Solar System animation in c++ programming language using openGL api and glut and glew as utility

Solar System animation in C++

code:

	//necessary header
	#include<iostream>
	#include<math.h>
	//Opengl utilities
	#include <GL\glew.h>
	#include<GL/GLU.h>
	#include<GL/GL.h>
	#include <GL\freeglut.h>
	//function prototype
	void display();
	void init();
	void reshape(int, int);
	void timer(int);
	void DrawCircle(float cx, float cy, float r, int num_segments);
	//custom function prototype
	int *orbitXY(float);
	int main(int argc, char** argv) {
	//initializing glut library
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
	//creating window
	glutInitWindowPosition(0, 0);
	glutInitWindowSize(3000, 3000);
	//window name
	glutCreateWindow("Solar system Simulation");
	//function to hold the screen
	glutDisplayFunc(display);
	//function to reshape the window
	glutReshapeFunc(reshape);
	//for animation
	glutTimerFunc(0, timer, 0);
	//to change window background
	init();
	glutMainLoop();
	return(0);
	}
	int xc_position = 600;
	int yc_position = 0;
	void display() {
	//clear
	glClear(GL_COLOR_BUFFER_BIT);
	//reset
	glLoadIdentity();
	//draw things
	glPointSize(100.0);
	//circle
	//for sun
	glColor3f(1.0, 0.0, 0.0);
	DrawCircle(0.0, 0.0, 150.0, 10000);
	//for earth
	glColor3f(0.0, 0.0, 1.0);
	DrawCircle(xc_position, yc_position, 100.0, 1000);
	//display
	glutSwapBuffers();
	}
	void init() {
	glClearColor(0.0, 0.0, 0.0, 1);
	glColor3f(1.0, 1.0, 1.0);
	}
	void reshape(int w, int h) {
	//view port
	glViewport(0, 0, w, h);
	//projection
	glMatrixMode(GL_PROJECTION);
	//reset
	glLoadIdentity();
	gluOrtho2D(-1000, 1000, -1000, 1000);
	glMatrixMode(GL_MODELVIEW);
	}
	void DrawCircle(float cx, float cy, float r, int num_segments)
	{
	glBegin(GL_LINE_LOOP);
	for (int ii = 0; ii < num_segments; ii++)
	{
	float theta = 2.0f * 3.1415926f * float(ii) / float(num_segments);//get the current angle
	float x = r * cosf(theta);//calculate the x component
	float y = r * sinf(theta);//calculate the y component
	glVertex2f(x + cx, y + cy);//output vertex
	}
	glEnd();
	}
	float angle = 0;
	void timer(int) {
	glutPostRedisplay();
	glutTimerFunc(1000 / 60, timer, 0);
	if (angle > 360) {
	angle = 0;
	}
	angle += 0.001;
	int *p = orbitXY(angle);
	xc_position = *(p + 0);
	yc_position = *(p + 1);
	}
	int *orbitXY(float angleInDegree) {
	static int tempxy[2];
	tempxy[0] = (int)(cos(angleInDegree) * 600 - sin(angleInDegree) * 0);
	tempxy[1] = (int)(sin(angleInDegree) * 600 + cos(angleInDegree) * 0);
	return tempxy;
	}

view raw solarSyatem.html hosted with ❤ by GitHub

Sorting of array in ascending order in 8085 assembly language

Sorting of array in 8085

Description:

Here all the array input is provided through address shown in simulator.

code:

	LXI H 4200h
	MOV C M
	DCR C
	REPEAT: MOV D C
	LXI H 4201h
	LOOP: MOV A M
	INX H
	CMP M
	JC SKIP
	MOV B M
	MOV M A
	DCX H
	MOV M B
	INX H
	SKIP: DCR D
	JNZ LOOP
	DCR C
	JNZ REPEAT
	HLT

view raw sortingArrayInAccendingOrder.html hosted with ❤ by GitHub

Addition of upper and lower nibble of a 8 bit number in 8085 assembly language

Addition of upper and lower nibble of a 8 bit number 

code:

