C Programs To Print Triangle, Pyramid, Pascal's Triangle, Floyd's Triangle and So On (2024)

Here is a list of programs you will find in this page.

Example 1: Half Pyramid of *

** ** * ** * * ** * * * *

C Program

#include <stdio.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;}

Example 2: Half Pyramid of Numbers

11 21 2 31 2 3 41 2 3 4 5

C Program

#include <stdio.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;}

Example 3: Half Pyramid of Alphabets

AB BC C CD D D DE E E E E

C Program

#include <stdio.h>int main() { int i, j; char input, alphabet = 'A'; printf("Enter an uppercase 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;}

Example 4: Inverted half pyramid of *

* * * * ** * * ** * * * **

C Program

#include <stdio.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;}

Example 5: Inverted half pyramid of numbers

1 2 3 4 51 2 3 4 1 2 31 21

C Program

#include <stdio.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;}

Example 6: Full Pyramid of *

 * * * * * * * * * * * * * * * ** * * * * * * * *

C Program

#include <stdio.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;}

Example 7: Full Pyramid of Numbers

 1 2 3 2 3 4 5 4 3 4 5 6 7 6 5 45 6 7 8 9 8 7 6 5

C Program

#include <stdio.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;}

Example 8: Inverted full pyramid of *

* * * * * * * * * * * * * * * * * * * * * * * * *

C Program

#include <stdio.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;}

Example 9: Pascal's Triangle

 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1

C Program

#include <stdio.h>int main() { int rows, coef = 1, space, i, j; printf("Enter the number of rows: "); scanf("%d", &rows); for (i = 0; i < rows; i++) { for (space = 1; space <= rows - i; space++) printf(" "); for (j = 0; j <= i; j++) { if (j == 0 || i == 0) coef = 1; else coef = coef * (i - j + 1) / j; printf("%4d", coef); } printf("\n"); } return 0;}

Example 10: Floyd's Triangle.

12 34 5 67 8 9 10

C Program

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