Program to print the Half Pyramid Number Pattern

Write a C Program to print the Half Pyramid Number Pattern.

1
12
123
1234
12345

Problem statement:-  Program to print the Half Pyramid Number Pattern

 Data requirement:-

   Input Data:- row_size

  Output Data:- in or i(In Python)

  Additional Data:-out
Program in C
  
Here is the source code of the C  Program to print the Half Pyramid Number Pattern.

#include <stdio.h>
int main()
{
    printf("Enter the row size:");
  int row_size,out,in;
  scanf("%d",&row_size);
  for(out=1;out<=row_size;out++)
{
  for(in=1;in<=out;in++)
            {
         printf("%d",in);
    }
    printf("\n");
}
}

Input/Output:

Enter the row size:5
1
12
123
1234
12345

Write a C++  Program to print the Half Pyramid Number Pattern.

Program in C++
  
Here is the source code of the C++ Program to print the Half Pyramid Number Pattern.

#include <iostream>
using namespace std;
int main()
{
  cout<<"Enter the row size:";
  int row_size,in,out;
  cin>>row_size;
for(out=1;out<=row_size;out++)
{
    for(in=1;in<=out;in++)
            {
         cout<<in;
    }
    cout<<"\n";
}
}

Input/Output:

Enter the row size:6
1
12
123
1234
12345
123456

Write a Java Program to print the Half Pyramid Number Pattern.

Program in Java
  
Here is the source code of the Java Program to print the Half Pyramid Number Pattern.

import java.util.Scanner;
public class P28 {

public static void main(String[] args) {
Scanner cs=new Scanner(System.in);
        System.out.println("Enter the row size:");

        int row_size,out,in;
        row_size=cs.nextInt();
 
        for(out=1;out<=row_size;out++)
{
    
    for(in=1;in<=out;in++)
    {
        System.out.print(in);
    }
    System.out.println();
  }
     cs.close();

}
}

Input/Output:

Enter the row size:
4
1
12
123
1234

Write a Python Program to print the Half Pyramid Number Pattern.

Program in Python
  
Here is the source code of the Python Program to print the Half Pyramid Number Pattern.

row_size=int(input("Enter the row size:"))
for out in range(row_size+1):
    for i in range(1,out+1):
        print(i,end="")
    print("\r")

Input/Output:

Enter the row size:5
1
12
123
1234
12345