Program to print the given number pattern 12345 2345 345 45 5

Programming Example

Program to print the given number pattern

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📘 Step by Step Learning

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

Program Code

/**
 * C program to print number pattern
 */

#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=i; j<=N; j++)
        {
            printf("%d", j);
        }

        printf("\n");
    }
    return 0;
}

Output

Enter N: 5
12345
2345
345
45
5

Explanation

Logic to print the given number pattern

Before we get into this pattern I recommend you to look to the given pattern carefully for a minute. The pattern contains N rows (where N is the total rows to be printed). Each row contains exactly N - i + 1columns (where i is the current row number).
Step-by-step descriptive logic:

To iterate though rows, run an outer loop from 1 to N.
To print columns, run an inner loop from i to N. 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
12345 2345 345 45 5