Derive Complexity function, Big Oh (0)notation and Running time

=Question No 3:Here the number of rows can be assumed as 10, 00000 #include 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(" "); } return 0; }