5
44
333
2222
11111
/**
* 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 spaces
for(j=1; j<=N-i; j++)
{
printf(" ");
}
// Logic to print numbers
for(j=1; j<=i; j++)
{
printf("%d", (N - i + 1));
}
printf("\n");
}
return 0;
}
----5
---44
--333
-2222
11111
5 44 333 2222 11111
Now once you are done with the previous number pattern, doing this wouldn't be much trouble. As it only needs to add trialing spaces before the number gets printed. Now if you hover mouse to the pattern you can actually count the spaces per row and can define a logic to print spaces. Actually, each row contains N - spaces (where N is the total number of rows to be printed and i is the current row number). Hence, the descriptive logic of printing space is:
Let's implement this the code.
First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.