Program to print the given number pattern 54321 5432 543 54 5

Programming Example

Program to print the given number pattern

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💻 Practical Program

📘 Step by Step Learning

Write a C program to print the given number pattern using loop. How to print the given triangular number pattern program using for loop in C programming. Logic to print the given number pattern program using loop in C program.

Program Code

/**
 * C program to print number pattern
 * www.atnyla.com
 */

#include <stdio.h>

int main()
{
    int i, j, N;

    printf("Enter N: ");
    scanf("%d", &N);

    for(i=1; i<=N; i++)
    {
        // Logic to print numbers
        for(j=N; j>=i; j--)
        {
            printf("%d", j);
        }

        printf("\n");
    }

    return 0;
}

Output

Enter N: 5
54321
5432
543
54
5

Explanation

Logic to print the given number pattern

To get the logic of above pattern have a look to the pattern carefully for a couple of minutes. The pattern consists of N rows (where N is the total number of rows to be printed). Each row contains exactly N - i + 1 columns (where i is the current row number).
Step-by-step descriptive logic:

To iterate through rows, run an outer loop from 1 to N.
To print columns, run an inner loop from N to i in decreasing order (where i is the current row number). Inside this loop print the value of j (where j is the current column number).

How to learn from this program

First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.

Practice suggestion

After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.

Program to print the given number pattern
54321 5432 543 54 5