	LXI H 8B20h
	LXI B 4000h
	MVI E 0Ah
	LOOP: MOV A M
	ANI 0Fh
	MOV D A
	MOV A M
	ANI F0h
	RLC
	RLC
	RLC
	RLC
	ADD D
	DAA
	STAX B
	INX H
	INX B
	DCR E
	JNZ LOOP
	HLT

view raw additionOfLowerAndUpperNibbleOf8BitData.html hosted with ❤ by GitHub

Addition of two 8 bit number in 8085 microprocessor assembly language

Addition of two 8 bit number

code

	MVI C 00h
	LDA 4150h
	MOV B A
	LDA 4151h
	ADD B
	JNC LOOP
	INR C
	LOOP: STA 4152h
	MOV A C
	STA 4153h
	HLT

view raw Add.html hosted with ❤ by GitHub

How to make Virtual Guitar in C++ programming language

Virtual Guitar

Audio file used in the project can be download through link below along with complete project:

Download here:

code

	#include <iostream>
	#include <windows.h>
	#include <conio.h>
	#include <mmsystem.h>
	using namespace std;
	class virtualGuitar{
	public:
	//Tunings function
	void tuningA();
	void tuningB();
	void tuningC();
	void tuningD();
	void tuningE();
	void tuningF();
	void tuningG();
	void tuningH();
	void tuningI();
	void tuningJ();
	void tuningK();
	void tuningL();
	void tuningM();
	void tuningN();
	void tuningP();
	void tuningQ();
	void tuningR();
	void tuningS();
	void tuningT();
	void tuningU();
	void tuningV();
	void tuningW();
	void tuningX();
	void tuningY();
	void tuningZ();
	void tuning1();
	void tuning2();
	void tuning3();
	void tuning4();
	void tuning5();
	//chord functions
	void chordA();
	void chordB();
	void chordC();
	void chordD();
	void chordE();
	void chordF();
	void chordG();
	void chordH();
	void chordI();
	void chordJ();
	void chordK();
	void chordL();
	void chordM();
	void chordN();
	void chordP();
	void chordQ();
	void chordR();
	void chordS();
	void chordT();
	void chordU();
	void chordV();
	void chordW();
	void chordX();
	void chordY();
	void chordZ();
	void chord1();
	void chord2();
	void chord3();
	void chord4();
	//user interface functions
	void displayUI();
	void music();
	};
	//tuning function declaration
	void virtualGuitar::tuningA(){
	PlaySound(TEXT("1st_String_E.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningB(){
	PlaySound(TEXT("1st_String_E_64kb.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningC(){
	PlaySound(TEXT("1st_String_E_vbr.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningD(){
	PlaySound(TEXT("2nd_String_B_.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningE(){
	PlaySound(TEXT("2nd_String_B__64kb.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningF(){
	PlaySound(TEXT("2nd_String_B__vbr.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningG(){
	PlaySound(TEXT("3rd_String_G.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningH(){
	PlaySound(TEXT("3rd_String_G_64kb.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningI(){
	PlaySound(TEXT("3rd_String_G_vbr.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningJ(){
	PlaySound(TEXT("4th_String_D.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningK(){
	PlaySound(TEXT("4th_String_D_64kb.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningL(){
