Drawing Pyramid Patterns in C Program

Introduction

The C programming language is a procedural programming language. Between 1969 and 1973, Dennis Ritchie worked on the project. It was created primarily as a system programming language for developing operating systems.

In this tutorial we are going to learn to draw or print pyramids and patterns using C programming language.

In order to understand the code given below you’ve got to have prior knowledge and or understanding of the following topics:

• C for Loop
• C if…..else Statements
• C while Loop
• C break and continue

If you have a sound knowledge and understanding of what the functions of the concepts are then there will be no difficulty in understanding the given codes for patterns and pyramids in c programming language. With all that said lets get coding!

Half Pyramid made of *

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {
   int i, j, rows;
   printf("Enter the number of rows: ");
   scanf("%d", &rows);
   for (i = 1; i <= rows; ++i) {
      for (j = 1; j <= i; ++j) {
         printf("* ");
      }
      printf("\n");
   }
   return 0;
}

Output for Half Pyramid made of *

Half Pyramid made of numbers

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {
   int i, j, rows;
   printf("Enter the number of rows: ");
   scanf("%d", &rows);
   for (i = 1; i <= rows; ++i) {
      for (j = 1; j <= i; ++j) {
         printf("%d ", j);
      }
      printf("\n");
   }
   return 0;
}

Output for Half Pyramid made of numbers

Half Pyramid made of Alphabets

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {
   int i, j;
   char input, alphabet = 'a';  // for capital characters use alphabet = 'A'
   printf("Enter an lowercase character you want to print in the last row: ");
   scanf("%c", &input);
   for (i = 1; i <= (input - 'a' + 1); ++i) {
      for (j = 1; j <= i; ++j) {
         printf("%c ", alphabet);
      }
      ++alphabet;
      printf("\n");
   }
   return 0;
}

Output for Half Pyramid made of Alphabets

Inverted Half Pyramid of *

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {
   int i, j, rows;
   printf("Enter the number of rows: ");
   scanf("%d", &rows);
   for (i = rows; i >= 1; --i) {
      for (j = 1; j <= i; ++j) {
         printf("* ");
      }
      printf("\n");
   }
   return 0;
}

Output for Inverted Half Pyramid of *

Inverted Half Pyramid of numbers

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {
   int i, j, rows;
   printf("Enter the number of rows: ");
   scanf("%d", &rows);
   for (i = rows; i >= 1; --i) {
      for (j = 1; j <= i; ++j) {
         printf("%d ", j);
      }
      printf("\n");
   }
   return 0;
}

Output for Inverted Half Pyramid of numbers

Inverted Half Pyramid made of Alphabets

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main()
{
  int i,j,a;
  char c='a';
  printf("Enter the number of rows: ");
  scanf("%d", &a);

  for(i=a;i>0;i--)
  {
    for(j=i;j>=1;j--)
    {
      printf("%c",c);
    }
    c++;
    printf("\n");
  }
  return 0;
}

Output for Inverted Half Pyramid made of Alphabets

Full Pyramid of *

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {
   int i, space, rows, k = 0;
   printf("Enter the number of rows: ");
   scanf("%d", &rows);
   for (i = 1; i <= rows; ++i, k = 0) {
      for (space = 1; space <= rows - i; ++space) {
         printf("  ");
      }
      while (k != 2 * i - 1) {
         printf("* ");
         ++k;
      }
      printf("\n");
   }
   return 0;
}

Output for Full Pyramid of *

Full Pyramid made of numbers

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {
   int i, space, rows, k = 0, count = 0, count1 = 0;
   printf("Enter the number of rows: ");
   scanf("%d", &rows);
   for (i = 1; i <= rows; ++i) {
      for (space = 1; space <= rows - i; ++space) {
         printf("  ");
         ++count;
      }
      while (k != 2 * i - 1) {
         if (count <= rows - 1) {
            printf("%d ", i + k);
            ++count;
         } else {
            ++count1;
            printf("%d ", (i + k - 2 * count1));
         }
         ++k;
      }
      count1 = count = k = 0;
      printf("\n");
   }
   return 0;
}

Output for Full Pyramid made of numbers

Full Pyramid made of Alphabets

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

void main() 
  {
   int i, j;
   char alph = 'a';
   int n,blk;
   int ctr = 1;
 
   printf("Enter the number of Letters (less than 26) in the Pyramid : ");
   scanf("%d", &n);
 
   for (i = 1; i <= n; i++) 
	{
	for(blk=1;blk<=n-i;blk++)  
        
	printf("  ");
      for (j = 0; j <= (ctr / 2); j++) {
         printf("%c ", alph++);
      }
 
      alph = alph - 2;
 
      for (j = 0; j < (ctr / 2); j++) {
         printf("%c ", alph--);
      }
      ctr = ctr + 2;
      alph = 'a';
      printf("\n");
   }
  }

Output for Full Pyramid made of Alphabets

Inverted Full Pyramid made of *

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {
   int rows, i, j, space;
   printf("Enter the number of rows: ");
   scanf("%d", &rows);
   for (i = rows; i >= 1; --i) {
      for (space = 0; space < rows - i; ++space)
         printf("  ");
      for (j = i; j <= 2 * i - 1; ++j)
         printf("* ");
      for (j = 0; j < i - 1; ++j)
         printf("* ");
      printf("\n");
   }
   return 0;
}

Output for Inverted Full Pyramid made of *

Inverted Full Pyramid made of numbers

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main()
{
    int i,j,rows,space=0;
printf("Enter the number of rows: ");
scanf("%d",&rows);
    for(i=rows; i>=1; i--){  
            
        for(j=1; j<=space; j++)
        printf(" ");
         for(j=1; j<=i; j++)
        printf("%d",j);
         for(j=i-1; j>=1; j--)
        printf("%d",j);
     printf("\n");
    space++;
    }
  getch();
    return 0;
}

Output for Inverted Full Pyramid made of numbers

Inverted Full Pyramid made of Alphabets

#include<stdio.h>
#include<stdlib.h>
#include<conio.h>

int main()
{
  printf("Enter the number of row (upto 26): ");
  int row;
  scanf("%d",&row);
  int np=row*2-1,in,out,p;
        for(out=row-1;out>=0;out--)
	    {
	     for(in=row-1;in>out;in--)
	      printf(" ");
	     for(p=0;p<np;p++)
           printf("%c",(out+65));
       np-=2;
       printf("\n");
       }
}

Output for Inverted Full Pyramid made of Alphabets