Print fabionci with fork in C

#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <unistd.h>

int fibonacci(int n);

int main() {
    int n;
    printf("Enter the number of terms for Fibonacci series: ");
    scanf("%d", &n);

    pid_t pid = fork();

    if (pid == -1) {
        fprintf(stderr, "Fork failed\n");
        return 1;
    } else if (pid == 0) {
        // Child process
        printf("Child process is calculating Fibonacci series.\n");
        for (int i = 0; i < n; ++i) {
            printf("%d ", fibonacci(i));
        }
        printf("\n");
    } else {
        // Parent process
        wait(NULL);
        printf("Parent process is waiting for the child process to complete.\n");
    }

    return 0;
}

int fibonacci(int n) {
    if (n <= 1)
        return n;
    return fibonacci(n - 1) + fibonacci(n - 2);
}