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
#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
#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
#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
#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
#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
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