12345 23456 34567 45678 56789
/**
* C program to print number pattern
* www.atnyla.com
*/
#include <stdio.h>
int main()
{
int rows, cols, i, j;
/* Input rows and columns from user
*/
printf("Enter number of rows: ");
scanf("%d", &rows);
printf("Enter number of columns: ");
scanf("%d", &cols);
for(i=1; i<=rows; i++)
{
for(j=i; j < i+cols; j++)
{
printf("%d", j);
}
printf("\n");
}
return 0;
}Enter number of rows: 5
Enter number of columns: 5
12345
23456
34567
45678
56789
Basic C programming, Loop
Before moving on to this pattern it is recommended that you get acquainted with logic to print basic number pattern.
Once you get familiar to the number patterns carefully have an eye on this pattern. If you look carefully you will notice that for each column numbers are started with the row number, lets say the starting number in each row is k. For each column numbers get printed till k + columns (where columns is the total number of columns to be printed per row). Hence, we would apply this logic inside our looping constructs to print the given pattern.
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.
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.