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zhangmingming
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Merge pull request #5 from liupengyuan/master
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‎201611680330.ipynb‎

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{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": 1,
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"metadata": {
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"collapsed": false,
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"deletable": true,
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"editable": true
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},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"please input an int\n",
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"3\n",
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"please input the min\n",
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"1\n",
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"please input the max\n",
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"5\n",
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"均值是 2.6666666666666665\n",
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"平方根 1.632993161855452\n"
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]
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}
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],
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"source": [
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"print('please input an int')\n",
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"n=int(input())\n",
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"print('please input the min')\n",
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"m=int(input())\n",
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"print('please input the max')\n",
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"k=int(input())\n",
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"i=1\n",
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"total=0\n",
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"while i<=n:\n",
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" import random\n",
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" number=random.randint(m,k)\n",
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" total=total+number\n",
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" i=i+1\n",
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"jun=total/n\n",
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"print('均值是',jun)\n",
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"import math\n",
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"print('平方根',math.sqrt(jun))\n",
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" "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"metadata": {
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"collapsed": false,
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"deletable": true,
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"editable": true
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},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"the number you need\n",
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"2\n",
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"the min\n",
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"8\n",
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"the max\n",
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"12\n",
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"6.339850002884624\n",
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"0.6309297535714575\n"
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]
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}
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],
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"source": [
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"#写函数，共n个随机整数，整数范围在m与k之间，求西格玛log(随机整数)及西格玛1/log(随机整数）\n",
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"print('the number you need')\n",
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"n=int(input())\n",
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"print('the min')\n",
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"m=int(input())\n",
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"print('the max')\n",
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"k=int(input())\n",
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"i=1\n",
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"total1=0\n",
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"total2=0\n",
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"while i<=n:\n",
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" import random\n",
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" import math\n",
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" c=random.randint(m,k)\n",
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" c1=math.log2(c)\n",
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" c2=1/c1\n",
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" total1=total1+c1\n",
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" total2=total2+c2\n",
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" i+=1\n",
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"print(total1)\n",
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"print(total2)\n",
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" \n",
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" "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 11,
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"metadata": {
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"collapsed": false,
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"deletable": true,
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"editable": true
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},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"the number you need\n",
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"3\n",
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"1\n",
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"123\n"
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]
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}
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],
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"source": [
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"#写函数，求s=a+aa+aaa+aaaa+aa...a的值，其中a是[1,9]之间的随机整数。例如2+22+222+2222+22222(此时共有5个数相加)，几个数相加由键盘输入。\n",
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"print('the number you need')\n",
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"n=int(input())\n",
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"import random\n",
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"a=random.randint(1,9)\n",
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"print(a)\n",
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"i=1\n",
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"total=0\n",
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"a1=a\n",
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"while i<n:\n",
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" a1=a+a1*10\n",
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" total=total+a1\n",
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" i+=1\n",
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"print(total+a)\n",
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" "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 14,
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"metadata": {
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"collapsed": false,
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"deletable": true,
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"editable": true
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},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"现在让电脑在100~1000见选定一个数作为神秘整数的上界\n",
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"上界是 771\n",
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"请输入想让电脑猜的数字\n",
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"500\n",
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"电脑第 1 次猜的数是 701\n",
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"一共可以猜 9 次\n",
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"已经猜了 1 次\n",
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"抱歉，你猜大了\n",
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"电脑第 2 次猜的数是 26\n",
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"一共可以猜 9 次\n",
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"已经猜了 2 次\n",
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"抱歉，你猜小了\n",
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"电脑第 3 次猜的数是 256\n",
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"一共可以猜 9 次\n",
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"已经猜了 3 次\n",
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"抱歉，你猜小了\n",
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"电脑第 4 次猜的数是 340\n",
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"一共可以猜 9 次\n",
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"已经猜了 4 次\n",
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"抱歉，你猜小了\n",
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"电脑第 5 次猜的数是 511\n",
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"一共可以猜 9 次\n",
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"已经猜了 5 次\n",
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"抱歉，你猜大了\n",
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"电脑第 6 次猜的数是 584\n",
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"一共可以猜 9 次\n",
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"已经猜了 6 次\n",
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"抱歉，你猜大了\n",
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"电脑第 7 次猜的数是 690\n",
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"一共可以猜 9 次\n",
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"已经猜了 7 次\n",
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"抱歉，你猜大了\n",
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"电脑第 8 次猜的数是 44\n",
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"一共可以猜 9 次\n",
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"已经猜了 8 次\n",
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"抱歉，你猜小了\n",
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"电脑第 9 次猜的数是 325\n",
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"一共可以猜 9 次\n",
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"已经猜了 9 次\n",
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"抱歉，你猜小了\n",
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"哈哈哈，电脑你输了\n"
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]
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}
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],
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"source": [
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"#挑战性练习：将猜数游戏改成由用户随便选择一个整数，让计算机来猜测的猜数游戏。\n",
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"def guessgame():\n",
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" import random,math\n",
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" print('现在让电脑在100~1000见选定一个数作为神秘整数的上界')\n",
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" n1 = random.randint(100,1000)\n",
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" print('上界是',n1)\n",
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" print('请输入想让电脑猜的数字')\n",
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" n2 = int(input())\n",
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" maxtimes = math.ceil(math.log(n2, 2))\n",
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" guesstimes = 0\n",
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" \n",
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" while guesstimes < maxtimes:\n",
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" guess = random.randint(0,n1)\n",
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" print('电脑第',guesstimes+1,'次猜的数是',guess)\n",
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" guesstimes += 1\n",
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" print('一共可以猜', maxtimes, '次')\n",
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" print('已经猜了', guesstimes, '次')\n",
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" \n",
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" if guess == n2:\n",
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" win()\n",
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" print('神秘数字是：', guess)\n",
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" print('你比标准次数少', maxtimes-guesstimes, '次')\n",
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" break \n",
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" elif guess>n2:\n",
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" print('抱歉，你猜大了')\n",
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" else:\n",
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" print('抱歉，你猜小了')\n",
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" print('哈哈哈，电脑你输了')\n",
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"guessgame()\n",
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" "
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]
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},
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{
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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