program to display Double pyramid number pattern in C++

program to display Double pyramid number pattern in C++

In this tutorial, we will discuss the concept of the program to display Double pyramid number pattern in C++

In this post, we will learn how to create  double (integrated)pyramid number patterns in C++ programming language.

We can use for loop, while loop or do while loop to display different integrated pyramid number patterns.

 

Here, we will use for loop to print different integrated pyramid number patterns

Program 1

Integrated pyramid number pattern 1

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int rows,i,j;
    cout << "Enter the number of rows: "<< endl;
    cin>>rows;                 //takes input from the user
    for(i=1; i<=rows; i++){    //print upper part
    for(j=i; j<=rows; j++){
      cout << j;//print number for upper part
}
cout << "\n";//move to next line
}

for(i=rows-1; i>=1; i--){  //print lower part
    for(j=i; j<=rows; j++){
      cout << j;//print number for lower part
}
cout << "\n";//move to next line
        }
        getch();
    return 0;
}

 

When the above code is executed, it produces the following result

Enter the number of rows: 6
123456
23456
3456
456
56
6
56
456
3456
23456
123456

 

Program 2

Integrated pyramid number pattern 2

#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
    int rows,i,j;
    cout<<"Enter the number of rows: ";
    cin>>rows;//take input from user
    for(i=rows; i>=0; i--){    //print upper part
    for(j=1; j<=i; j++){
      cout<<j;//print number for upper part
      cout<<" ";
}
cout<<"\n";//move to next line
}
for(i=1; i<=rows; i++){  //print lower part
    for(j=1; j<=i; j++){
      cout<<j;//print number for lower part
      cout<<" ";
}
cout<<"\n";//move to next line
        }
    return 0;
}

 

When the above code is executed, it produces the following result

Enter the number of rows
6
1 2 3 4 5 6 
1 2 3 4 5 
1 2 3 4 
1 2 3
1 2
1
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6

 

 

Program 3

Integrated pyramid number pattern 3

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int rows,i,j,k;
    cout<<"Enter the number of rows\n";
    cin>>rows;
    for(i=1; i<=rows; i++){    //print upper part
    for(j=1; j<=i; j++){
       cout<<" ";//print space
}
for(k=i; k<=rows; k++){
       cout<<k;//print number for upper part
       cout<<" ";
}
 cout<<"\n";//move to next line
}

for(i=rows-1; i>=1; i--){  //print lower part
    for(j=1; j<=i; j++){
       cout<<" ";//print space
}
for(k=i; k<=rows; k++){
       cout<<k;//print number for lower part
       cout<<" ";
}
 cout<<"\n";//move to next line

}
getch();
return 0;
}

When the above code is executed, it produces the following result

Enter the number of rows: 6
1   2   3   4   5   6
  2   3   4   5   6
    3   4   5   6
      4   5   6
        5   6
          6
        5   6
      4   5   6
    3   4   5   6
  2   3   4   5   6
1   2   3   4   5   6

 

Program 4

Integrated pyramid number pattern 4

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int rows,i,j;
    cout<<"Enter the number of rows: ";
    cin>>rows;
    for(i=1; i<=rows; i++){    //print upper part
    for(j=1; j<i; j++){
      cout<<" ";//print space
}
for(j=i; j<=rows; j++){
      cout<<j;//print number for upper part
}
cout<<"\n";
}

for(i=rows-1; i>=1; i--){
  for(j=1; j<i; j++){
      cout<<" ";//print space
}

for(j=i; j<=rows; j++){  //print lower part
      cout<<j;//print number for lower part
}
cout<<"\n";
        }
getch();
    return 0;
}

 

When the above code is executed, it produces the following result

Enter the number of roes: 6
123456
  23456
    3456
      456
        56
          6
        56
      456
    3456
  23456
123456

 

Program 5

Integrated pyramid number pattern 5

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int rows,i,j,k;
    cout<<"Enter the number of rows: ";
    cin>>rows;
    for(i=1; i<=rows; i++){    //print upper part
    for(j=1; j<=rows-i; j++){
      cout<<" ";
}
for(k=1; k<=i; k++){
      cout<<k;//print number for upper part
     cout<<" ";
}
cout<<"\n";
}

for(i=1; i<=rows-1; i++){  //print lower part
    for(j=1; j<=i; j++){
      cout<<" ";
}
for(k=1; k<=rows-i; k++){
      cout<<k;//print number for lower part
      cout<<" ";
}
cout<<"\n";
        }
        getch();
    return 0;
}

 

When the above code is executed, it produces the following result

Enter the number of rows: 6
         1
       1  2
     1  2  3
   1  2  3  4
  1  2  3  4  5
1  2  3  4  5  6
  1  2  3  4  5
    1  2  3  4
      1  2  3 
        1  2
          1

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