如何采用地址传递的方式
编写一个递归函数,求斐波那契数列的第N项,并调用此函数求这个数列前N项的和
地址传递与递归如何同时使用
#include <iostream>
using namespace std;
void Fibonacci(long long *x, int n)
{
if (n == 1 || n == 2)
{
*x = 1;
return;
}
long long a, b;
Fibonacci(&a, n - 1);
Fibonacci(&b, n - 2);
*x = a + b;
}
int main()
{
long long a, sum = 0;
int n;
cin >> n;
for (int i = 1; i <= n; i++)
{
a = 0;
Fibonacci(&a, i);
// cout << a << " ";
sum += a;
}
// cout << endl;
cout << sum;
return 0;
}
如下是一个详细代码实现,地址传递和递归同时使用了,望采纳
#include <iostream>
// Function prototype
int fibonacci(int& n);
int main()
{
// 计算第N项
int n = 10; // Assume N = 10 for this example
int NthTerm = fibonacci(n);
// 计算前N项和
int sum = 0;
for (int i = 1; i <= n; i++)
{
sum += fibonacci(i);
}
// 输出结果
std::cout << "The Nth term of the Fibonacci sequence is: " << NthTerm << std::endl;
std::cout << "The sum of the first N terms of the sequence is: " << sum << std::endl;
return 0;
}
// 斐波那契数列函数定义
int fibonacci(int& n)
{
if (n == 0 || n == 1)
{
return n;
}
return fibonacci(n-1) + fibonacci(n-2);
}