C Program To Print Diamond Pattern

Last Updated : 10 Dec, 2024

The Diamond Pattern is a symmetrical shape where the number of characters increases up to the centre and then decreases forming a diamond-like structure. It can be visualized as a full pyramid and an inverted full pyramid joined by their bases. In this article, we will learn how to print the Diamond Pattern using C program.

Program To Print Diamond Pattern

Star Pattern

#include <stdio.h>  int main() {     int n = 5;      // First outer loop to iterator through each row     for (int i = 0; i < 2 * n - 1; i++) {          // Assigning values to the comparator according to         // the row number         int comp;         if (i < n) comp = 2 * (n - i) - 1;         else comp = 2 * (i - n + 1) + 1;          // First inner loop to print leading whitespaces         for (int j = 0; j < comp; j++)             printf(" ");          // Second inner loop to print stars *         for (int k = 0; k < 2 * n - comp; k++) {             printf("* ");         }         printf("\n");     }     return 0; }

Number Pattern

#include <stdio.h>  int main() {     int n = 5;      // First outer loop to iterator through each row     for (int i = 0; i < 2 * n - 1; i++) {          // Assigning values to the comparator according to         // the row number         int comp;         if (i < n) comp = 2 * (n - i) - 1;         else comp = 2 * (i - n + 1) + 1;          // First inner loop to print leading whitespaces         for (int j = 0; j < comp; j++)             printf(" ");          // Second inner loop to print stars *         for (int k = 0; k < 2 * n - comp; k++) {             printf("%d ", k + 1);         }         printf("\n");     }     return 0; }

Alphabet Pattern

#include <stdio.h>  int main() {     int n = 5;      // First outer loop to iterator through each row     for (int i = 0; i < 2 * n - 1; i++) {          // Assigning values to the comparator according to         // the row number         int comp;         if (i < n) comp = 2 * (n - i) - 1;         else comp = 2 * (i - n + 1) + 1;          // First inner loop to print leading whitespaces         for (int j = 0; j < comp; j++)             printf(" ");          // Second inner loop to print stars *         for (int k = 0; k < 2 * n - comp; k++) {             printf("%c ", k + 'A');         }         printf("\n");     }     return 0; }

Output

        *           |           1           |           A
      * * *         |         1 2 3         |         A B C
    * * * * *       |       1 2 3 4 5       |       A B C D E
  * * * * * * *     |     1 2 3 4 5 6 7     |     A B C D E F G
* * * * * * * * *   |   1 2 3 4 5 6 7 8 9   |   A B C D E F G H I
  * * * * * * *     |     1 2 3 4 5 6 7     |     A B C D E F G
    * * * * *       |       1 2 3 4 5       |       A B C D E
      * * *         |         1 2 3         |         A B C
        *           |           1           |           A

Explanation:

Outer loop iterates through each row from 0 to 2 * n – 2 (as total 2 * n – 1 rows).
comp determines the number of leading spaces based on the current row number.
- For the first half (i < n): comp = 2 * (n – i) – 1.
- For the second half (i >= n): comp = 2 * (i – n + 1) + 1.
First inner loop prints leading white spaces in each row.
Second inner loop iterates through the columns in the row to print * star.
After completing a row, printf(“\n”) moves to the next line.

Program to print Kite Pattern

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C Program To Print Diamond Pattern

Program To Print Diamond Pattern

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