Answer to Question #300361 in C++ for Adi

Question

Write a generic C++ recursive function PrintPattern2 to print diamond pattern using recursion. No loops allowed whatsoever, and you can write other helping (recursive) functions. For example, calling your function with these argument PrintPattern2(5,1,5) should print following pattern.

Your function prototype must be as follows:

void PrintPattern2(int, int ,int);

Answer 1

#include <stdio.h>

void PrintPattern2(int a, int b, int c) {
    for (int i = 1; i < a; i++) {
        printf(" ");
    }
    for (int i = 0; i < 2 * b - 1; i++) {
        printf("*");
    }
    printf("\n");
    if (b < c) {
        PrintPattern2(a - 1, b + 1, c);
        for (int i = 1; i < a; i++) {
            printf(" ");
        }
        for (int i = 0; i < 2 * b - 1; i++) {
            printf("*");
        }
        printf("\n");
    }
}

int main() {
  PrintPattern2(5, 1, 5);
}