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Author: Candida18

8960_Candida_Practical_2.ipynb

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+ "metadata": {
+ "colab": {
+ "name": "8960 Candida - Practical 2.ipynb",
+ "provenance": [],
+ "collapsed_sections": [],
+ "authorship_tag": "ABX9TyP4m+vvP+jimTa1VMbrbyaQ",
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+ "kernelspec": {
+ "name": "python3",
+ "display_name": "Python 3"
+ },
+ "language_info": {
+ "name": "python"
+ }
+ },
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {
+ "id": "view-in-github",
+ "colab_type": "text"
+ },
+ "source": [
+ "<a href=\"https://colab.research.google.com/github/Candida18/Python/blob/main/8960_Candida_Practical_2.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {
+ "id": "DW2vJ9nhFmYq"
+ },
+ "source": [
+ "**Name : Candida Ruth Noronha**\n",
+ "\n",
+ "**Class : SE COMPS B**\n",
+ "\n",
+ "**Roll No. : 8960**\n",
+ "\n",
+ "**Title : Python Experiment 2**"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {
+ "id": "WyAdgO-VFqY0"
+ },
+ "source": [
+ "**OOPS**\n",
+ "\n",
+ "1. Write a Python class to find a pair of elements (indices of the two numbers) from a given array whose sum equals a specific target number.\n",
+ "\n",
+ "**Code :**"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "metadata": {
+ "id": "ORLMkyb-FaFO",
+ "colab": {
+ "base_uri": "https://localhost:8080/"
+ },
+ "outputId": "e279e730-3831-434e-ca31-f97032a18549"
+ },
+ "source": [
+ "\n",
+ "class Pair :\n",
+ " def __init__(self,list,target):\n",
+ " self.list = list\n",
+ " self.target=target;\n",
+ "\n",
+ " def pairOfNum(self):\n",
+ " print(\"The pair of indices are : \\n\")\n",
+ " for i in range(0,len(self.list)):\n",
+ " for j in range(i+1,len(self.list)):\n",
+ " if(self.list[i] + self.list[j] == self.target):\n",
+ " print((i+1,j+1))\n",
+ " \n",
+ " \n",
+ "if __name__ == \"__main__\":\n",
+ " numbers=[10,20,10,40,50,60,70]\n",
+ " target= 50\n",
+ " t = Pair(numbers,target)\n",
+ " t.pairOfNum()\n",
+ "\n",
+ "\n"
+ ],
+ "execution_count": null,
+ "outputs": [
+ {
+ "output_type": "stream",
+ "text": [
+ "The pair of indices are : \n",
+ "\n",
+ "(1, 4)\n",
+ "(3, 4)\n"
+ ],
+ "name": "stdout"
+ }
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {
+ "id": "AD8o0nRTjNf5"
+ },
+ "source": [
+ "**OOPS**\n",
+ "\n",
+ "2. Write a Python class to get all possible unique subsets from a set of distinct integers.\n",
+ "\n",
+ "**Code :**"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "metadata": {
+ "id": "osQTLZAZjM0k",
+ "colab": {
+ "base_uri": "https://localhost:8080/"
+ },
+ "outputId": "89059592-6967-4fe0-ba60-379a8dbbee40"
+ },
+ "source": [
+ "class Subset:\n",
+ " def f1(self, s1):\n",
+ " return self.f2([], sorted(s1))\n",
+ "\n",
+ " def f2(self, curr, s1):\n",
+ " if s1:\n",
+ " return self.f2(curr, s1[1:]) + self.f2(curr + [s1[0]], s1[1:])\n",
+ " return [curr]\n",
+ "\n",
+ "\n",
+ "a = []\n",
+ "n = int(input(\"Enter number of elements in the list: \"))\n",
+ "for i in range(0, n):\n",
+ " b = int(input(\"Enter an element: \"))\n",
+ " a.append(b)\n",
+ "print(\"\\nSubsets : \")\n",
+ "print(Subset().f1(a))"
+ ],
+ "execution_count": null,
+ "outputs": [
+ {
+ "output_type": "stream",
+ "text": [
+ "Enter number of elements in the list: 3\n",
+ "Enter an element: 4\n",
+ "Enter an element: 5\n",
+ "Enter an element: 6\n",
+ "\n",
+ "Subsets : \n",
+ "[[], [6], [5], [5, 6], [4], [4, 6], [4, 5], [4, 5, 6]]\n"
+ ],
+ "name": "stdout"
+ }
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {
+ "id": "Sd-jQiTV1vMl"
+ },
+ "source": [
+ "**Exception Handling**\n",
+ "\n",
+ "An interactive caluculator: Program reads an expression as input and has to\n",
+ "calculate the value of expression. The program throws an exception if the given\n",
+ "expression is not in expected format.\n",
+ "\n",
+ "**Code :**"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "metadata": {
+ "colab": {
+ "base_uri": "https://localhost:8080/"
+ },
+ "id": "XnkF_Y043Rw2",
+ "outputId": "429de4b8-2691-4fa2-b078-d30cbd153890"
+ },
+ "source": [
+ "class Calculator:\n",
+ " def perform(str):\n",
+ " try:\n",
+ " if len(str) > 3:\n",
+ " raise ValueError(\"Please enter 2 operands and one operator only\")\n",
+ " else:\n",
+ " val_1 = int(str[0])\n",
+ " op = str[1]\n",
+ " val_2 = int(str[2])\n",
+ " if op == '+':\n",
+ " ans = val_1 + val_2\n",
+ " elif op == '-':\n",
+ " ans = val_1 - val_2\n",
+ " elif op == '*':\n",
+ " ans = val_1 * val_2\n",
+ " elif op == '/'\n",
+ " ans = val_1 / val_2\n",
+ " elif op == '//'\n",
+ " ans = val_1 // val_2\n",
+ " print(ans)\n",
+ " except:\n",
+ " print(\"\\nEntry of two operands and one operator is only allowed !\")\n",
+ "\n",
+ "if __name__ == \"__main__\":\n",
+ " expr = []\n",
+ " expr = input(\"Enter the expression : \") \n",
+ " Calculator.perform(expr)\n"
+ ],
+ "execution_count": null,
+ "outputs": [
+ {
+ "output_type": "stream",
+ "text": [
+ "Enter the expression : 2 + 3 / 8\n",
+ "\n",
+ "Entry of two operands and one operator is only allowed!\n"
+ ],
+ "name": "stdout"
+ }
+ ]
+ }
+ ]
+}