	PlaySound(TEXT("4th_String_D_vbr.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningM(){
	PlaySound(TEXT("5th_String_A.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningN(){
	PlaySound(TEXT("5th_String_A_64kb.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningP(){
	PlaySound(TEXT("5th_String_A_vbr.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningQ(){
	PlaySound(TEXT("6th_String_E.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningR(){
	PlaySound(TEXT("6th_String_E_64kb.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningS(){
	PlaySound(TEXT("6th_String_E_vbr.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningT(){
	PlaySound(TEXT("C.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningU(){
	PlaySound(TEXT("C_64kb.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningV(){
	PlaySound(TEXT("C_vbr.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningW(){
	PlaySound(TEXT("D.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningX(){
	PlaySound(TEXT("D_64kb.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningY(){
	PlaySound(TEXT("D_vbr.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuningZ(){
	PlaySound(TEXT("Dm.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuning1(){
	PlaySound(TEXT("Dm_64kb.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuning2(){
	PlaySound(TEXT("Dm_vbr.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuning3(){
	PlaySound(TEXT("E.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuning4(){
	PlaySound(TEXT("E_64kb.WAV"),NULL,SND_SYNC);
	}
	void virtualGuitar::tuning5(){
	PlaySound(TEXT("E_vbr.WAV"),NULL,SND_SYNC);
	}
	//chord function declaration
	void virtualGuitar::chordA(){
	tuningA();
	}
	void virtualGuitar::chordB(){
	tuningB();
	}
	void virtualGuitar::chordC(){
	tuningC();
	}
	void virtualGuitar::chordD(){
	tuningD();
	}
	void virtualGuitar::chordE(){
	tuningE();
	}
	void virtualGuitar::chordF(){
	tuningF();
	}
	void virtualGuitar::chordG(){
	tuningG();
	}
	void virtualGuitar::chordH(){
	tuningH();
	}
	void virtualGuitar::chordI(){
	tuningI();
	}
	void virtualGuitar::chordJ(){
	tuningJ();
	}
	void virtualGuitar::chordK(){
	tuningK();
	}
	void virtualGuitar::chordL(){
	tuningL();
	}
	void virtualGuitar::chordM(){
	tuningM();
	}
	void virtualGuitar::chordN(){
	tuningN();
	}
	void virtualGuitar::chordP(){
	tuningP();
	}
	void virtualGuitar::chordQ(){
	tuningQ();
	}
	void virtualGuitar::chordR(){
	tuningR();
	}
	void virtualGuitar::chordS(){
	tuningS();
	}
	void virtualGuitar::chordT(){
	tuningT();
	}
	void virtualGuitar::chordU(){
	tuningU();
	}
	void virtualGuitar::chordV(){
	tuningV();
	}
	void virtualGuitar::chordW(){
	tuningW();
	}
	void virtualGuitar::chordX(){
	tuningX();
	}
	void virtualGuitar::chordY(){
	tuningY();
	}
	void virtualGuitar::chordZ(){
	tuningZ();
	}
	void virtualGuitar::chord1(){
	tuning1();
	}
	void virtualGuitar::chord2(){
	tuning2();
	}
