Sorting in two classes student using Switch

// newplusplus.cpp : Defines the entry point for the console application.
//share with your friends if u found any errors please comments thanks :) :)
#include "stdafx.h"
#include<iostream>
#include<fstream>
#include<string>
using namespace std;
int flag=0;
void sortedoutput(int [], int&);
void input1(int d1[],int &a)
{
for(int i=0; i<a; i++)
{
cout<<"ENTER THE MARKS OF STUDENT"<<i+1<<":";
cin>>d1[i];
}// for end

}// input 1 end
void output(int d2[],int &b)
{
cout<<"__________output_____________"<<endl;
for(int j=0; j<b; j++)
{
cout<<"THE INPUT MARKS OF STUDENT "<<j+1<<":";
cout<<d2[j]<<endl;
}
}

void sorting(int ds[],int &num)
{
cout<<"_________sorting function_________"<<endl;
int hold;
for(int z=0; z<num; z++)
{
for(int m=0; m<num-1; m++)
{
if(ds[m]>ds[m+1])
{
hold=ds[m];
ds[m]=ds[m+1];
ds[m+1]=hold;
} // if end
}// nested for end
} // for end
sortedoutput(ds,num);
 
}
void sortedoutput(int so[], int&n)
{
cout<<"_____sorted output____"<<endl;
for(int i=0; i<n; i++)
{
cout<<so[i]<<endl;
}
}


int main()
{
system("cls");

int data1[200]; // class A array
int data2[200]; //class B array
int a1,a2;

cout<<"  welcome to the sorting array values in two classes"<<endl;
do{


int ch;
cout<<"\t\t********MENU***********"<<endl;
cout<<"\t\t1) input class A student"<<endl;
cout<<"\t\t2) input class B student"<<endl;
cout<<"\t\tt3)show the student in class A"<<endl;
cout<<"\t\tt4)show the student in class B"<<endl;
cout<<"\t\t5)sort the student in class A"<<endl;
cout<<"\t\t6)sort the student in class B"<<endl;
cout<<"enter the choice"<<endl;
cin>>ch;
switch(ch)
{

case 1:

cout<<"HOW MANY STUDENT IN YOUR CLASS A"<<endl;
cin>>a1;
input1(data1,a1);
flag=1;

break;
case 2:

cout<<"how many student in class b"<<endl;
cin>>a2;
input1(data2,a2);

break;
case 3:

if(flag==1)
output(data1,a1);  

else
cout<<"ENTER the input first in class A"<<endl;

break;
case 4:
if(flag==1)
output(data2,a2);

else 
cout<<"Enter the input first class B"<<endl;
break;
case 5:
 sorting(data1,a1);
break;
case 6:

sorting(data2,a2);
 
default:
cout<<"input wrong"<<endl;

}// switch end

}while(1); // do while main end


system("pause");
return 0;
}

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int main()

{

int arr[50],n;

cout<<"how many number"<<endl;

cin>>n;

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

{

cout<<"enter the number"<<i+1<<":";

cin>>arr[i];

}

cout<<"THe orignal numbers are"<<endl;

for(int j=0; j<n; j++)

{

cout<<arr[j]<<endl;

}

int hold;

cout<<"Now the sorted vales are"<<endl;

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

{

for(int j=0; j<n-1; j++)

{

if(arr[j]>arr[j+1])

{

hold=arr[j];

arr[j]=arr[j+1];

arr[j+1]=hold;

}// if end

}//nested for end

}//for end

cout<<"The sorted vales are"<<endl;

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

{

cout<<arr[i]<<endl;

}

system("pause");

return 0;

}

___________________________________________
OUTPUT

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Source code of to find the palindrome with output screen.

#include "stdafx.h"
#include <iostream>
using namespace std;


int main()
{

  int num,temp,rem,sum=0;
  cout<<"Enter the number ";
  cin>>num;
  temp=num;
  while(num>0)
  {
rem=num%10;
num=num/10;
sum=(sum*10)+rem;
  }
  if(temp==sum)
 cout<<"The number is palindrome"<<sum;
  else
 cout<<"The number is not palindrome";
 
cout<<endl;
  system("pause");
return 0;
}

----------------------------------------------------
The output of this programme is:

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Here is C++ Coding

----------------------------------------------------------------

#include "stdafx.h"

#include <iostream>

using namespace std;

int main()

{  

int sum,i,j,lim;

cout<<"ENTER THE LIMIT";

cin>>lim;

for(i=1; i<=lim; i++) //for loop execution

{

cout<<"1";

sum=1;

for(j=2; j<=i; j++) // again for loop execution

{

cout<<"+"<<j;

sum=sum+j;

}

cout<<"="<<sum<<endl;

}

cout<<endl;

system("pause");

return 0;

}

=================================

output of this programe is :

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How to Calculate table in c puls plus programming complete code.

// saved name : Defines the entry point for the console application.
//

#include "stdafx.h"
#include<iostream>
using namespace std;


int main()
{

int table,lenght,c;
cout<<"Enter the table";
cin>>table;
cout<<"Enter the table lenght";
cin>>lenght;
for(c=1; c<=lenght; c++)
{
cout<<table<<"*"<<c<<"="<<table*c<<endl;
}
system("pause");
return 0;
}

-------------------------------------------------------

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Using for loop to calculate and print product of add integers from 1 to 15.newplusplus panels

#include "stdafx.h"
#include <iostream>
using namespace std;

int main()
{
    int i,prod=1;

    for ( i = 1; i <=15; i+=2)
    {
       
            prod = i * prod;
    }
    cout << " product: " << prod <<endl;
system("pause");
    return 0;
}
-------------------------------------------------
output:

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Calculate the Factorial of positive number in the range of 0 to 10.

#include "stdafx.h"

#include <iostream>

using namespace std;

int main()

{

int num,i,fact=1;

cout<<"Enter the number "<<endl;

cin>>num; 

if ((num==1)||(num<=10)) 

{

for(i=num;i>1;i--) 

{

fact*=i; //factorial formula 

}

cout<< "factorial of " <<num<<"="<<fact<<endl; 

}

else

cout<<"your enter number= " << num << "is invalid"<<endl;

system("pause");

return 0;

}
---------------------------------------------------

output: 

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