Sep 8, 2020

C program to print half left side of pyramid number pattern

Ex: Write a C program to print half left side of pyramid number pattern. How to write a C program to print half left side of pyramid number pattern. C program to print half left side of pyramid number pattern.

Input from user:

Enter the number: 5

Expected output:

1

12

123

1234

12345

Step by step logic of the given program:

This pattern is same as previous exercises star pattern:

*

**

***

****

*****

Difference is:

In this pattern we only need to replace the * with value of .

1. Accept input number from user declare variable say no.

2. Run outer loop from 1 to no which shows the number of rows in pattern:

for(i=1;i<=no;i++)

3. Run first inner loop from i to no-1 to print spaces:

for(j=i;j<no;j++)

{

printf(" ");

}

4. Run second inner loop from 1 to i and print value of k:

for(k=1;k<=i;k++)

{

printf("%d",k);

}

5. For next row print \n.

Program to print half left side of pyramid number pattern:

#include<stdio.h>

void main()

{

int no,i,j,k;

printf("Enter the number:\n");

scanf("%d",&no);

/*Run loops*/

for(i=1;i<=no;i++)

{

for(j=i;j<no;j++)

{

/*Print spaces*/

printf(" ");

}

for(k=1;k<=i;k++)

{

/*Print value of k*/

printf("%d",k);

}

/*For new row*/ printf("\n");

}

}

Above program shows the following output: