*****
****
***
**
*
/**
* C program to print reverse mirrored right triangle star pattern
* atnyla.com
*/
#include <stdio.h>
int main()
{
int i, j, rows;
/* Input rows from user */
printf("Enter number of rows: ");
scanf("%d", &rows);
/* Iterate through rows */
for(i=1; i<=rows; i++)
{
/* Print leading spaces */
for(j=1; j<i; j++)
{
printf(" ");
}
/* Iterate through columns to print star */
for(j=i; j<=rows; j++)
{
printf("*");
}
/* Move to next line */
printf("\n");
}
return 0;
}
Enter number of rows: 5
****
***
**
*
Basic C programming, For loop, Nested loop
Must know - Program to print inverted right triangle star pattern.
*****
****
***
**
*
The above pattern is similar to inverted right triangle star pattern with leading spaces. The pattern consist of N rows and each row contains N - i + 1 stars. In addition to stars each row contains some leading spaces. For each row there are total i - 1 spaces (where i is current row number). Point your mouse cursor over the above pattern to count total spaces per row.
Step by step descriptive logic to print reversed mirrored right triangle star pattern.
for(i=1; i <= rows; i++). i - 1 . The loop structure should look like for( j=1; j < i; j++ ) . Inside this loop print single space.
Note: j < i is equivalent to j <= i - 1.
for( j=i; j <= rows; j++). Inside the loop print star./* * C program to print right triangle star pattern series * atnyla.com */ #include int main() { int i, j, n; /* Input number of rows from user */ printf("Enter value of n: "); scanf("%d", &n); for(i=1; i<=n; i++) { /* Print i number of stars */ for(j=1; j<=n; j++) { if(i<=j) printf("*"); else printf(" "); } /* Move to next line */ printf("\n"); } return 0; }
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.