{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "def flipcake(order):\n",
    "    numFlip = 0\n",
    "    switch = order[0]\n",
    "    if \"-\" not in order:\n",
    "        return 0\n",
    "    if \"+\" not in order:\n",
    "        return 1\n",
    "    \n",
    "    if switch == \"-\":\n",
    "        numFlip += 1\n",
    "        \n",
    "    for p in order:\n",
    "        if p != switch:\n",
    "            switch = p\n",
    "            if switch == \"-\":\n",
    "                numFlip += 2\n",
    "    return numFlip\n",
    "    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "f = open(\"B-small-attempt0.in\")\n",
    "answers = []\n",
    "f.readline()\n",
    "count = 1\n",
    "for case in f:\n",
    "    ans = \"Case #\" + str(count) + \": \"\n",
    "    case = case.strip()\n",
    "    ans = ans + str(flipcake(case)) + \"\\n\"\n",
    "    count+=1\n",
    "    answers.append(ans)\n",
    "\n",
    "q = open(\"B-small.out\",'w')\n",
    "for ans in answers:\n",
    "    q.write(ans)\n",
    "q.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "flipcake(\"-\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "flipcake(\"-+\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "2"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "flipcake(\"+-\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "0"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "flipcake(\"+++\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3"
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "flipcake(\"--+-\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3"
      ]
     },
     "execution_count": 12,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "flipcake(\"--+-----\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
 ],
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  "kernelspec": {
   "display_name": "Python 2",
   "language": "python",
   "name": "python2"
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    "name": "ipython",
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   "file_extension": ".py",
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   "pygments_lexer": "ipython2",
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