我的函数应该使用什么返回类型来打印斐波那契数？

#include <iostream>

void printFibonacci(int n) {
    int first = 0;
    int second = 1;
    int next;

    for (int i = 0; i < n; i++) {
        std::cout << first << " ";

        next = first + second;
        first = second;
        second = next;
    }
}

int main() {
    int num = 10; // 以打印10个斐波那契数为例
    printFibonacci(num);

    return 0;
}

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