In this article, I will show you, How to write a C program to print hollow mirrored inverted right triangle star pattern. How to print hollow mirrored reversed right triangle star pattern of n rows using for loop in C programming. Here, one thing is important to know that the rows of the triangle.
Logic to write C program to print hollow mirrored inverted right triangle star pattern:
It is very easy to print hollow mirrored reversed right triangle star pattern in C, below I have mentioned a few steps to print hollow reversed mirrored triangle pattern in C:
- Enter the row value for the right triangle.
- Here I have used three loops one is the outer loop to change the line and two inner loops to print star and space.
- The outer loop iterate row times and print a newline after completing the inner loop.
- If you will look at the design carefully, then star available on the first or last column or first and the last row.
- To print the space inner loop iterate 1 to x times.
- Second inner loop print star for first or last column or first and last row otherwise print space.
See the, C program to print hollow mirrored right triangle star pattern:
#include <stdio.h> int main() { int x = 0,y = 0; unsigned int rows = 0; printf("Enter the number of rows = "); scanf("%u",&rows); for(x=1; x<=rows; ++x) { // Print spaces for(y=1; y<x; ++y) { printf(" "); } for(y=x; y<=rows; ++y) { if((x==1) || (y==x) || (y==rows)) { //Print star printf("*"); } else { //Print space printf(" "); } } // Print new line printf("\n"); } return 0; }
Output:
Code Analysis:
It asks the user to enter the row for the triangle.
printf("Enter the number of rows = "); scanf("%u",&rows);
Each row contains (x-1) space. So to print the space inner loop iterate 1 to x times.
// Print spaces for(y=1; y<x; ++y) { printf(" "); }
Second inner loop print star for first or last column or last row otherwise print space.
for(y=x; y<=rows; ++y) { if((x==1) || (y==x) || (y==rows)) { //Print star printf("*"); } else { //Print space printf(" "); } }
The outer loop print the newline after each iteration of the inner loops.
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