Patterns

#include <stdio.h>

void main() {
    int n, i, j, k;
    printf("Enter the number of lines: \n");
    scanf("%d", &n);
    for (i = 1; i <= n; i++) {

        for (j = 1; j <= n - i; j++)
            printf(" ");
        for (k = 1; k <= (2 * i - 1); k++)
            printf("*");
        printf("\n");
    }

}