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#include <iostream> using namespace std; // Hàm in ra s? h?ng th? k c?a dãy Fibonacci int fibonacci(int k) { if (k <= 0) { cout << "Khong ton tai so hang thu " << k << " trong day Fibonacci."; return -1; } if (k == 1 || k == 2) { return k - 1; } int a = 0; int b = 1; int fib = 0; for (int i = 3; i <= k; ++i) { fib = a + b; a = b; b = fib; } return fib; } int main() { int n; cout << "Nhap vao so nguyen n: "; cin >> n; if (n <= 0) { cout << "Gia tri n khong hop le!"; return 0; } cout << "Day Fibonacci gom " << n << " so hang dau tien: "; for (int i = 1; i <= n; ++i) { cout << fibonacci(i) << " "; } return 0; }
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