Insert element position
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The document outlines a C++ program to insert an element into an array at a specified position, including detailed steps and code. It explains array declaration, insertion logic, and how to print the array before and after the insertion. Additionally, it includes error handling for invalid positions.
![Logic
• Given array for example:
• arr[]={1,2,3,4,5}
• Specify position at which position the num. to be
present ex:2
• Enter what element to be inserted:6
• Loop:
• for(i=n; i>pos-1;i--)
• { arr[i]=arr[i-1]}
• arr[pos-1]=ele
• Print Array before insertion and after insertion](https://image.slidesharecdn.com/insertelementposition-200912122547/85/Insert-element-position-3-320.jpg)
![• #include<iostream.h>
• #include<conio.h>
• void main()
• {
• int a[100],ele,n,i,pos;
• clrscr();
• cout<<"Enter the size of array"<<endl;
• cin>>n;
• cout<<"Enter the elements of array"<<endl;
• for(i=0;i<n;i++)
• {
• cin>>a[i];
• }
• cout<<"Enter the position to insert element"<<endl;
• cin>>pos;
• if(pos<n)
• {
• cout<<"Enter the element to be inserted"<<endl;
• cin>>ele;
• cout<<"Array before insertion:"<<endl;
• for(i=0;i<n;i++)
• {
• cout<<a[i]<<" ";
• }
• cout<<endl;
• for(i=n;i>pos-1;i--)
• {
• a[i]=a[i-1];
• }
• a[pos-1]=ele;
• cout<<"Array after insertion:"<<endl;
• for(i=0;i<=n;i++)
• {
• cout<<a[i]<<" ";
• }
• }
• else
• cout<<"Invalid position"<<endl;
• getch();
• }](https://image.slidesharecdn.com/insertelementposition-200912122547/85/Insert-element-position-5-320.jpg)
Insert element position
- 1. Write a program to insert an element into an array at a given position.
- 2. Agenda 1. Program in c++ 2. Array declaration and definition 3. Insert new element at the specified position 4. Print the array 1. Before Insertion 2. After Insertion
- 3. Logic • Given array for example: • arr[]={1,2,3,4,5} • Specify position at which position the num. to be present ex:2 • Enter what element to be inserted:6 • Loop: • for(i=n; i>pos-1;i--) • { arr[i]=arr[i-1]} • arr[pos-1]=ele • Print Array before insertion and after insertion
- 4. Let’s See Practically by writing the program
- 5. • #include<iostream.h> • #include<conio.h> • void main() • { • int a[100],ele,n,i,pos; • clrscr(); • cout<<"Enter the size of array"<<endl; • cin>>n; • cout<<"Enter the elements of array"<<endl; • for(i=0;i<n;i++) • { • cin>>a[i]; • } • cout<<"Enter the position to insert element"<<endl; • cin>>pos; • if(pos<n) • { • cout<<"Enter the element to be inserted"<<endl; • cin>>ele; • cout<<"Array before insertion:"<<endl; • for(i=0;i<n;i++) • { • cout<<a[i]<<" "; • } • cout<<endl; • for(i=n;i>pos-1;i--) • { • a[i]=a[i-1]; • } • a[pos-1]=ele; • cout<<"Array after insertion:"<<endl; • for(i=0;i<=n;i++) • { • cout<<a[i]<<" "; • } • } • else • cout<<"Invalid position"<<endl; • getch(); • }
- 6. Thank You