This circuit prepares two qubits in superposition, entangles one with a third qubit, measures the third, and conditionally applies an X gate.
```python
from qiskit import QuantumCircuit
# Create circuit with 3 qubits and 1 classical bit
qc = QuantumCircuit(3, 1)
# Prepare qubits 0 and 1 in superposition
qc.h(0)
qc.h(1)
# Entangle qubit 0 with qubit 2
qc.cx(0, 2)
# Measure qubit 2
qc.measure(2, 0)
# Apply X gate to qubit 1 conditioned on measurement result
qc.x(1).c_if(0, 1)
```'Failed to run program: \'409 Client Error: Conflict for url: https://api.quantum.ibm.com/runtime/jobs. {"errors":[{"message":"You have reached the limit of 3 pending jobs. Please wait for a job to complete or cancel one before submitting anything new.","code":3458,"solution":"Wait until some previous jobs were finished. You can cancel pending jobs to run new jobs.","more_info":"https://docs.quantum-computing.ibm.com/errors"}]}\''