binary_search.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Binary Search\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 69,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "False\n",
      "True\n"
     ]
    }
   ],
   "source": [
    "def binary_search(item_list,item):\n",
    "\tfirst = 0\n",
    "\tlast = len(item_list)-1\n",
    "\tfound = False\n",
    "\twhile( first<=last and not found):\n",
    "\t\tmid = (first + last)//2\n",
    "\t\tif item_list[mid] == item :\n",
    "\t\t\tfound = True\n",
    "\t\telse:\n",
    "\t\t\tif item < item_list[mid]:\n",
    "\t\t\t\tlast = mid - 1\n",
    "\t\t\telse:\n",
    "\t\t\t\tfirst = mid + 1\t\n",
    "\treturn found\n",
    "\t\n",
    "print(binary_search([1,2,3,5,8], 6))\n",
    "print(binary_search([1,2,3,5,8], 5))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Given a binary array, find the maximum number of consecutive 1s in this array."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "3\n"
     ]
    }
   ],
   "source": [
    "def max_consecutive(nums):\n",
    "        a=\"\".join(list(map(str,nums)))\n",
    "        print(a)\n",
    "        b=a.split(\"0\")\n",
    "        width=list(map(len,b))\n",
    "        return max(width)\n",
    "        #return max(map(len,(\"\".join(map(str,nums)).split('0'))))\n",
    "nums= [1,1,0,1,1,1]\n",
    "res=max_consecutive(nums)\n",
    "print(res)        "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
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   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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