Program to print pyramid pattern in C

Program Description

A pyramid is a polyhedron formed by connecting a polygonal base and a point, called the apex. Each base edge and apex form a triangle, called a lateral face. It is a conic solid with polygonal base. A pyramid with an n-sided base has n + 1 vertices, n + 1 faces, and 2n edges. All pyramids are self-dual.

Algorithm

Accept the number of rows from the user to form pyramid shape
Iterate the loop till the number of rows specified by the user:
Display 1 star in the first row
Increase the number of stars based on the number of rows.

Example

/*Program to print Pyramid Pattern*/
#include<stdio.h>
int main() {
   int r, s, rows=0;
   int t=0;
   clrscr();
   printf("Enter number of rows to print the pyramid: ");
   scanf("%d", &rows);
   printf("\n");
   printf("The Pyramid Pattern for the number of rows are:");
   printf("\n\n");
   for(r=1;r<=rows;++r,t=0) {
      for(s=1; s<=rows-r; ++s){
         printf(" ");
      }
      while (t!=2*r-1) {
         printf("* ");
         ++t;
      }
      printf("\n");
   }
   getch();
   return 0;
}

Output