小、pi孩

分类

Codeforce(14) python学习(29) 动态规划(1) 快速幂逆元(2) 数据结构(19) 最短路(1) 算法(26) 蓝桥杯(1) 计算机网络(2) 题解(2)

/ 注册

全部文章（共97篇）

第二章（物理层）

第二章（物理层）接受数据链路层发过来的01字符串，主要任务描述为确定与传输媒体的接口的一些特性机械特性、电气特性、功能特性、规程特性 DTE：数据终端设备 DCE：数据电路端接设备路由器是（双宿主堡垒主机）防火墙是一种特殊的路由器，加了安全功能的路由器 IDS/IPS：入侵检测...

2020-10-07

0 641

Codeforces Round #628 (Div. 2)------EhAb AnD gCd

题目： You are given a positive integer x. Find any such 2 positive integers a and b such that GCD(a,b)+LCM(a,b)=x. As a reminder, GCD(a,b) is the greate...

2020-10-07

0 607

Codeforces Round #628 (Div. 2)------CopyCopyCopyCopyCopy

题目： Ehab has an array a of length n. He has just enough free time to make a new array consisting of n copies of the old array, written back-to-back. W...

2020-10-07

0 450

Codeforces Round #628 (Div. 2)------Ehab and Path-etic MEXs

题目： You are given a tree consisting of n nodes. You want to write some labels on the tree’s edges such that the following conditions hold: Every label...

2020-10-07

0 394

Codeforces Round #628 (Div. 2)------Ehab the Xorcist

题目： Given 2 integers u and v, find the shortest array such that bitwise-xor of its elements is u, and the sum of its elements is v. Input The only li...

2020-10-07

0 390

Codeforces Round #633 (Div. 2) ------ Sorted Adjacent Differences

题目： You have array of n numbers a1,a2,…,an. Rearrange these numbers to satisfy |a1−a2|≤|a2−a3|≤…≤|an−1−an|, where |x| denotes absolute value of x. It...

2020-10-07

0 506

蛮力法的应用------凸包问题（easy-x图形化）

演示截图： //蛮力法求凸包问题 #include<iostream> #include<vector> #include<algorithm> #include<conio.h> #include<map> #include<...

2020-10-07

0 767

分治法的应用------凸包问题（easy-x图形化）

//分治法求凸包问题 #include<iostream> #include<vector> #include<algorithm> #include<graphics.h> #include<conio.h> #include<ma...

2020-10-07

0 526

动态规划问题------ 0-1背包(easy-x图形化)

运行截图： //动态规划求0-1背包问题 #include<iostream> #include<vector> #include<graphics.h> #include<conio.h> using namespace std; stru...

2020-10-07

0 435

贪心算法的应用---背包问题(easy-x图形化)

运行截图： //贪心法求背包问题 #include<iostream> #include<algorithm> #include<graphics.h> #include<conio.h> using namespace std; const i...

2020-10-07

0 543