随笔分类 - online judge Codeforces
摘要：Codeforces Round 271 (Div. 2) A Keyboard 题意 给你一个字符串，问你这个字符串在键盘的位置往左边挪一位，或者往右边挪一位字符，这个字符串是什么样子 题解 模拟一下就好了 代码 include using namespace std; string s[3];
阅读全文
摘要：Codeforces Beta Round 83 (Div. 1 Only) A. Dorm Water Supply 题意 给你一个n点m边的图，保证每个点的入度和出度最多为1 如果这个点入度为0，那么这个点就是水龙头点。 如果这个点的出度为0，那么这个点就是储存点。 现在让你把所有水龙头到储存点
阅读全文
摘要：Codeforces Round 177 (Div. 1) A. Polo the Penguin and Strings 题意 让你构造一个长度为n的串，且里面恰好包含k个不同字符，让你构造的字符串字典序最小。 题解 先abababab，然后再把k个不同字符输出，那么这样就是最少 代码 inclu
阅读全文
摘要：B. Alyona and a tree 题目连接： http://codeforces.com/contest/739/problem/B Description Alyona has a tree with n vertices. The root of the tree is the vert
阅读全文
摘要：C. Binary Table 题目连接： http://codeforces.com/problemset/problem/662/C Description You are given a table consisting of n rows and m columns. Each cell o
阅读全文
摘要：A. Alyona and mex 题目连接： http://codeforces.com/contest/739/problem/A Description Alyona's mother wants to present an array of n non negative integers t
阅读全文
摘要：E. Anton and Tree 题目连接： http://codeforces.com/contest/734/problem/E Description Anton is growing a tree in his garden. In case you forgot, the tree is
阅读全文
摘要：D. Anton and Chess 题目连接： http://codeforces.com/contest/734/problem/D Description Anton likes to play chess. Also, he likes to do programming. That is
阅读全文
摘要：C. Anton and Making Potions 题目连接： http://codeforces.com/contest/734/problem/C Description Anton is playing a very interesting computer game, but now h
阅读全文
摘要：B. Anton and Digits 题目连接： http://codeforces.com/contest/734/problem/B Description Recently Anton found a box with digits in his room. There are k2 dig
阅读全文
摘要：A. Anton and Danik 题目连接： http://codeforces.com/contest/734/problem/A Description Anton likes to play chess, and so does his friend Danik. Once they ha
阅读全文
摘要：C. Drazil and Park 题目连接： http://codeforces.com/contest/516/problem/C Description Drazil is a monkey. He lives in a circular park. There are n trees ar
阅读全文
摘要：B. Drazil and Tiles 题目连接： http://codeforces.com/contest/516/problem/B Description Drazil created a following problem about putting 1 × 2 tiles into an
阅读全文
摘要：A. Drazil and Factorial 题目连接： http://codeforces.com/contest/516/problem/A Description Drazil is playing a math game with Varda. Let's define for posit
阅读全文
摘要：E. Goods transportation 题目连接： http://codeforces.com/contest/724/problem/E Description There are n cities located along the one way road. Cities are nu
阅读全文
摘要：D. Dense Subsequence 题目连接： http://codeforces.com/contest/724/problem/D Description You are given a string s, consisting of lowercase English letters,
阅读全文
摘要：C. Ray Tracing 题目连接： http://codeforces.com/contest/724/problem/C Description oThere are k sensors located in the rectangular room of size n × m meters
阅读全文
摘要：B. Batch Sort 题目连接： http://codeforces.com/contest/724/problem/B Description output standard output You are given a table consisting of n rows and m co
阅读全文
摘要：A. Checking the Calendar 题目连接： http://codeforces.com/contest/724/problem/A Description You are given names of two days of the week. Please, determine
阅读全文
摘要：F. st Spanning Tree 题目连接： http://codeforces.com/contest/723/problem/F Description You are given an undirected connected graph consisting of n vertices
阅读全文