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Programming Articles
Page 2394 of 2547
Count all possible position that can be reached by Modified Knight in C++
In this tutorial, we will be discussing a program to find the number of possible positions that can be reached by Modified Knight.For this we will be provided with a 8*8 chessboard. Our task is to find the number of positions Modified Knight can capture with the given number of steps.Example#include using namespace std; //finding the positions void findSteps(int current_row, int current_column, int curr, int board_size, int steps, int* visited){ //bound checking if (current_row >= board_size || current_row < 0 || current_column >= board_size || current_column < 0 || curr > ...
Read MoreHow to Install C++ Compiler on Windows?
There are several alternatives for compiling C++ on windows. Let's look at 2 of them:GCCTo install GCC on Windows you need to install MinGW. To install MinGW, go to the MinGW homepage, www.mingw.org, and follow the link to the MinGW download page. Download the latest version of the MinGW installation program which should be named MinGW-.exe.While installing MinGW, at a minimum, you must install gcc-core, gcc-g++, Binutils, and the MinGW runtime, but you may wish to install more.Add the bin subdirectory of your MinGW installation to your PATH environment variable so that you can specify these tools on the command ...
Read MoreCount all possible paths between two vertices in C++
In this tutorial, we will be discussing a program to find the number of paths between two vertices.For this we will be provided with a directed graph. Our task is to find the number of paths possible between two given vertices.Example#include using namespace std; //constructing a directed graph class Graph{ int V; list *adj; void countPathsUtil(int, int, bool [], int &); public: //constructor Graph(int V); void addEdge(int u, int v); int countPaths(int s, int d); }; Graph::Graph(int V){ this->V = V; adj ...
Read MoreCount all possible N digit numbers that satisfy the given condition in C++
In this tutorial, we will be discussing a program to find the number of possible N digit numbers that satisfy the given condition.For this we will be provided with an integer. Our task is to check which one of number having N digits followNumber + Reverse(Number) = 10N -1Example#include using namespace std; //returning the count of numbers string count_num(int N){ if (N % 2 == 1) return 0; string result = "9"; for (int i = 1; i
Read MoreCount all perfect divisors of a number in C++
In this tutorial, we will be discussing a program to find the number of all perfect divisors of a number.For this we will be provided with a number. Our task is to count all the perfect divisors of that given number.Example#include using namespace std; //checking perfect square bool if_psquare(int n){ int sq = (int) sqrt(n); return (n == sq * sq); } //returning count of perfect divisors int count_pdivisors(int n){ int count = 0; for (int i=1; i*i
Read MoreCount all Palindromic Subsequence in a given String in C++
In this tutorial, we will be discussing a program to find the number of all palindromic subsequences in a given string.For this we will be provided with a string. Our task is to find the number of palindromic subsequences that can be made in that given string.Example#include #include using namespace std; //returning total palindromic sequence int count_palin(string str){ int N = str.length(); //creating a 2D array int cps[N+1][N+1]; memset(cps, 0 ,sizeof(cps)); for (int i=0; i
Read MoreCount all palindrome which is square of a palindrome in C++
In this tutorial, we will be discussing a program to find the number of palindromes which are squares of a palindrome.For this we will be provided with two values L and R. Our task is to find the number of super palindromes in the given range. A super palindrome is the one in which the number and its square both are palindromes.Example#include using namespace std; //checking if the number is a palindrome bool if_palin(int x){ int ans = 0; int temp = x; while (temp > 0){ ans = 10 * ans + ...
Read MoreCount all Palindrome Sub-Strings in a String in C++
In this tutorial, we will be discussing a program to find the number of palindrome sub strings in a string.For this we will be given a string. Our task is to count the number of palindrome sub strings in the given string with length greater than 3.Example#include using namespace std; //counting palindrome strings int count_pstr(char str[], int n){ int dp[n][n]; memset(dp, 0, sizeof(dp)); bool P[n][n]; memset(P, false , sizeof(P)); for (int i= 0; i< n; i++) P[i][i] = true; for (int i=0; i
Read MoreHow to Get Started with C++ Programming?
So you've decided to learn how to program in C++ but don't know where to start. Here's a brief overview of how you can get started.Get a C++ CompilerThis is the first step you'd want to do before starting learning to program in C++. There are good free C++ compilers available for all major OS platforms. Download one that suits your platform or you can use the tutorialspoint.com's online compiler on https://www.tutorialspoint.com/compile_cpp_online.phpGCC − GCC is the GNU Compiler chain that is basically a collection of a bunch of different compilers created by GNU. You can download and install this compiler ...
Read MoreHow can we add/insert a JButton to JTable cell in Java?
A JTable is a subclass of JComponent class and it can be used to create a table with information displayed in multiple rows and columns. When a value is selected from a JTable, a TableModelEvent is generated, which is handled by implementing a TableModelListener interface. We can add or insert a JButton to JTable cell by customizing the code either in DefaultTableModel or AbstractTableModel and we can also customize the code by implementing TableCellRenderer interface and need to override getTableCellRendererComponent() method.Exampleimport java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.table.*; public class JTableButtonTest extends JFrame { private JTable table; private JScrollPane scrollPane; public JTableButtonTest() { ...
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