If the DataFrame c is defined as given below, import numpy as np import pandas as pd a-np.array([1,2,3]) b-np.array([1e,20,30]) c-pd.DataFrame ({'A':a, 'B':b, 'c':100}) How many elements will the column 'C' in the DataFrame c have? O a. 3 O b. 1 O c. None of these

If the DataFrame c is defined as given below, import numpy as np import pandas as pd a-np.array([1,2,3]) b-np.array([1e,20,30]) c-pd.DataFrame ({'A':a, 'B':b, 'c':100}) How many elements will the column 'C' in the DataFrame c have? O a. 3 O b. 1 O c. None of these

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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İN C PROGRAMMİNG.Write a function that takes 20x20 array of real numbers as a parameter. The function should returnthe number of elements that are greater than the average of their neighbors (NOT-Including the diagonal neighbors)Example: In a 3x3 array : { {1, 3, 5},{7, 2, 4},{0, -2, 9} } element 5 is greater than the average of its neighbors (3,4) element 2 is not greater than the average of its neighbors (7,-2,3,4} element 4 is not greater than the average of its neighbors (5,2,9) Hint: You may consider Divide&Conquer and implement some other function to be called in the solution
You are developing program to control operations of small bus transport companies. You should design and develop a class that will be used to create objects that hold information about their routes. The information kept about each route includes: • Route number • Departure time • Bus type • Seat capacity • Seats sold • Route departure town (i.e. the starting point) Route destination town (i.e. the other end point) • Additional information Behaviour - Functions of this class: • Constructor - default constructor, all data members initialised to default values. • Constructor - takes the route number, seat capacity, departure and destination as input parameters. A check_available_seats function that returns the number of unsold (still available) seats on the route; • A sell_seats function that takes as a parameter the number of seats a customer requires. If there are sufficient seats available the seats sold is increased by that amount. If there are
JavaScript NOTE: Dataset is defined below. Using the data set as a pre-defined variable in your program, write code that uses the dataset to print the FIRST NAMES ONLY of people who have BOTH above average English grades AND below average age from the dataset. The solutions for the textbook examples assume you are able to export in a framework like node.js, which is why in the data set I provide, I simply set the array of objects as a variable. Your code will be in the same file (treat it like any other array variable). You can do the same with the sample files the chapter provides. For example: var ancestry = [ { .. object .. }, ...]// your code here Requirements: Cannot use any array type built-in functions except filter(), map(), and reduce(). var dataSet = [ { "name":"Maura Glass", "age":60, "math":97, "english":63, "yearsOfEducation":4 }, { "name":"James Gates", "age":55, "math":72, "english":96, "yearsOfEducation":10 }, { "name":"Mills Morris", "age":26,…
To check if COVID Social Distancing is applied or not in a classroom, a 2-D array of characters can be used to represent seating in a classroom as in the following example table. The valne "X in an element of the classroom array means that the seat is not occupied and any other value in an array element means that the seat is occupied. +For example consider the following seating table A X H X X I X e K b X X J X E in the above tahle the element that violate the social distancing rule are H,n,q, I, e, K, E Write a C function named covid sd that checks if COVID Social Distancing is applied or not in a classroom. Your function must o accept exactly three parameters named: classroom, num rows, and Ist. The classroom parameter is a 2-D array of characters with 6 columns. This array represents the classroom seating. num rows is the number of rows in the 2D array, Ist is a 1-D array of characters. The size of Ist is 6 * num rows. o store the values of each seat that violates the COVID Social…
a- Any element in an array is accessed by an index,this index must be ——--]----- value b- ----2---- can store a large number of value with single name.and this value have ----3---- data type € mmmmme {---- statment use for defines a data type d- C++ does ----- 5------ functions to return a value of the type array e- There are several algorithms to sort an array some of them ------ 6---— and -----
Define the following function: void multiplication(int table[][COL]); Function multiplication() would generate the elements of the following 20 array: 1 2 J 4 5 6 2 4 6 8 10 12 3 6 9 12 15 18 4 8 12 16 20 24 5 10 15 20 25 30 6 12 18 24 330 36
solve this by c programming Write a program that deletes the first element in an array which matches a search key. Andprint the new array after deletion.
696832 1/overview/at tempt/ 3174138 blackboard.uob.edu.bh courses/ 24837 1/our assessment/ Write a function called "AddRows" that accepts two parameters: W1: a matrix of size 7x4 elements of type integer B1: a one dimensional array of size 4. For each column in W1, the function will calculate and store in the corresponding element of array B1, the sum of the elements located in even rows of W1. For Example if W1 3 4. 12 7. 6. 3. 4. 6. 9. 5. 5. 10 4. 5. 12 12 10 9. Then B1 35 27 5.
Code to ::::implement a SnapshotArray that supports the following interface: SnapshotArray(int length) initializes an array-like data structure with the given length. Initially, each element equals 0. void set(index, val) sets the element at the given index to be equal to val. int snap() takes a snapshot of the array and returns the snap_id: the total number of times we called snap() minus 1. int get(index, snap_id) returns the value at the given index, at the time we took the snapshot with the given snap_id Example 1: Input: ["SnapshotArray","set","snap","set","get"] [[3],[0,5],[],[0,6],[0,0]] Output: [null,null,0,null,5] Explanation: SnapshotArray snapshotArr = new SnapshotArray(3); // set the length to be 3 snapshotArr.set(0,5); // Set array[0] = 5 snapshotArr.snap(); // Take a snapshot, return snap_id = 0 snapshotArr.set(0,6); snapshotArr.get(0,0); // Get the value of array[0] with snap_id = 0, return 5...
Q1. Implement a SnapshotArray that supports the following interface: SnapshotArray(int length) initializes an array-like data structure with the given length. Initially, each element equals 0. void set(index, val) sets the element at the given index to be equal to val. int snap() takes a snapshot of the array and returns the snap_id: the total number of times we called snap() minus 1. int get(index, snap_id) returns the value at the given index, at the time we took the snapshot with the given snap_id Example 1: Input: ["SnapshotArray","set","snap","set","get"] [[3],[0,5],[],[0,6],[0,0]] Output: [null,null,0,null,5] Explanation: SnapshotArray snapshotArr = new SnapshotArray(3); // set the length to be 3 snapshotArr.set(0,5); // Set array[0] = 5 snapshotArr.snap(); // Take a snapshot, return snap_id = 0 snapshotArr.set(0,6); snapshotArr.get(0,0); // Get the value of array[0] with snap_id = 0, return 5..
Consider the array definitionint num [10] = {3, 3, 3};Pick the Correct answers A. num [9] is the last element of the array num B. The value of num [ 8] is 3 C. The value of num [ 3 ] is 3 D. None of the above