week1/Day1-HandsOn2.ipynb

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    "\n",
    "<img src=\"../assets/logo3.png\" width=\"200\" height=\"200\" >\n",
    "<div style=\"display:block\"><br><br>\n",
    "    <div style=\"display:block\" align=left display=block> \n",
    "        <font size=5><b>Day 1 Hands-On 2 - Python Basics 2</b></font><br>\n",
    "        <hr/>\n",
    "</div>\n"
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    "#### 1- Given the list of all 2-digit numbers, calculate the mean and standard deviation of all numbers in this list."
   ]
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    "'''Enter your code here'''"
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    "#### 2- write a code to print all possible permutations of length n.\n",
    "\n",
    "For example, given n=3, we have 6 permutations: [1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]"
   ]
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    "'''Enter your code here'''"
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   "source": [
    "#### 3- given a long text, count the number of occurences of all words in the text in a python dictionary."
   ]
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    "'''Enter your code here'''"
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    "#### 4- A directed graph is given with dictionary d. Count how many separate cycles there are in this graph\n"
   ]
  },
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   "execution_count": 29,
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     "text": [
      "{0: 2, 1: 8, 2: 4, 3: 9, 4: 1, 5: 6, 6: 7, 7: 3, 8: 0, 9: 5}\n"
     ]
    }
   ],
   "source": [
    "import numpy as np\n",
    "np.random.seed(0)\n",
    "n=10\n",
    "perm=np.random.permutation(10)\n",
    "d={i:perm[i] for i in range(n)}\n",
    "print(d)"
   ]
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   "source": [
    "'''Enter your code here'''"
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