Here is a C program to print a mirrored right angles triangle pattern of star character of n rows using for loop. For a mirrored right triangle star pattern of 7 rows. Program's output should be:
Required Knowledge
- Take the number of rows(N) of mirrored right triangle as input from user using scanf function.
- In any row, the sum of spaces and stars are equal to N. Number of stars increases by one and number of spaces before stars decreases by 1 in consecutive rows.
- In any row R, we will first print N-R-1 space characters then R+1 star characters.
Here is the matrix representation of the inverted triangle star pattern. The row numbers are represented by i whereas column numbers are represented by j.
C program to print mirrored right triangle star pattern
#include <stdio.h>
int main() {
int i, j, rows;
printf("Enter the number of rows\n");
scanf("%d", &rows);
for(i = 0; i < rows; i++){
/* for j th row, first print rows-r spaces then stars */
for(j = 0; j < rows; j++){
if(j < rows-i-1){
printf(" ");
} else {
printf("*");
}
}
/* move to next row */
printf("\n");
}
return 0;
}
Output
Enter the number of rows
6
*
**
***
****
*****
******
Here is the C program to print inverted right triangle star pattern using one for loop
#includeOutputint main(){ char *str="*******************"; int i,j, rows; printf("Enter the number of rows\n"); scanf("%d", &rows); for(i = 0; i < rows; i++){ printf("%*.*s\n", rows, i+1, str); } return 0; }
Enter the number of rows
5
*
**
***
****
*****
Tips for Writing the Mirrored Right Triangle Star Pattern Printing Program in C
- Using Nested Loops : To print the pattern, you will need to use nested loops. The outer loop controls the number of rows, while the inner loop controls the number of stars in each row. Ensure that your loops are properly structured to achieve the desired pattern.
- Setting the Size : Use variables to define the size of the mirrored right triangle. This allows you to easily adjust the size of the pattern without modifying the entire code.
- Understanding the Pattern : Before diving into the code, take a moment to understand the pattern. Visualize how the stars are arranged in each row and column to create the mirrored right triangle shape.
- Printing Stars and Spaces : Use conditional statements within your nested loops to determine when to print stars and when to print spaces. Pay close attention to the pattern's structure to ensure the correct placement of stars and spaces.
- Debugging and Refining : If you encounter any errors or unexpected behavior, use debugging techniques to identify and resolve the issues. Refine your code iteratively until you achieve the desired mirrored right triangle pattern.
- Testing Incrementally : As you write your code, test it incrementally. Start with a small mirrored right triangle and gradually increase the size to ensure that the pattern is being printed correctly at each step.
- Experimenting with Variations : Once you have successfully implemented the basic mirrored right triangle pattern, experiment with variations. Try changing the size, orientation, or alignment of the triangle to create different visual effects.
Conclusion
Finally, the Mirrored Right Triangle Star Pattern Printing Program in C is an excellent exercise for beginners to strengthen their problem-solving abilities, reinforce their comprehension of looping ideas, improve their debugging skills, and foster programming creativity. This application is essential for novices to grasp core programming ideas and gain confidence in their programming talents. Beginners can write this program efficiently by following the instructions provided and laying a firm basis for their programming adventure.
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