Example:1
Write a C++ program to take input for “n” element using an array further display all the elements. Allocate the memory dynamically.
#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
int n,i;
char ch;
do
{
cout<<"Enter total elements ";
cin>>n;
//dynamic memory allocation
int *p=new int[n];
//input
for(i=0;i<n;i++)
{
cout<<"Enter "<<i<<" element ";
cin>>p[i];
}
//display
for(i=0;i<n;i++)
{
cout<<p[i]<<endl;
}
//release memory
delete []p;
cout<<"Lke to cont .... (y/n) ";
cin>>ch;
}while(ch=='y' || ch=='Y');
return(0);
}
Output:
Enter total elements 3
Enter 0 element 10
Enter 1 element 20
Enter 2 element 30
10
20
30
Lke to cont …. (y/n) y
Enter total elements 5
Enter 0 element 14
Enter 1 element 52
Enter 2 element 63
Enter 3 element 87
Enter 4 element 55
14
52
63
87
55
Lke to cont …. (y/n) n
Example:2
Write a C++ program to take input for “n” element using an array further display all the elements. Also, calculate and print the sum of all the elements. Allocate the memory dynamically.
#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
int n,i,s;
char ch;
do
{
cout<<"Enter total elements ";
cin>>n;
//dynamic memory allocation
int *p=new int[n];
//input
for(i=0;i<n;i++)
{
cout<<"Enter "<<i<<" element ";
cin>>p[i];
}
//display
s=0;
for(i=0;i<n;i++)
{
cout<<p[i]<<endl;
s=s+p[i];
}
//release memory
delete []p;
cout<<"Sum = "<<s<<endl;
cout<<"Lke to cont .... (y/n) ";
cin>>ch;
}while(ch=='y' || ch=='Y');
return(0);
}
Output:
Enter total elements 3
Enter 0 element 12
Enter 1 element 32
Enter 2 element 45
12
32
45
Sum = 89
Lke to cont …. (y/n) y
Enter total elements 5
Enter 0 element 10
Enter 1 element 20
Enter 2 element 30
Enter 3 element 40
Enter 4 element 50
10
20
30
40
50
Sum = 150
Lke to cont …. (y/n) n
Example:3
Write a C++ program to take input for “n” element using an array further display all the elements. Also check and print the largest array element. Allocate the memory dynamically.
#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
int n,i,m;
char ch;
do
{
cout<<"Enter total elements ";
cin>>n;
//dynamic memory allocation
int *p=new int[n];
//input
for(i=0;i<n;i++)
{
cout<<"Enter "<<i<<" element ";
cin>>p[i];
}
//display
m=p[0];
//or
//m=*p;
for(i=0;i<n;i++)
{
cout<<p[i]<<endl;
if(p[i]>m)
m=p[i];
}
//release memory
delete []p;
cout<<"Max element = "<<m<<endl;
cout<<"Lke to cont .... (y/n) ";
cin>>ch;
}while(ch=='y' || ch=='Y');
return(0);
}
Output:
Enter total elements 5
Enter 0 element 14
Enter 1 element 52
Enter 2 element 36
Enter 3 element 85
Enter 4 element 32
14
52
36
85
32
Max element = 85
Lke to cont …. (y/n) y
Enter total elements 3
Enter 0 element 25
Enter 1 element 65
Enter 2 element 425
25
65
425
Max element = 425
Lke to cont …. (y/n) n
