find prime and check with the sum of all primes using c++

/* Print Prime List of the given range and do the sum then check weather the number is equal to the given number */

#include<iostream>

#include<conio.h>

using namespace std;

int prime_equal(int n)

{

    int c,sum=0;

    for(int i=1;i<=n;i++)

    {

        c=1;

        for(int j=2;j<=i/2;j++)

        {

            if(i%j==0)

            {

                c=0;

                break;

            }

        }

        if(c==1)

        {

            cout<<i<<"\t";

            sum+=i;

        }

    }

    cout<<endl;

    cout<<"The sum is:"<<sum<<endl;

    if(sum==n)

    {

        cout<<"The sum is equal to "<<n<<endl;

    }

    else

    {

        cout<<"The sum is not equal to "<<n<<endl;

    }

 return 0;

}

int main()

{

    int n;

    cout<<"Enter Range:"<<endl;

    cin>>n;

    cout<<"prime List:"<<endl;

    prime_equal(n);

    return 0;

}

find prime numbers and make sum of all primes using c++

/* Find all primes and do the sum of those primes between a given range */

#include<iostream>

#include<conio.h>

using namespace std;

void prime_check(int first,int last)

{

    int c,j,count=0,sum=0;

    cout<<"The Number of Primes:"<<endl;

    for(int i=first;i<=last;i++)

    {

        c=1;

        for(j=2;j<=i/2;j++)

        {

            if(i%j==0)

            {

                c=0;

                break;

            }

        }

        if(c==1)

        {

            count++;

            sum+=i;

        }

    }

        cout<<count<<"\t"<<endl;;

        cout<<"The sum of the prime number is:"<<sum<<endl;

}

int main()

{

    int first,last;

    cout<<"Range Start from:"<<endl;

    cin>>first;

    cout<<"End of Range:"<<endl;

    cin>>last;

    prime_check(first,last);

    getch();

    return 0; }

sum of all digits from an integer number using c++

/* A Program that reads a six digit integer and prints the sum of its six digit using Arithmatic operators. */

#include<iostream>

using namespace std;

int print_sum_of_digit(int number)

{

    int a,i,sum=0,count=0;

    if(number!=0)

    {

        while(number>0)

        {

            i=number%10;

            number=number/10;

            sum+=i;

            count++;

        }

         cout<<"Number of Digit:"<<count<<endl;

         return sum;

    }

}

int main()

{

    int number,i;

    cout<<"Enter the digit of six integer:"<<endl;

    cin>>number;

    cout<<"The sum of the digit is:"<<print_sum_of_digit(number)<<endl;

    return 0;

}

conditional operator in c++

/* Use of Conditional Operator */

#include<iostream>

using namespace std;

int Multiple(int a,int b);

int main()

{

int a,b;

cout<<"Enter two integer:"<<endl;

cin>>a>>b;

Multiple(a,b);

}

int Multiple(int a,int b)

{

if(a>b)

{

if(a%b==0)

cout<<"Multiple"<<endl;

else

cout<<"Not Multiple"<<endl;

}

else if(a<b)

{

if(b%a==0)

cout<<"Multiple"<<endl;

else

cout<<"Not Multiple"<<endl;

}

return 0;

}

comparison operator in c++

/* Use of Comparison Operator */

#include<iostream>

using namespace std;

string comparison(int age)

{

  string str;

  if(age<18)

    str="You are a child";

  else if(age>=18 && age<65)

    str="You are an adult";

  else if(age>=65)

    str="You are a senior citizen";

  return str;

}

int main()

{

    int age;

    cout<<"Enter Your Age to know who You are:"<<endl;

    cin>>age;

    cout<<comparison(age);

}

array programming in c++

/* Fill up an array,print the array,count number of values,count the number of odd,count the number of even,sum  of odd ,sum of even,average,find largest value,find smallest */

#include<iostream>

using namespace std;

int fill_up(int array[],int size);

int main()

{

    int array[10],size;

    cout<<"Enter the size of an array:"<<endl;

    cin>>size;

    fill_up(array,size);

}

int fill_up(int array[],int size)

{

    int count=0,even=0,odd=0,even_sum=0,odd_sum=0,largest,smallest;

    float avg=0.0,avg_sum=0.0;

    cout<<"Enter the element:"<<endl;

    for(int i=0;i<size;i++)

    {

        cin>>array[i];

        if(array[i]%2==0)

        {

           even++;

           even_sum+=array[i];

        }

        else

        {

            odd++;

            odd_sum+=array[i];

        }

        count++;

        avg_sum+=array[i];

    }

    avg=avg_sum/size;

    largest=array[0];

    smallest=array[0];

    for(int i=0;i<size;i++)

    {

        if(array[i]<smallest)

        {

            smallest=array[i];

        }

    }

    for(int i=0;i<size;i++)

    {

        if(array[i]>largest)

        {

            largest=array[i];

        }

    }

    cout<<"The value of the array is:"<<endl;

    for(int i=0;i<size;i++)

    {

        cout<<array[i]<<"\t";

