In this tutorial, we will write a program to print half hourglass pattern in C. Before that, you may go through the following topic in C.
1. Right half hourglass pattern in C
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | #include <stdio.h> int main() { int i, j, rows; printf("Enter the no. of rows: "); scanf("%d", &rows); for (i = rows - 1; i >= 0; i--) { for (j = i; j >= 0; j--) { printf("* "); } printf("\n"); } for (i = 0; i <= rows - 1; i++) { for (j = i; j >= 0; j--) { printf("* "); } printf("\n"); } return 0; } |
Enter the no. of rows: 5
* * * * *
* * * *
* * *
* *
*
*
* *
* * *
* * * *
* * * * *
2. Left half hourglass pattern in C
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | #include <stdio.h> int main() { int i, j, k, rows; printf("Enter the no. of rows: "); scanf("%d", &rows); printf("Output: \n\n"); //upper half for (i = 1; i <= rows; i++) { for (k = 1; k < i; k++) printf(" "); for (j = i; j <= rows; j++) printf("*"); printf("\n"); } //lower half for (i = rows - 1; i >= 1; i--) { for (k = 1; k < i; k++) printf(" "); for (j = i; j <= rows; j++) printf("*"); printf("\n"); } return 0; } |
Output: