Question

Write
a
program in c++ to display
the
following
pattern
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

​

Answer 1

C++ program

//Program to display the pattern

#include<iostream.h>

#include<conio.h>

void main()

{

clrscr();

cout<<"1"<<endl;

cout<<"1 2"<<endl;

cout<<"1 2 3"<<endl;

cout<<"1 2 3 4"<<endl;

cout<<"1 2 3 4 5"<<endl;

}

hope this helps you.

Answer 2

Pattern program in c++

Output:

1  

1 2  

1 2 3  

1 2 3 4  

1 2 3 4 5  

Explanation:

The program to the given question as follows:

Program:

#include <iostream> //defining header file.

using namespace std;

int main() //defining main method

{

     int i, j,num; //defining integer variable

       for(i=0; i<5; i++) // outer loop for column

       {

           num=1;

           for(j=0; j<=i; j++) // inner loop for rows

           {

              cout<<num; //print value

              num++; //increment value by 1

           }

           cout<<endl; //use endl for new line

       }

   return 0;

}

Explanation of the above program as follows:

• In the above C++ language code firstly the header file is included, then defining the main method, inside the main method three integer variable "i,j, and num" is defined.
• In the next step, two for loop is declared, The first loop uses the variable "i", that starts from 0 and ends when, it is less than 5, these loop print columns values.
• Inside a loop, another for loop is defined, which uses variable j, which starts from 0 and ends when the value of j is less than equal to "i", this loop prints rows values.
• End of the inner loop the "endl" is used, which prints value in new line.  

Learn more:

• What are patterns:  https://brainly.in/question/11676412
• Pattern program: https://brainly.in/question/682203