Solve it Question 2Let say an Array consist of String names as follow:[i]String[0]JohnMarthaAlexCindyRoland[1][2][3][4][5][6]SusanDidie(a) Write a code that can Search for array location (1) of "Roland" in the arrayExample output:Enter Name: RolandSearching...Result: The Name is at [4](b) Write a code that can Sort the array in alphabetical order.Example output:Current Names in Arrays: John, Martha..... etcSorting...Sorted Names : Alex......

#include <stdio.h> #include <string.h> int main() { char str[100]; //string for…

Answered: Question 2 Let say an Array consist of…

Question 2 Let say an Array consist of String names as follow: [i] [0] [1] [2] [3] [4] [5] [6] String John Martha Alex Cindy Roland Susan Didie

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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An NP-complete problem is a fascinating kind of problem because till now no one has discovered the polynomial-time algorithm to solve it and also no one has proved that no polynomial-time algorithm can exist for any NP-complete problem. It is an open research problem since it was first posed in 1971 to prove P#NP. The NxN Queens problem can be summarized as follows: putting N chess queens on an N×N chessboard such that none of them is able to attack any other queen using the standard chess queen's moves (row-column- diagonal). Thus, a solution requires that no two queens share the same row, column, or diagonal. Solutions exist only for N = 1 or N 2 4. Use the given function below to test whether a queen is attacked by another or not. You are not allowed to use any other code to check if a queen is safe. Implement a backtracking solution for the algorithm in Java that finds all possible solutions for N queens and measure the execution time it takes for N=4 to 12 and compare them…
Note: For all integers k,n it is true that kn, k+n, and k-n are integers. An integer k is even if and only if there exists an integer r such that k=2r. An integer k is odd if and only if there exists an integer r such that k=2r+1. For every integer k it is true that if k is even then k is not odd. For every integer k it is true that if k is odd then k is not even. For every integer k it is true that if k is not even then k is odd. For every integer k it is true that if k is not odd then k is even. If P then Q means the same thing as P → Q (P implies Q). 3. Consider the argument form pvr .. p→r Is this argument form valid? Prove that your answer is correct. 4. Prove that for every integer d, if d³ is odd then d is odd.
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