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//WAP to read marks of 3 students and store them under an array. #include<iostream.h>

#include<conio.h>

void main()

{

     const int size=3;

     float marks[size];

     //    cout<<"Enter marks of student"<<i+1<<"\n";

     for(int i=0; i<size;i++)

     {

           cout<<"Enter marks of student"<<i+1<<"\n";

           cin>>marks[i];

     }

     cout<<"\n";

     for(i=0;i<size;i++)

     cout<<"Marks["<<i<<"]="<<marks[i]<<"\n";

     getch();

}

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/*Program to read prices of 5 goods in an array and then display sum of all the prices, product of all the prices and average of them*/

#include<iostream.h>

#include<conio.h>

void main()

{

     clrscr();

     const size=5;

     double price[5], avg, sum,prod;

     avg=sum=0;

     prod = 1;

     for(int i=0;i<size;++i)

     {

     cout<<"Enter price for "<<i+1<<" goods: "<<"\n";

     cin>>price[i];

     sum+=price[i];

     prod*=price[i];

     }

     avg=sum/5;

     cout<<"Sum of all prices "<<sum<<"\n";

     cout<<"Average of all prices "<<avg<<"\n";

     cout<<"Product of all prices "<<prod<<"\n";

     getch();

}

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

/*

WAP to sort an array on N numbers in ascending order.

Avoid duplication of elements.

*/

#include<iostream.h>

#include<conio.h>

void main()

{

     clrscr();

     int A[20], N, i, j, temp;

     cout<<"\nEnter the number of elements:";

     cin>>N;

     for(i=0;i<N;i++)

     cin>>A[i];

     //Bubble sort technique

     for(i=0;i<N;++i)

           for(j=0;j<(N-1)-i; j++)

           if(A[j]>A[j+1])

                {

                     temp=A[j];

                     A[j]=A[j+1];

                     A[j+1]=temp;

                     }

     cout<<"The elements in the array after sorting...";

     for(i=0;i<N;i++)

     {

     cout<<A[i]<<'\t';

     }

     getch();

     }

And many more....