	void virtualGuitar::chord3(){
	tuning3();
	}
	void virtualGuitar::chord4(){
	tuning4();
	}
	//user interface declaration
	void virtualGuitar::displayUI(){
	//STARTING OF DISPLAY
	cout<<"\n\n\tTHESE ARE THE KEY YOU NEED TO USE FROM KEYBOARD TO PRODUCE SOUND OF VARIOUS FREQUENCES:)\n\n\n";
	for(int i = 1; i<=24; i++){
	for(int j=1; j<=80;j++){
	if(i==1||j==1||i==24||j==80){
	cout<<"= ";
	}else if(i==8){
	cout<<"= ";
	}else if(i==16){
	cout<<"= ";
	}else if(j==8){
	cout<<"= ";
	}else if(j==16){
	cout<<"= ";
	}else if(j==24){
	cout<<"= ";
	}else if(j==32){
	cout<<"= ";
	}else if(j==40){
	cout<<"= ";
	}else if(j==48){
	cout<<"= ";
	}else if(j==56){
	cout<<"= ";
	}else if(j==64){
	cout<<"= ";
	}else if(j==72){
	cout<<"= ";
	}else if(i==4&&j==4){
	cout<<"Q ";
	}else if(i==4&&j==12){
	cout<<"W ";
	}else if(i==4&&j==20){
	cout<<"E ";
	}else if(i==4&&j==28){
	cout<<"R ";
	}else if(i==4&&j==36){
	cout<<"T ";
	}else if(i==4&&j==44){
	cout<<"Y ";
	}else if(i==4&&j==52){
	cout<<"U ";
	}else if(i==4&&j==60){
	cout<<"I ";
	}else if(i==4&&j==68){
	cout<<"O ";
	}else if(i==4&&j==76){
	cout<<"P ";
	}else if(i==12&&j==4){
	cout<<"A ";
	}else if(i==12&&j==12){
	cout<<"S ";
	}else if(i==12&&j==20){
	cout<<"D ";
	}else if(i==12&&j==28){
	cout<<"F ";
	}else if(i==12&&j==36){
	cout<<"G ";
	}else if(i==12&&j==44){
	cout<<"H ";
	}else if(i==12&&j==52){
	cout<<"J ";
	}else if(i==12&&j==60){
	cout<<"K ";
	}else if(i==12&&j==68){
	cout<<"L ";
	}else if(i==12&&j==76){
	cout<<"UP";
	}else if(i==20&&j==4){
	cout<<"Z ";
	}else if(i==20&&j==12){
	cout<<"X ";
	}else if(i==20&&j==20){
	cout<<"C ";
	}else if(i==20&&j==28){
	cout<<"V ";
	}else if(i==20&&j==36){
	cout<<"B ";
	}else if(i==20&&j==44){
	cout<<"N ";
	}else if(i==20&&j==52){
	cout<<"M ";
	}else if(i==20&&j==60){
	cout<<"LF";
	}else if(i==20&&j==68){
	cout<<"DN";
	}else if(i==20&&j==76){
	cout<<"RT";
	}else{
	cout<<" ";
	}
	}
	cout<<"\n";
	}
	cout<<"\n\n\tIf you want to exit press ENTER :) ";
	//ENDING OF DISPLAY
	}
	void virtualGuitar::music(){
	char select;
	while(1){
	select = getch();
	switch(select){
	case 'q':
	chordA();
	break;
	case 'w':
	chordB();
	break;
	case 'e':
	chordC();
	break;
	case 'r':
	chordD();
	break;
	case 't':
	chordE();
	break;
	case 'y':
	chordF();
	break;
	case 'u':
	chordG();
	break;
	case 'i':
	chordH();
	break;
	case 'o':
	chordI();
	break;
	case 'p':
	chordJ();
	break;
	case 'a':
	chordK();
	break;
	case 's':
	chordL();
	break;
	case 'd':
	chordM();
	break;
	case 'f':
	chordN();
	break;
	case 'g':
	chordP();
	break;
	case 'h':
	chordQ();
	break;
	case 'j':
	chordR();
	break;
	case 'k':
	chordS();
	break;
	case 'l':
	chordT();
	break;
	case 'z':
	chordU();
	break;
	case 'x':
	chordV();
	break;
	case 'c':
	chordW();
	break;
	case 'v':
	chordX();
	break;
	case 'b':
	chordY();
	break;
	case 'n':
	chordZ();
	chord4();
	break;
	case 'm':
	chord1();
	chord2();
	chord3();
	break;
	default:
	exit(0);
	}
	}
	}
	int main(){
	virtualGuitar dude;
	dude.displayUI();
	dude.music();
	return 0;
	}

