c++ project reports

#include <iostream>

#include<ctime>

using namespace std;

void MinutesHours_conversion();

void Lottery_Draw();

void Draw_SquarePattern();

void TimeConversion(int);

int main()

{

cout << "There are 4 functionality of this project.The following list will give the options to choose for the respective operations. Choose the correct option to proceed.Thank You..!!!"<<endl;

int c=0;//variable to choose from the menu

while(c!=4){

cout<<"\t \t"<<"OPERATIONS"<<endl;

cout<<" \t"<<" 1.Time conversion"<<endl;

cout<<"\t 2.Print a hollow square"<<endl;

cout<<"\t 3.Lottery drawing"<<endl;

cout<<"\t 4.Exit";

cin>>c;

switch(c){

case 1:MinutesHours_conversion();

break;

case 2:Draw_SquarePattern();

break;

case 3:Lottery_Draw();

break;

case 4:break;

default:

cout<<"Wrong choice..!!! Please select valid options from the menu..";

}

}

return 0;

}

void MinutesHours_conversion(){

int min;

cout<<" Time Conversion "<<endl;

cout << " Enter in minutes : ";

cin >> min;

TimeConversion(min);

}

void TimeConversion(int minute){

double j;

double m=(double) minute;

for(j=m;j<=m+20;j++){

cout<<j<<" minutes \t";

cout<<j/60<<"hours";

cout<<"\n";

}

}

void Draw_SquarePattern(){

int sz;

cout<<" Pattern of Hollow Square "<<endl;

cout<< "Enter size:";

cin>>sz;

for(int v=1; v<=sz; v++)

{

if(v <= 1)

for(int v=1; v<=sz; v++)

{

cout<< "#";

}

else if(v<sz)

{

cout<< endl;

for(int w=1; w<=sz; w++)

{

if(w==1 || w==sz)

cout<< "#";

else

cout<< " ";

}}

else

{

cout<< endl;

for(int x=1; x<=sz; x++)

{

cout<<"#";

}

}

}

}

void Lottery_Draw(){

// Declare Variables

int draw_ball,x,opt;

int ball_drawdrawings(int&);

// Title

cout << ' ' << endl;

cout << '\t' << "Lottery Draw!" << endl;

cout << ' ' << endl;

// Call to Function

x=ball_drawdrawings(draw_ball);

// End function

}

int ball_drawdrawings(int&)

{

int draw;

double en(0), sevn(0), x_y_z(0); // The declaration of variable are done here

double percen_en = 0.0, perc_7 = 0.0, perc_123 = 0.0;

int maxps= 1;

int count= 1;

// Input From User

cout << "Enter the number of lottery drawings that is to be simulated ";

cin >> draw;

cout << ' ' << endl;

// Numbers randomized

srand((int)time(NULL)); // To include <ctime> header

while (count <= draw) {

for (int k=1; k<=3; k++)

{

int rounding = rand()%10+1;

cout << rounding << ' ';

if (rounding == 7) {

sevn++;

}

else

{

if ((rounding % 2) == 0) {

en++;

}

else

{

if (rounding == 1 || rounding == 2 || rounding == 3)

{

x_y_z++;

}

}

}

}

cout << ' ' << endl;

maxps= count;

count++;

}

percen_en = (en/(draw*3.0))*100.0;

perc_7 = (sevn/(draw*3.0))*100.0;

perc_123 = (x_y_z/(draw*3.0))*100.0;

// The sreen displays the output

//The checking for precision

cout << ' ' << endl;

cout << "The three ball_draws were even " << percen_en << "% of the time." << endl;

cout << "The number seven appeared on one of the three ball_draws " << perc_7 << "% of the time." << endl;

cout << "The numbers 1, 2, and 3 occured on the ball_draws " << perc_123 << "% of the time." << endl;

cout << ' ' << endl;

return rand();

}