stanford

🔍

question:Create a React component that accepts a string as a parameter and prints it in the console.

answer:class StringPrinter extends React.Component{ render(){ console.log(this.props.string); return null; } }

question:Determine the most efficient way to sort a complex data structure using Java. [3, 4, 2, 7, 9, 1, 5]

answer:public void swap(int[] arr, int i, int j) { int temp = arr[i]; arr[i] = arr[j]; arr[j] = temp; } public void quickSort(int[] arr, int start, int end) { if (start < end) { int partitionIndex = partition(arr, start, end); quickSort(arr, start, partitionIndex-1); quickSort(arr, partitionIndex+1, end); } } public int partition(int[] arr, int start, int end) { int pivot = arr[end]; int i = start-1; for (int j = start; j < end; j++) { if (arr[j] <= pivot) { i++; swap(arr, i, j); } } swap(arr, i+1, end); return i+1; }

question:mplement a search algorithm in C++ that takes in a list of integers and a target value and finds the index of the target if it exists in the list. List: [2, 4, 6, 8, 10], Target: 8

answer:// C++ Program to implement Search #include <bits/stdc++.h> using namespace std; // function to implement search int search(vector <int> list, int x) { // traversing the list for (int i = 0; i<list.size(); i++) if (list.at(i) == x) return i; return -1; } // driver code int main() { vector <int> list({2, 4, 6, 8, 10}); int x = 8; int index = search(list, x); if (index != -1) cout << "Element found at index " << index; else cout << "Element not found"; return 0; }

question:Transform a given XML document into a JSON object using Python.

answer:import xmltodict # open the XML document with open("document.xml") as f: xml_data = f.read() # convert to json json_data = xmltodict.parse(xml_data) # print the JSON object print(json.dumps(json_data, indent=2))