braingym/projecteuler/1/.ipynb_checkpoints/nix-checkpoint.ipynb

{
 "cells": [
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   "cell_type": "code",
   "execution_count": 1,
   "id": "bff727d0-70bf-42cf-a12c-ee5823037315",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      ":l <nixpkgs>\n",
      "Added 17051 variables.\u001b[0m\n",
      "\n"
     ]
    }
   ],
   "source": [
    ":l <nixpkgs>"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "1de5854d-a1dd-4c88-bad5-571c0e4dab8e",
   "metadata": {},
   "source": [
    "# fake rem because nix doesn't support this operation"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "8773113c-494f-45d8-a8c1-4f1ac8b60266",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "rem = a: b:\n",
      "    let\n",
      "        x = builtins.div a b;\n",
      "        cx = builtins.ceil x;\n",
      "    in x == cx\n",
      "\n"
     ]
    }
   ],
   "source": [
    "rem = a: b:\n",
    "    let\n",
    "        x = builtins.div a b;\n",
    "        cx = builtins.ceil x;\n",
    "    in x == cx"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "25c08a9f-b2ef-451a-9791-f0fd75cf6f00",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "predicate = x: (rem x 3.) || (rem x 5.)\n",
      "\n"
     ]
    }
   ],
   "source": [
    "predicate = x: (rem x 3.) || (rem x 5.)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "754560b4-01c3-401c-a9ab-14fe56a9a80c",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "input = lib.range 1 999\n",
      "\n"
     ]
    }
   ],
   "source": [
    "input = lib.range 1 999"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "1bbc464a-bedc-4742-ae1d-d06039df53f5",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "filtered = lib.filter predicate input\n",
      "\n"
     ]
    }
   ],
   "source": [
    "filtered = lib.filter predicate input"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "5a08e129-b2fe-43b5-a22f-bb6a0e69adb6",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "sum = list: lib.foldr builtins.add 0 list\n",
      "\n"
     ]
    }
   ],
   "source": [
    "sum = list: lib.foldr builtins.add 0 list"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "1dcaf52d-5526-4755-9454-d79238b9454f",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "sum filtered\n",
      "\u001b[36;1m233168\u001b[0m\n",
      "\n"
     ]
    }
   ],
   "source": [
    "sum filtered"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Nix - nix",
   "language": "Nix",
   "name": "inix_nix"
  },
  "language_info": {
   "file_extension": ".nix",
   "mimetype": "text/nix",
   "name": "nix"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 5
}