In this tutorial, we will discuss Hollow Pyramid Pattern using nested while loop in C programming language
In this program, we are going to learn about how to display Hollow Pyramid Pattern using nested while loop in C programming language
Here, we display two Hollow pyramid Pattern programs with coding using nested while loop and also program get input from the user using scanf() function in C language
The user can provide numbers as they wish and get the Hollow pyramid pattern according to their input.
Hollow Pyramid triangle star pattern
Program 1
#include <stdio.h> #include <stdlib.h> int main() { int rows; printf("Enter the number of rows to Pyramid: "); scanf("%d",&rows);//get input from user for rows int i,j,k; i=1; while(i<=rows){//parent while loop(outer while) j=i; while(j<rows){ printf(" ");//print initial space j++; } k=1; while(k<2*i){ if(i==rows || (k==1 || k==2*i-1)) printf("*");//print star else printf(" ");//print space k++; } i++; printf("\n");//Move to the next line for print } getch(); return 0; }
When the above code is executed, it produces the following results
Inverted Hollow Pyramid triangle star pattern
Program 2
#include <stdio.h> #include <stdlib.h> int main() { int rows; printf("Enter the number of rows to Pyramid: "); scanf("%d",&rows); int i,j,k; i=rows; while(i>=1){//outer for loop j=rows; while(j>i){while loop print for space printf(" ");//print space j--; } k=1; while(k<2*i){ if(i==rows || (k==1 || k==2*i-1)) printf("*");//print star else printf(" ");//print space k++; } i--; printf("\n");//Move to the next line for print } getch(); return 0; }
When the above code is executed, it produces the following results
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