斐波那契数列中的合数c语言
时间: 2023-11-15 15:59:36 浏览: 201
斐波那契数列中的合数是指在斐波那契数列中,除了1和2以外的所有数。在C语言中,可以通过以下代码求出斐波那契数列中第n个合数:
<<引用>>
def is_prime(num): # 判断一个数是否为素数
if num < 2:
return False
for i in range(2, int(num ** 0.5) + 1):
if num % i == 0:
return False
return True
def fibonacci_composite(n): # 求斐波那契数列中第n个合数
fib_sequence = [1, 1] # 斐波那契数列的前两项
count = 0 # 记录已生成的合数个数
i = 2 # 当前斐波那契数列的索引
while count < n:
fib_number = fib_sequence[i - 1] + fib_sequence[i - 2] # 计算下一个斐波那契数
if not is_prime(fib_number): # 判断是否为合数
count += 1
if count == n: # 找到第n个合数
return fib_number
fib_sequence.append(fib_number)
i += 1
return None
// 读取输入
int n;
scanf("%d", &n);
// 调用函数并输出结果
int result = fibonacci_composite(n);
printf("%d", result);
阅读全文
相关推荐















