老白号的专栏

大一上学期学了c++,下学期要实习，而实习题目就是acm（toj）上的9道题,附加一个纸牌游戏的类网址：http://acm.tju.edu.cn  Program 1： Web Navigation （TOJ_1196） Standard web browsers contain features to move backward and forward among the

BackgroundFor years, computer scientists have been trying to find efficient solutions to different computing problems. For some of them efficient algorithms are already available, these are the "e

Mileage program of ACM (Airline of Charming Merlion) is really nice for the travelers flying frequently. Once you complete a flight with ACM, you can earn ACMPerk miles in your ACM Mileage Bank depe

Given two integers n and m, count the number of pairs of integers (a,b) such that 0 a b n and (a2+b2+m)/(ab) is an integer. InputYou will be given a number of cases in the input. Each case

In 1742, Christian Goldbach, a German amateur mathematician, sent a letter to Leonhard Euler in which he made the following conjecture: Every even number greater than 4 can be written as the sum of

When Issac Bernand Miller takes a trip to another country, say to France, he exchanges his US dollars for French francs. The exchange rate is a real number such that when multiplied by the number of

Starting from point (0,0) on a plane, we have written all non-negative integers 0, 1, 2,... as shown in the figure. For example, 1, 2, and 3 has been written at points (1,1), (2,0), and (3, 1)

Let S = s1 s2 ... s2n be a well-formed string of parentheses. S can be encoded in two different ways: By an integer sequence P = p1 p2 ... pn where pi is the number of left parentheses

One measure of "unsortedness" in a sequence is the number of pairs of entries that are out of order with respect to each other. For instance, in the letter sequence "DAABEC", this measure is 5, sinc

John von Neumann, b. Dec. 28, 1903, d. Feb. 8, 1957, was a Hungarian-American mathematician who made important contributions to the foundations of mathematics, logic, quantum physics, meteorol

A boolean matrix has the parity property when each row and each column has an even sum, i.e. contains an even number of bits which are set. Heres a 4 x 4 matrix which has the parity property: 1 0 1

Suppose we have n ropes of equal length and we want to use them to lift some heavy object. A tear-off weight t is associated to each rope, that is, if we try to lift an object, heavier than t with t

When chomping a tree the beaver cuts a very specific shape out of the tree trunk. What is left in the tree trunk looks like two frustums of a cone joined by a cylinder with the diameter the same as i

In this problem, you are to solve a very easy linear equation with only one variable x with no parentheses! An example of such equations is like the following:2x - 4 + 5x + 300 = 98xAn express

A Niven number is a number such that the sum of its digits divides itself. For example, 111 is a Niven number because the sum of its digits is 3, which divides 111. We can also specify a numbe

#include    #include    #include    using namespace std;   int main(){       string s;        vector a;       while (1){        getline(cin,s);         if(cin.fail())break;          s = s.substr(2);  

#include #include using namespace std;int a[26]={-1,1,2,3,-1,1,2,-1,-1,           2,2,4,5,5,-1,1,            2,6,2,3,-1,1,-1,            2,-1,2};int main(){    string str,out;    int i,k;    while(cin

#include using namespace std;      int main(){    int Z, I, M, L ;    int temp, count ,next;    int index = 1 ;    while (1) {         scanf( "%d %d %d %d" , &Z, &I, &M, &L) ;         if (Z==0 && I==0

#include using namespace std;  int p[150][2];int main(){ int x,y,n,ans,i,j,k,a,b,dstn; double r;  while(cin>>x>>y>>r && r>0){  cin>>n;  k=ans=0;  for(i=0;i   cin>>a>>b;   if ((x-a)*(x-a)+(y-b)*(y-b)  

 Your company provides robots that can be used to pick up litter from fields after sporting events and concerts. Before robots are assigned to a job, an aerial photograph of the field is marked with

 Program 3： A DP Problem (TOJ_1283) In this problem, you are to solve a very easy linear equation with only one variable x with no parentheses! An example of such equations is like the following

 Program 4： Friends (TOJ_2469)There are some people traveling together. Some of them are friends. The friend relation is transitive, that is, if A and B are friends, B and C are friends, then A an

  C/C++ 程序设计实习报告  C/C++ Programing Practice Report       Group BPractice ⅠProgram 1： Web Navigation （TOJ_1196）解题方法：本题是道简单题，要模拟网页的打开，后退，以及前进的功能，道理很简单，和我们常用的IE浏览器一样

my c++ code:#include #include using namespace std; int main(){        int m,n;    scanf("%d%d",&m,&n);    string *str=new string [m];    int *ans = new int [m];    for(int i=0;i<m;i+

In how many ways can you choose k elements out of n elements, not taking order into account? Write a program to compute this number.Input SpecificationThe input file will contain one or more test

For each list of words, output a line with each word reversed without changing the order of the words. InputYou will be given a number of test cases. The first line contains a positive i