import cirq

# Pick a qubit.
qubit = cirq.GridQubit(0, 0)

# Create a circuit
circuit = cirq.Circuit.from_ops(
    cirq.X(qubit)**0.5,  # Square root of NOT.
    cirq.measure(qubit, key='m')  # Measurement.
)
print("Circuit:")
print(circuit)

# Simulate the circuit several times.
simulator = cirq.Simulator()
result = simulator.run(circuit, repetitions=20)
print("Results:")
print(result)


# ----- Tutorial
import cirq
import numpy as np
import matplotlib

# Print Google's 72-qbit Bristlecone
print(cirq.google.Bristlecone)

# Use named Qubits
a = cirq.NamedQubit("a")
b = cirq.NamedQubit("b")
c = cirq.NamedQubit("c")
ops = [cirq.H(a), cirq.H(b), cirq.CNOT(b, c), cirq.H(b)]
circuit = cirq.Circuit.from_ops(ops)
print(circuit)

for i, moment in enumerate(circuit):
    print('Moment {}: {}'.format(i, moment))