C Program – Print Inverted Pyramid - Upside Down Triangle

C Patterns

Print Inverted Pyramid

In this pattern, the largest row of stars appears at the top and each subsequent row contains two fewer stars, creating an upside-down pyramid. Leading spaces increase with each row to maintain centering.

#include <stdio.h>
int main() {
    int rows;
    printf("Enter number of rows: ");
    scanf("%d", &rows);
    for (int i = rows; i >= 1; i--) {
        // Print leading spaces
        for (int j = 0; j < rows - i; j++) {
            printf(" ");
        }
        // Print stars for the current row
        for (int k = 1; k <= 2 * i - 1; k++) {
            printf("*");
        }
        printf("\n");
    }
    return 0;
}
Enter number of rows: 4
*******
  *****
  ***
    *

The pattern is generated by starting with the maximum number of stars (2×rows−1) in the first row, then decreasing the number of stars by two each row. Leading spaces increase accordingly to center the inverted triangle.


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