view raw VirtualGuitar.html hosted with ❤ by GitHub

How to make Maze in 2d using C programming language using concept of Data structure and Algorithm

MAZE Generator

ALGORITHM

1.  Start
2. Declaration of all the necessary variable.
3. Display initial message to user to perform some task.
4. Depending upon the user input perform task as below:

a)    if userInput == 1 then draw maze.

                                                                             i.          Take length and width of maze from user.

                                                                           ii.          Allocate memory segment for all maze dynamically.

                                                                         iii.          Set boundary  with “#” character.

                                                                         iv.           Link inner node with each other.

                                                                           v.          Check whether destination is wall or not.if not make it blank.

                                                                         vi.          Draw character of each node to generate maze.

b)    else if userInput == 2 then terminate  the program.

c)     else goto step 3.

1.  Handle  all necessary exception.
2.   stop.

      CODE

	/*
	##########################################################################################################################
	# #
	# MAZE GENERATOR PROGRAM IN C PROGRAMMING LANGUAGE USING CONCEPT OF DATA STRUCTURE AND ALGORITHM #
	# #
	##########################################################################################################################
	*/
	#include <stdio.h>
	#include <stdlib.h>
	#include <time.h>
	#include <string.h>
	#include <conio.h>
	typedef struct{
	int x, y; //Node position - little waste of memory, but it allows faster generation
	void *parent; //Pointer to parent node
	char c; //Character to be displayed
	char dirs; //Directions that still haven't been explored
	}Node;
	Node *nodes; //Nodes array or pointer that works similar to the array
	int width, height; //Maze dimensions should be in odd integer number
	int init(){
	int i, j;
	Node *n;
	nodes = calloc( width * height, sizeof( Node ) ); //Allocate memory for maze
	// printf("nodes = %d\n\n",nodes);
	if ( nodes == NULL ){ //Exception handling
	return 1;
	}
	// to create boundaries
	for ( i = 0; i < width; i++ ){ //Setup crucial nodes
	for ( j = 0; j < height; j++ ){
	n = nodes + i + j * width;
	if ( i * j % 2 ){ //for creating cell of maze
	n->x = i;
	n->y = j;
	n->dirs = 15; //00001111 //Assume that all directions can be explored (4 youngest bits set)
	n->c = ' ';
	}else{ //Add walls between nodes
	n->c = '#';
	}
	} //ending of inner for
	}
	//ending of outer for
	return 0; // returning zero to say task successfully completed
	}
	Node *link( Node *n ){
	//Connects node to random neighbor (if possible) and returns
	//address of next node that should be visited
	int x, y;
	char dir;
	Node *dest;
	//Nothing can be done if null pointer is given - return
	if ( n == NULL ){ //Exception handling
	return NULL;
	}
	//While there are directions still unexplored
	while ( n->dirs ){
	/* rand function gives random value among 0,1,2,3.
	depending upon the random value shifted 00000001 to left
	for rand = 0, dir = 00000001 == 1
	for rand = 1, dir = 00000010 == 2
	for rand = 2, dir = 00000100 == 4
	for rand = 3, dir = 00001000 == 8
	00000001
	*/
	dir = ( 1 << ( rand() % 4 ) ); //Randomly pick one direction
	/*
	if dir = 00000001
	~00001111 == 11110000 bitwise 00000001
	ie 11110000 & 00000001 == 000000000
	*/
	//If it has already been explored - try again(exception handling)
	if ( ~ n->dirs & dir ){
	continue;
	}
	/*
	if dir = 00000001 then ~dir == 11111110 == 254
	a += b
	== a = a + b
	similarly
	n->dirs &= ~dir;
	==
	n->dirs = n->dirs & ~dir;
	14 == 00001110 = 00001111 & 11111110
	*/
	n->dirs &= ~dir; //Mark direction as explored
	//Depending on chosen direction
	switch ( dir ){
	//Check if it's possible to go right
	case 1:
	/*
	#####
	#####
	#####
	*/
	if ( n->x + 2 < width ){
	x = n->x + 2;
	y = n->y;
	}else{
	continue;
	}
	break;
	//Check if it's possible to go down
	case 2:
	if ( n->y + 2 < height){
	x = n->x;
	y = n->y + 2;
	}else{
	continue;
	}
	break;
	//Check if it is possible to go left
	case 4:
	if ( n->x - 2 >= 0 ){
	x = n->x - 2;
	y = n->y;
	}else{
	continue;
	}
	break;
	//Check if it's possible to go up
	case 8:
	if ( n->y - 2 >= 0 ){
	x = n->x;
	y = n->y - 2;
	}else{
	continue;
	}
	break;
	}
	/*
	nodes = 6500728
	let x = 1 and y = 1
	then x= 3, y =1
	so dest = 6500728 + 3 + 1 * 21
	= 6500752
	*/
	dest = nodes + x + y * width; //Get destination node into pointer (makes things a tiny bit faster)
	if ( dest->c == ' ' ){ //Make sure that destination node is not a wall
	//If destination is a linked node already - abort(terminated)
	if ( dest->parent != NULL ){
	continue;
	}
	dest->parent = n; //Otherwise, adopt node
	/*
	n->x + ( x - n->x ) / 2 + ( n->y + ( y - n->y ) / 2 ) * width
	1+(3 - 1)/2 + (1 +(1 - 1)/2)*21 == 23
	here address of nodes[0] = 6500728
	address of nodes[23] = 6500728 + 23 = 6500751
	*/
	//Remove wall between nodes
	nodes[ n->x + ( x - n->x ) / 2 + ( n->y + ( y - n->y ) / 2 ) * width ].c = ' ';
	//Return address of the child node
	return dest;
	}
	}
	//If nothing more can be done here - return parent's address
	return n->parent;
	}
	void draw(){
	int i, j;
	//Outputs maze to terminal - nothing special
	for ( i = 0; i < height; i++ ){
	for ( j = 0; j < width; j++ ){
	printf( "%c", nodes[j + i * width].c );
	}
	printf( "\n" );
	}
	}
	/* method to move the player for future plan
	void player(Node *basant){
	char select;
	Node *currentBasant;
	if(basant == NULL){
	printf("Error in player !!!");
	}else{
	basant->c = '#';
	printf(" A for Left\n");
	printf(" W for Up\n");
	printf(" D for Right\n");
	printf(" S for Down\n");
	while(1){
	select = getch();
	switch(select){
	case 'a':
	if(basant[0-1].c =='#'){
	}else{
	basant[0].c == ' ';
	basant[0-1].c = '#';
	currentBasant = & basant[0-1];
	}
	//left arrow
	###
	###
	###
	break;
	case 'w':
	//up arrow
	if(basant[0-width].c == '#'){
	}else{
	basant[0].c == ' ';
	basant[0-width].c = '#';
	currentBasant = & basant[0-width];
	}
	break;
	case 'd':
	//right arrow
	if(basant[0+1].c == '#'){
	}else{
	basant[0].c == ' ';
	basant[0+1].c = '#';
	currentBasant = &basant[0+1];
	}
	break;
	case 's':
	//down arrow
	if(basant[0+width].c == '#'){
	}else{
	basant[0].c == ' ';
	basant[0+width].c = '#';
	currentBasant = &basant[0+width];
	}
	break;
	default:
	continue;
	}
	//to draw a maze
	system("CLS");
	draw();
	basant = currentBasant;
	}
	}
	}
	*/
	int main(){
	Node *start, *last, *playerPosition;
	int ch;
	while(1){
	printf("\nWE HAVE FOLLOWING SERVICES.");
	printf("\n1.draw Maze");
	printf("\n2.Exit");
	printf("\nEnter tour choice : ");
	scanf("%d",&ch);
	switch(ch){
	case 1 :
	//taking user input
	printf("Enter dimension of maze( add number only ):>\n");
	printf("Width = ");
	scanf("%d",&width);
	printf("Height = ");
	scanf("%d",&height);
	printf("\n\n Generated maze is :\n\n\n\n");
	//checking for dimension validity
	if ( width < 3 || height < 3 ){
	printf("invalid maze size value!\n");
	exit( 1 );
	}
	//Allow only odd dimensions
	if ( !( width % 2 ) || !( height % 2 ) ){
	printf("dimensions must be odd!\n");
	exit( 1 );
	}
	//Do not allow negative dimensions
	if ( width <= 0 || height <= 0 ){
	printf("dimensions must be greater than 0!\n");
	exit( 1 );
	}
	//Seed random generator
	srand( time( NULL ) );
	//checking memory leak
	if ( init() ){
	printf("out of memory!\n");
	exit( 1 );
	}
	//Setup start node
	/*
	start = nodes + 1 + width;
	= 6500728 +1 + 21
	= 6500750
	#######################################
	#start
	*/
	start = nodes + 1 + width;
	playerPosition = start;
	start->parent = start;
	last = start;
	//Connect nodes until start node is reached and can't be left
	while( ( last = link(last) ) != start );
	draw();
	//code for player
	//function call to move the player for future plan
	//player(playerPosition);
	break;
	case 2:
	exit(0);
	break;
	default:
	printf("\nEnter correct choice !!!");
	}
	}
	}