    }

    cout<<endl;

    cout<<"The number of value into the array:"<<count<<endl;

    cout<<"The number of even Value is:"<<even<<endl;

    cout<<"The number of Odd value is:"<<odd<<endl;

    cout<<"The sum of the even number is:"<<even_sum<<endl;

    cout<<"The sum of the Odd number is:"<<odd_sum<<endl;

    cout<<"The Avarage is:"<<avg<<endl;

    cout<<"The Largest value is:"<<largest<<endl;

    cout<<"The Lowest value is:"<<smallest<<endl;

    return 0;

}

simple interest using c++

/* Write a C program to find the Simple Interest. Take input for Principle Amount, Rate of Interest and Time from terminal. */

  

#include<iostream>

#include<conio.h>

using namespace std;

int simple_interest(int a,int t,float i)

{

    float si=a*t*i/100;

    return si;

}

int main()

{

    int principle_amount,Time;

    float Interest_rate;

    cout<<"Enter the Principle Amount:"<<endl;

    cin>>principle_amount;

    cout<<"Enter the Time:"<<endl;

    cin>>Time;

    cout<<"Interest_rate"<<endl;

    cin>>Interest_rate;

    cout<<"Interest is:"<<simple_interest(principle_amount,Time,Interest_rate)<<endl;

}

 

Calculator using C++

/* Calculator that performing as calculator which allows all Arithmetic Operators with operands as input */

#include<iostream>

#include<stdlib.h>

#include<conio.h>

using namespace std;

int calculator(int a,char c,int b)

{

    int h,w,x,z;

    float y,m=0.0;

    z=(a+b);

    x=(a*b);

    w=(a-b);

    h=(a%b);

    y=(a/b);

    m=y;

    switch(c)

    {

    case '+':

        cout<<a<<"+"<<b<<"="<<z<<endl;

        break;

    case '-':

        cout<<a<<"-"<<b<<"="<<w<<endl;

        break;

    case '*':

        cout<<a<<"*"<<b<<"="<<x<<endl;

        break;

    case '/':

        cout<<a<<"/"<<b<<"="<<m<<endl;

        break;

    case '%':

        cout<<a<<"-"<<b<<"="<<x<<endl;

        break;

    default:

        cout<<"Error Input Program Terminated"<<endl;

        break;

    }

    getch();

    return 0;

}

int main()

{

    int a,b,x;

    char c,y;

    cout<<"Welcome To My Calculator:"<<endl;

    cout<<"Enter to calculate:"<<endl;

    start:

    cin>>a>>c>>b;

    calculator(a,c,b);

    cout<<"If you want to calculate more then press Y else N"<<endl;

    cin>>y;

    if(y=='y' || y=='Y')

    goto start;

    else if(y=='N' || y=='n')

    exit(0);

}

Class template to represent a generic vector

Write a class template to represent a generic vector. Include member functions to perform the following tasks:

1)  To create the vector.

2)  To modify the value of a given element.

3)  To multiply the vector by a scalar value.

4)  To display the vector in the form (10, 20, 30,…..)

#include<iostream.h>

#include<string.h>

#include<conio.h> template<class T> class vector

{

T *v; int size; public:

vector(int m); void create(T *a); void modify(int); void multiply(int); void display();

};

template<class T>

vector< T > :: vector(int m)

{

v=new T[size=m]; for(int i=0;i<size;i++) v[i]=0;

}

template<class T>

void vector<T>::create(T*a)

{

for(int i=0;i<size;i++)

{

cin>>a[i];

v[i]=a[i];

}

}

template<class T>

void vector<T>::modify(int k)

{

v[k]=v[k]+10;

}

template<class T>

void vector<T>::multiply(int k)

{

for(int i=0;i<size;i++) v[i]=v[i]*k;

}

template<class T>

void vector<T>::display()

{

cout.setf(ios::showpoint);

cout<<"\n(";

for(int i=0;i<size;i++) cout<<v[i]<<", "; cout<<")\n";

}

int main()

{

vector <float> v1(5); vector <int> v2(5); float *x;

int *y; int i; int s;

cout<<"Enter the float vector element :\n"; v1.create(x);

cout<<"Enter the Interger vector element :\n"; v2.create(y);

cout<<"enter the element u want to modify in float vector :"; cin>>i;

v1.modify(i);

v1.display();

cout<<"\nenter the element u want to modify in int vector :"; cin>>i;

v2.modify(i);

v2.display();

cout<<"\nenter the number to calculate the scalar product :"; cin>>s;

v1.multiply(s);

v2.multiply(s);

cout<<"\nthe Float vector after scalar product is as follows :"; v1.display();

cout<<"\nthe integer vector after scalar product is as follows :"; v2.display();

getch();

return(0);

}

***********************************OUTPUT*******************************

Enter the float vector element : 1.1 2.2 3.3 4.4 5.5

Enter the Integer vector element : 10 10 30 40 50

enter the element u want to modify in float vector :3

(1.100000, 2.200000, 3.300000, 14.400000, 5.500000, ) enter the element u want to modify in int vector :2

(10, 10, 40, 40, 50, )

enter the number to calculate the scalar product :2

the Float vector after scalar product is as follows : (2.200000, 4.400000, 6.600000, 28.799999, 11.000000, )

the integer vector after scalar product is as follows : (20, 20, 80, 80, 100, )