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magnitude = lambda bits: 1_000_000_000_000_000_000 % (2 ** bits)sign = lambda bits: -1 ** (1_000_000_000_000_000_000 // (2 ** bits))print("64 bit sum:", magnitude(64) * sign(64))print("32 bit sum:", magnitude(32) * sign(32))print("16 bit sum:", magnitude(16) * sign(16))
#Python program to print topological sorting of a DAGfrom collections import defaultdict#Class to represent a graphclass Graph:def __init__(self,vertices):self.graph = defaultdict(list) #dictionary containing adjacency Listself.V = vertices #No. of vertices# function to add an edge to graphdef addEdge(self,u,v):self.graph[u].append(v)# A recursive function used by topologicalSortdef topologicalSortUtil(self,v,visited,stack):# Mark the current node as visited.visited[v] = True# Recur for all the vertices adjacent to this vertexfor i in self.graph[v]:if visited[i] == False:self.topologicalSortUtil(i,visited,stack)# Push current vertex to stack which stores resultstack.insert(0,v)# The function to do Topological Sort. It uses recursive# topologicalSortUtil()def topologicalSort(self):# Mark all the vertices as not visitedvisited = [False]*self.Vstack =[]# Call the recursive helper function to store Topological# Sort starting from all vertices one by onefor i in range(self.V):if visited[i] == False:self.topologicalSortUtil(i,visited,stack)# Print contents of stackprint(stack)g= Graph(6)g.addEdge(5, 2);g.addEdge(5, 0);g.addEdge(4, 0);g.addEdge(4, 1);g.addEdge(2, 3);g.addEdge(3, 1);print("Following is a Topological Sort of the given graph")g.topologicalSort()
import os, json, boto3, requestsfrom flask import Flask, request, jsonifyfrom flask_cors import CORS, cross_originfrom random import shuffleapp = Flask(__name__)cors = CORS(app)dynamodb = boto3.resource("dynamodb", region_name="us-east-1")app.url_map.strict_slashes = FalseSECRET_KEY = os.environ.get("SECRET_KEY")@app.route("/teks")def teks_request():teks_file = open("teks.json", "r")data = json.load(teks_file)return jsonify(data)@app.route("/teks/find/113.41.<int:teks_id>.<string:section_id>")def teks_find_request(teks_id, section_id):teks_file = open("teks.json", "r")data = json.load(teks_file)for item in data:if item["id"] == teks_id:for child in item["children"]:if child["id"] == section_id:return {"tek": item, "content": child["content"]}return jsonify([f"Something went wrong. TEKS section id of {section_id} cannot be found within TEKS section {teks_id}."])@app.route("/lessonplan/read/<id>")def read_lesson_plan(id):lesson_table = dynamodb.Table("Lesson_Plans")items = lesson_table.scan()['Items']for lesson in items:if (lesson["uuid"] == id):return jsonify(lesson)return {"error": "id does not exist", "section": id}@app.route("/teks/<int:teks_id>")def teks_id_request(teks_id):teks_file = open("teks.json", "r")data = json.load(teks_file)for item in data:if item["id"] == teks_id:return jsonify(item)return jsonify([f"Something went wrong. TEKS id of {teks_id} cannot be found."])@app.route("/assessment/write", methods=["GET", "POST"])def assessment_write():assessment_json = request.jsonassessment_data = dict(assessment_json)assessment_table = dynamodb.Table("Assessments")assessment_table.put_item(Item=assessment_data)if assessment_data == get_assessment(assessment_data["id"]):return "Success"else:return "Failure"@app.route("/students/read/<id>")def students_read(id):return jsonify(get_students(id))@app.route("/students/read")def all_students_read():student_table = dynamodb.Table("Students")items = student_table.scan()['Items']return jsonify(items)@app.route("/assessment/read/<id>")def assessment_read(id):return jsonify(get_assessment(id))@app.route("/assessment/submit/<id>", methods=["POST"])def submit_assessment(id):assessments_table = dynamodb.Table("Assessments")assessment = assessments_table.get_item(Key={"id": id})if not assessment.get("Item"):return {"error": "id does not exist", "section": id}responses = {question["id"]: question["response"]for question in request.json.get("questions")}correct_answers = 0for response in responses:# print(# (# responses[response],# find_question(assessment.get("Item").get("questions"), response).get(# "correctAnswer"# ),# )# )if responses[response] == find_question(assessment.get("Item").get("questions"), response).get("correctAnswer"):correct_answers += 1score = correct_answers / len(request.json.get("questions"))users_table = dynamodb.Table("Students")users_table.update_item(Key={"uuid": request.json.get("student_id")},UpdateExpression="SET completedAssessments = list_append(completedAssessments, :i)",ExpressionAttributeValues={":i": [{"id": id,"score": round(score * 100),}]},)message = Noneif round(score * 100) > 70:message = f"Congratulations! You passed your assessment with a {round(score * 100)}%."else:message = f"You failed your assessment with a {round(score * 100)}%."sns = boto3.client("sns", region_name="us-east-1")number = "+15125967383"sns.publish(PhoneNumber=number, Message=message)return {"score": score, "message": message}def find_question(all, id):#print("id to find: ", id)for question in all:if question["id"] == id:#print(question)return questiondef get_assessment(id):assessment_table = dynamodb.Table("Assessments")results = assessment_table.get_item(Key={"id": id})if results.get("Item") is None:return {"error": "id does not exist", "section": id}else:quiz = results.get("Item")return {"title": quiz.get("title"),"id": quiz.get("id"),"questions": [{"id": question.get("id"),"title": question.get("title"),"options": random_answers(question.get("incorrectAnswers")+ [question.get("correctAnswer")]),}for question in quiz.get("questions")],}def get_students(id):students_table = dynamodb.Table('Students')results = students_table.get_item(Key = {"uuid": id})if(results.get("Item") is None):return {'error': 'id does not exist', 'section': id}else:student = results.get("Item")return studentdef lesson_plans_read():student_table = dynamodb.Table("Lesson_Plans")items = student_table.scan()['Items']return jsonify(items)def random_answers(answers):shuffle(answers)return answers@app.route("/recommendations/<uuid>")def get_recommendation(uuid):student_info_table = dynamodb.Table('Students')lesson_plans_table = dynamodb.Table('Lesson_Plans')student = get_students(uuid)tek = student.get("struggleTeks")[0]lesson_plans = lesson_plans_table.scan( Select='ALL_ATTRIBUTES', FilterExpression='tek = :s', ExpressionAttributeValues={ ":s": tek })#print(lesson_plans)return jsonify({"student": student, "lesson_plans": lesson_plans.get("Items")})if __name__ == "__main__":app.run(host="0.0.0.0", debug=True)
# Function to multiply two matricesdef multiply_matrices(matrix1, matrix2):# Check if the matrices can be multipliedif len(matrix1[0]) != len(matrix2):print("Error: The number of columns in the first matrix must be equal to the number of rows in the second matrix.")return None# Create the result matrix filled with zerosresult = [[0 for _ in range(len(matrix2[0]))] for _ in range(len(matrix1))]# Perform matrix multiplicationfor i in range(len(matrix1)):for j in range(len(matrix2[0])):for k in range(len(matrix2)):result[i][j] += matrix1[i][k] * matrix2[k][j]return result# Example matricesmatrix1 = [[1, 2, 3],[4, 5, 6],[7, 8, 9]]matrix2 = [[10, 11],[12, 13],[14, 15]]# Multiply the matricesresult_matrix = multiply_matrices(matrix1, matrix2)# Display the resultif result_matrix is not None:print("Result:")for row in result_matrix:print(row)
my_list = [1, 2, 3, 4, 5]removed_element = my_list.pop(2) # Remove and return element at index 2print(removed_element) # 3print(my_list) # [1, 2, 4, 5]last_element = my_list.pop() # Remove and return the last elementprint(last_element) # 5print(my_list) # [1, 2, 4]
def calculate_values():value1 = 10value2 = 20return value1, value2result1, result2 = calculate_values()print("Result 1:", result1)print("Result 2:", result2)