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关于list容器的使用。

C. Misha and Foresttime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputLet's define a forest as a non-directed

E. Zebra Towertime limit per test1.5 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputLittle Janet likes playing with cubes. Act

Nearest Common AncestorsTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 18886 Accepted: 9991DescriptionA rooted tree is a well-known data structure in c

MachineTime Limit: 2 Seconds      Memory Limit: 65536 KBIn a typical assembly line, machines are connected one by one. The first machine's output product will be the second machine's raw mater

1329: 一行盒子Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 381  Solved: 72[Submit][Status][Web Board]Description你有一行盒子，从左到右依次编号为1, 2, 3,…, n。你可以执行四种指令：1 X Y表示把盒子X移动到盒子Y左边（如果X已经在Y的左边则忽略

K Smallest SumsYou're given k arrays, each array has k integers. There are kk ways to pick exactly one element in each array and calculate the sum of the integers. Your task is to find the k small

Tree Summing

Spreadsheet In 1979, Dan Bricklin and Bob Frankston wrote VisiCalc, the first spreadsheetapplication. It became a huge success and, at that time, was the killerapplication for the Apple II

ExpressionsArithmetic expressions are usually written with the operators inbetween thetwo operands (which is called infix notation). For example,(x+y)*(z-w)is an arithmetic expression in infix n

Generalized Matrioshkas Vladimir worked for years making matrioshkas, those nesting dolls that certainly represent truly Russian craft. A matrioshka is a doll that may be opened in two hal

Matrix Chain Multiplication Suppose you have to evaluate an expression like A*B*C*D*E where A,B,C,D and E are matrices.Since matrix multiplication is associative, the order in which multip

Parentheses Balance You are given a string consisting of parentheses () and []. Astring of this type is said to becorrect:(a)if it is the empty string(b)if A and B are correct, AB is c

C. Guess Your Way Out!time limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAmr bought a new video game "Guess Yo