C programming: A pyramid with asterisks

C programming: A pyramid with asterisks

Creating a pyramid with asterisks in C involves using loops to generate the correct pattern of spaces and asterisks to form the desired shape. Let's look at how to construct a pyramid with a specified number of levels (or rows).

A pyramid can be created by:

  • Determining the number of spaces needed at the beginning of each row.
  • Determining the number of asterisks for each row.
  • Printing these in the correct order to create the pyramid shape.

Here's a C program that generates a pyramid based on the specified number of levels:

#include <stdio.h> void printPyramid(int levels) { for (int i = 1; i <= levels; i++) { // Print leading spaces to center the asterisks for (int j = 1; j <= (levels - i); j++) { printf(" "); } // Print the asterisks for the current row for (int k = 1; k <= (2 * i - 1); k++) { printf("*"); } // Move to the next line after completing the row printf("\n"); } } int main() { int levels; printf("Enter the number of levels for the pyramid: "); scanf("%d", &levels); if (levels <= 0) { printf("Number of levels must be positive.\n"); return 1; } printPyramid(levels); return 0; }

Explanation

  • User Input for Levels: The program starts by asking the user for the number of levels (or rows) in the pyramid.
  • Loop for Each Level: The outer loop (variable i) represents each level of the pyramid.
  • Leading Spaces: For each row, the inner loop (variable j) prints the appropriate number of leading spaces to center the asterisks. The number of spaces decreases with each level.
  • Printing Asterisks: The next loop (variable k) prints the asterisks for the current row. The pattern for asterisks is (2 * i - 1), which increases with each row.
  • Output the Pyramid: After printing the spaces and asterisks for a row, a newline is printed to move to the next level.

Running the Program

  1. Compile the program using a C compiler (e.g., gcc).
  2. Execute the compiled program.
  3. Input the desired number of levels for the pyramid.
  4. The program will generate and print the pyramid with the specified number of levels.

This C program allows users to create a customizable pyramid with asterisks based on the number of levels specified, demonstrating how loops can be used to create geometric patterns.

Examples

  1. "C program to print a pyramid pattern in C with asterisks"

    • Description: Users may search for a C program that generates a pyramid pattern using asterisks.
    // Example code: #include <stdio.h> int main() { int rows, i, j, space; printf("Enter number of rows: "); scanf("%d", &rows); for (i = 1; i <= rows; ++i) { for (space = 1; space <= rows - i; ++space) printf(" "); for (j = 1; j <= 2 * i - 1; ++j) printf("* "); printf("\n"); } return 0; }

  2. "C program to print a mirrored pyramid pattern with asterisks"

    • Description: Users may seek a C program that prints a mirrored pyramid pattern using asterisks.
    // Example code: #include <stdio.h> int main() { int rows, i, j, space; printf("Enter 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; }

  3. "C program to print a hollow pyramid pattern with asterisks"

    • Description: Users may want a C program to print a hollow pyramid pattern using asterisks.
    // Example code: #include <stdio.h> int main() { int rows, i, j, space; printf("Enter number of rows: "); scanf("%d", &rows); for (i = 1; i <= rows; ++i) { for (space = 1; space <= rows - i; ++space) printf(" "); for (j = 1; j <= 2 * i - 1; ++j) { if (i == rows || j == 1 || j == 2 * i - 1) printf("* "); else printf(" "); } printf("\n"); } return 0; }

  4. "C program to print an inverted pyramid pattern with asterisks"

    • Description: This query suggests users are looking for a C program to print an inverted pyramid pattern using asterisks.
    // Example code: #include <stdio.h> int main() { int rows, i, j; printf("Enter number of rows: "); scanf("%d", &rows); for (i = rows; i >= 1; --i) { for (j = 0; j < rows - i; ++j) printf(" "); for (j = i; j <= 2 * i - 1; ++j) printf("* "); printf("\n"); } return 0; }

  5. "C program to print a hollow inverted pyramid pattern with asterisks"

    • Description: Users may seek a C program to print a hollow inverted pyramid pattern using asterisks.
    // Example code: #include <stdio.h> int main() { int rows, i, j; printf("Enter number of rows: "); scanf("%d", &rows); for (i = rows; i >= 1; --i) { for (j = i; j < rows; ++j) printf(" "); for (j = 1; j <= 2 * i - 1; ++j) { if (i == rows || j == 1 || j == 2 * i - 1) printf("* "); else printf(" "); } printf("\n"); } return 0; }

  6. "C program to print a half pyramid pattern with asterisks"

    • Description: This query suggests users want a C program that prints a half pyramid pattern using asterisks.
    // Example code: #include <stdio.h> int main() { int rows, i, j; printf("Enter number of rows: "); scanf("%d", &rows); for (i = 1; i <= rows; ++i) { for (j = 1; j <= i; ++j) printf("* "); printf("\n"); } return 0; }

  7. "C program to print a mirrored half pyramid pattern with asterisks"

    • Description: Users may search for a C program that prints a mirrored half pyramid pattern using asterisks.
    // Example code: #include <stdio.h> int main() { int rows, i, j; printf("Enter number of rows: "); scanf("%d", &rows); for (i = rows; i >= 1; --i) { for (j = 1; j <= i; ++j) printf("* "); printf("\n"); } return 0; }

  8. "C program to print a half pyramid pattern using numbers"

    • Description: This query suggests users want a C program that prints a half pyramid pattern using numbers instead of asterisks.
    // Example code: #include <stdio.h> int main() { int rows, i, j; printf("Enter 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; }

  9. "C program to print a hollow pyramid pattern with numbers"

    • Description: Users may seek a C program that prints a hollow pyramid pattern using numbers instead of asterisks.
    // Example code: #include <stdio.h> int main() { int rows, i, j; printf("Enter number of rows: "); scanf("%d", &rows); for (i = 1; i <= rows; ++i) { for (j = 1; j <= rows - i; ++j) printf(" "); for (j = 1; j <= 2 * i - 1; ++j) { if (i == rows || j == 1 || j == 2 * i - 1) printf("%d ", j); else printf(" "); } printf("\n"); } return 0; }

  10. "C program to print a mirrored pyramid pattern with numbers"

    • Description: This query suggests users want a C program that prints a mirrored pyramid pattern using numbers instead of asterisks.
    // Example code: #include <stdio.h> int main() { int rows, i, j; printf("Enter number of rows: "); scanf("%d", &rows); for (i = rows; i >= 1; --i) { for (j = 1; j <= rows - i; ++j) printf(" "); for (j = 1; j <= 2 * i - 1; ++j) printf("%d ", j); printf("\n"); } return 0; }

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