5 54 543 5432 54321
/**
* C program to print number pattern
*/
#include <stdio.h>
int main()
{
int i, j, N;
printf("Enter N: ");
scanf("%d", &N);
for(i=N; i>=1; i--)
{
// Logic to print numbers
for(j=N; j>=i; j--)
{
printf("%d", j);
}
printf("\n");
}
return 0;
}Enter N: 5
5
54
543
5432
54321
5 54 543 5432 54321
Before I get into details about the number pattern I recommend you to have a close eye to the pattern carefully for a minute. The above pattern contains N rows (where N is the total number of rows to be printed). As you can see that the pattern printing is in descending order hence to make things easier we will iterate through the outer loop in descending order. Each row contains exactly i number of columns (where i is the current row number).
Step-by-step description to print the 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.