 对于每个二分的答案值 ANS,判断这个答案是否可行. 记 s 数组为题目中描述的 a 数组 以下为初始化: 首先建一个 个元素到第 i 个元素的和 然后建一个 p 数组,其中 p[i] 代表能射到第 i 个区域的弓箭手数量, p[i] 显然可以由 pre 计算得到 以下是对于二分的每个答案值 ANS,判断这个值是否可行的做法: 创建一个 d 数组, d[i] = p[i] - p[…
A. Diagonal Walking time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Mikhail walks on a 2D plane. He can go either up or right. You are given a sequence of Mikhail's moves. He thinks that th…
Problem Educational Codeforces Round 60 (Rated for Div. 2) - C. Magic Ship Time Limit: 2000 mSec Problem Description Input Output The only line should contain the minimal number of days required for the ship to reach the point (x2,y2)(x2,y2). If it…
Problem Educational Codeforces Round 60 (Rated for Div. 2) - D. Magic Gems Time Limit: 3000 mSec Problem Description Input The input contains a single line consisting of 2 integers N and M (1≤N≤10^18, 2≤M≤100). Output Print one integer, the total n…
Codeforces Educational Codeforces Round 44 (Rated for Div. 2) F. Isomorphic Strings 题目连接: http://codeforces.com/contest/985/problem/F Description You are given a string s of length n consisting of lowercase English letters. For two given strings s an…
Codeforces Educational Codeforces Round 44 (Rated for Div. 2) E. Pencils and Boxes 题目连接: http://codeforces.com/contest/985/problem/E Description Mishka received a gift of multicolored pencils for his birthday! Unfortunately he lives in a monochrome w…
Educational Codeforces Round 63 (Rated for Div. 2)题解 题目链接 A. Reverse a Substring 给出一个字符串,现在可以对这个字符串进行一次翻转,问是否存在一种方案,可以使得翻转后字符串的字典序可以变小. 这个很简单,贪心下就行了. 代码如下: Code #include <bits/stdc++.h> using namespace std; typedef long long ll; const int N = 3e5…
