斐波那契数列非递归 c

斐波那契数列非递归 C 代码如下：

#include <stdio.h>

int fibonacci(int n) {
    if (n == 0 || n == 1) {
        return n;
    }
    int a = 0, b = 1, c;
    for (int i = 2; i <= n; i++) {
        c = a + b;        a = b;
        b = c;
    }
    return b;
}

int main() {
    int n = 10;
    printf("斐波那契数列第%d项为%d\n", n, fibonacci(n));
    return 0;
}