Question

Programming Fundamental (C++) Lab C++ Lab Ra'fat Amareh Faculty of Engineering and Information Technology Assignment Write a C++ program that performs the following: Prints on screen a selection menu as follow: a. Sin (x), Series b. Sum odd digit, Print Digits, Print Shape c. Array d. Exit If user presses a or A, the following sub menu should be displayed 1- Sin (x) (Program should solve the following series x - x'/3! + x®/5! – x/7...x"m!) 2- F (Program should solve the following series F=1/3! + 2*/51+ 30/71. ....**/(2n+1)! 3- Return to the main menu. If user presses b or B, the following sub menu should be displayed: 1- Sum odd digit (program should call a function that returns the sum of odd digits of any integer) 2- Print Digits: (program should call a function that prints the digit of any integer as the following example: x-1245 output is: 1 2 4 5). 3- Shape Gwrogram should call a function that takes number of rows (n) and print the following shape). 1 10 101 1010 4- Return to the main menu. If user presses e or C, the following sub menu should be displayed: 1. Fill Array (Program should call a function called fill_array(..) that fill the array with 5 elements) 2- Largest (Program should call a function called PrintLargest(..), that finds the largest number in the array) 3. Return to the main menu. To Exit press e or E. Page 1 of 1

Answer 1

CODE IN C++ :

#include<bits/stdc++.h>

using namespace std;

float factorial(float n)
{
return (n==1 || n==0) ? 1: n * factorial(n - 1);
}

void F()
{
cout << "Enter value of n to print a series upto n terms\n";
int n;
cin >> n;
int i = 2,k = 1,l = 3,j = 1;
float ans=0;
while(j<=n){
ans+=(pow(k,i)/factorial(l));
i+=2;
k+=1;
l+=2;
j+=1;
}
cout << "Value of the series is ...\n" << ans;
}

void SumOddDigits(int n){
int r,sd=0;
while ( n > 0)
{
r = n % 10;
if(r%2!=0)
{
sd = sd + r;
}
n = n/ 10;
}

cout << "Sum of Odd digits for given number is " << sd;

}

void PrintDigits(int n){
int d;
cout << "Digits of given number are \n";
while(n!=0){
d=n%10;
n=n/10;
cout << d << " ";
}

}

void Shape(int n){
cout << "Required Pattern is \n";
for(int i = 0;i < n;i++){
for(int j = 0;j <= i;j++){
if(j%2==0)
cout << "1" << " ";
else
cout << "0" << " ";
}
cout << "\n";
}

}

int a[6];

void FillArray(){
cout << "Enter 5 elements to fill in array\n";
cin >> a[0] >> a[1] >> a[2] >> a[3] >> a[4];
cout << "Array filled with given elements\n";

}

void Largest(){
int m=-1000000;
for(int i = 0;i < 5;i++){
if(a[i]>m)
m=a[i];
}
cout << "Largest Element in the array is " << m;

}

int main()
{
int choice;
do{
cout << "\nMain Menu : \n a) Press 1 to perform Sin(x),series.\n b) Press 2 to perform Sum Odd digits , Print digits , Print Shape.\n c) Press 3 to perform Array.\n d) Press 0 to exit.";
cout << "\n\n Please Enter you choice\n";
cin >> choice;
switch(choice){

case 1 :
int choice1;
do{
cout << "\n 1) Press 1 to perform Sin(x).\n 2) Press 2 to compute a series named F.\n 3) Press 3 to return to main menu.";

cout << "\n\n Please Enter you choice\n";
cin >> choice1;
switch(choice1){

case 1:
cout << "Enter Value of x \n";
float x;
cin >> x;
cout << "Value of sin(x) is " << sin(x);
cout << "\n";
break;

case 2:
F();
cout << "\n";
break;

}
}
while(choice1!=3);

case 2:
if (choice1==3){
choice1=0;
break;
}
int choice2;
do{
cout << "\n 1) Press 1 to Sum Odd Digits.\n 2) Press 2 to Print Digits. F\n 3) Press 3 to Print Shape.\n 4) Press 4 to return to main menu.";

cout << "\n\n Please Enter you choice\n";
cin >> choice2;
switch(choice2){

case 1:
int x1;
cout << "Enter a number to sum its odd digits.\n";
cin >> x1;
SumOddDigits(x1);
cout << "\n";
break;

case 2:
int x2;
cout << "Enter a number to print its digits.\n";
cin >> x2;
PrintDigits(x2);
cout << "\n";
break;

case 3:
int x3;
cout << "Enter number of rows to print a shape.\n";
cin >> x3;
Shape(x3);
cout << "\n";
break;
}
}
while(choice2!=4);

case 3:
if(choice2==4){
choice2=0;
break;
}
int choice3;
do{
cout << "\n 1) Press 1 to Fill an array with 5 elements.\n 2) Press 2 to Print Largest element in an array.\n 3) Press 3 to return to main menu.";

cout << "\n\n Please Enter you choice\n";
cin >> choice3;
switch(choice3){

case 1:
FillArray();
cout << "\n";
break;

case 2:
Largest();
cout << "\n";
break;

}
}
while(choice3!=3);

}
}
while(choice!=0);

}