from cuquantum import CircuitToStateVector
import numpy as np

class QuantumOptionPricing:
    """
    Quantum option pricing using amplitude estimation
    """
    def __init__(self, n_qubits):
        self.n_qubits = n_qubits
        self.circuit = CircuitToStateVector()
    
    def european_call_price(self, S0, K, r, T, sigma):
        """
        Price European call options using quantum amplitude estimation
        
        Parameters:
        -----------
        S0 : float
            Initial stock price
        K : float
            Strike price
        r : float
            Risk-free rate
        T : float
            Time to maturity
        sigma : float
            Volatility
        """
        # Implementation using cuquantum
        pass