Place 4 queens on a chessboard such that no queen attacks any other. A queen attacks any piece in the same row, column or diagonal. For this 4 queen problem, please define the followings: (1) state space (2) Initial State/final state (3) successor function (4) goal test (5) path cost

Place 4 queens on a chessboard such that no queen attacks any other. A queen attacks any piece in the same row, column or diagonal. For this 4 queen problem, please define the followings: (1) state space (2) Initial State/final state (3) successor function (4) goal test (5) path cost

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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Show the differences between breadth first search and best first search in 8 Puzzle game. Start and goal states are given below. Sequence of operation must be up, down, left, right for blank tile and heuristic function is number of tiles out of place. Maximum 4 levels may be searched.
Q. Consider the dining philosophers problem where 5 philosophers are involved. Assume that there are two types of philosophers. The first type named as lefty (L) picks up his left chopstick first and the second type called righty (R) picks up his right chopstick first. The behaviour of a righty is given below. Philosopher i: do{ wait(chopstick[(i+1) % 5]); wait(chopstick[i]); eat signal(chopstick[i]); signal(chopstick[(i+1) % 5]); } State whether the following sets of philosophers seating at the table may lead to a deadlock? Philosophers RRRRR (5 lefty philosophers) RRRLR (4 Fighty, one lefty) Deadlock / No Deadlock LLLLL LLRRR RRLLL RIGHTY
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Need a implementation plan for this : Our aim is to take increase toy paratrooper flight time with the parachutes provided and find suitable alternatives to reduce its descent through the most feasible means. The justification for increased flight time being if we were to take these model paratroopers to represent actual paratroopers' lower descent speeds will provide safer landings and more maneuverable descents. We learned through observation that our paratrooper's initial descent is practically freefall and extremely erratic which gives us our main point of optimization. Our only variables which we can alter are wind resistance provided by said parachute, elevation, conditions(temperature) within a margin, and weight. We will make alterations where it is possible to reach our goal of a practical lower descent speed and thereby an increase in descent time and more stable, safe flight for our toy paratroopers.
I need help with this question please, thank you for the help and taking your time to help me :) 2.1. Consider a state space where the start state is number 1 and each state k has two successors: numbers 2k (left child) and 2k + 1 (right child). (a) Draw the portion of the state space for states 1 to 15. (b) Suppose the goal state is 11. List the steps to follow the following algorithms: (I) BFS (II) DFS (III) UCS (Suppose the cost from parent node to left child node is 1, from parent to right child node is 2) 2.2. Implement the BFS algorithm with the data in assignment 2.1 (start 1, goal 11) in the programming language you are comfortable with. (do this one in python please)
The Dining Philosopher solution using monitors shown in the code snippet below does not suffer from deadlock. However, starvation is still possible. Explain in details why. Each philosopher i invokes the operations pickup() and putdown() in the following sequence: DiningPhilosophers.pickup(i); EAT DiningPhilosophers.putdown(i);
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