{
 "cells": [
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   "source": [
    "# Working with big circuits"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Qlasskit is capable of producing large circuit without any issue. The only thing that you have to do, is to use the `fastOptimizer`, since running CSE is too slow on large expressions lists.\n",
    "\n",
    "In the next example we are going to create a quantum circuit with 64 `Qint8` in input, and one `Qint8` in output, resulting on a circuit of ~21984 qubits and ~1044 gates in around 5 seconds."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "from qlasskit import Qint8, Qlist, boolopt, qlassfa\n",
    "\n",
    "\n",
    "@qlassfa(bool_optimizer=boolopt.fastOptimizer)\n",
    "def test(a_list: Qlist[Qint8, 64]) -> Qint8:\n",
    "    h_val = Qint8(0)\n",
    "    for c in a_list:\n",
    "        h_val = h_val + c\n",
    "    return h_val"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "QCircuit<test>(21831 gates, 1036 qubits)\n"
     ]
    }
   ],
   "source": [
    "print(test.circuit())"
   ]
  }
 ],
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