view raw MazeGenerator.html hosted with ❤ by GitHub

program to find prime number in c plus plus using object oriented concept

Code:


#include"pch.h"
#include<iostream>
#include<conio.h>

 using namespace std;

  class prime
  {
  public:
  void getdata(void);
  void showdata(void);
  void checkprime(void);
  private:
  int number, i, flag = 1;
  };


  void prime::getdata(void)
  {
  cout << "Enter number which is to check : ";
  cin >> number;

  }

  void prime::showdata(void)
  {
  if (flag)
  {
  cout << "Entered number is prime .";

  }
  else
  {

  cout << "Entered number is not prime";
  }

  }

  void prime::checkprime(void)
  {
  if (number == 2)
  {
  cout << "Entered number is prime ";
  }
  else if (number > 2)
  {
  for (i = 2; i <= (number / 2); i++) {
  if (number%i == 0) {
  flag = 0;
  break;
  }
  }
  }
  else
  {
  cout << " Enter valid positive number greater then 1 !!!";
  }
  }



int main() {

prime p;
p.getdata();
p.checkprime();
p.showdata();

return(0);
}

Output :

program to find prime number using procedural pattern in c plus plus

Question: Program to find prime number.


Solution:
#include"pch.h"
#include<iostream>
#include<conio.h>

  using namespace std;

int main() {
int n,i;
int flag = 1;
cout << "Enter number which is to check : ";
cin >> n;
if (n==2)
{
cout << "Entered number is prime ";
}
else if (n >2 ) 
{
for (i = 2; i <= (n/2); i++) {
if (n%i==0) {
flag = 0;
break;
}

}

if (flag)
{
cout << "Entered number is prime .";

}
else
{

cout << "Entered number is not prime";
}

}
else
{
cout << " Enter valid positive number greater then 1 !!!";
}

return(0);

}

Output:

C plus plus example

Question :  Write a program to create class "time"  with data members hours,minute and second ,then add two "time" objects by taking as argument and also returning object as an argument.

Solution :


#include"pch.h"
#include<iostream>
#include<conio.h>

class time
{
public:
time();
~time();
void setData();
void display();
time addTime( time);

private:
int hour, minute, second;

};

time::time()
{
hour = 0;
minute = 0;
second = 0;
}

time::~time()
{

}

void time::setData()
{
std::cout << "Enter Hour : ";
std::cin >> hour;
std::cout << "Enter Minute : ";
std::cin >> minute;
std::cout << "Enter Second : ";
std::cin >> second;
}

void time::display()
{
std::cout << "\nHour = " << hour << "\tMinute = " << minute << "\tSecond = " << second;
}

time time::addTime( time t2)
{
time temp;
temp.hour = hour + t2.hour;
temp.minute = minute + t2.minute;
temp.second = second + t2.second;
return time(temp);
}



int main() {

time t1, t2, t3;
t1.setData();
t2.setData();
t3 = t1.addTime(t2);
t3.display();
return(0);

}



Output: