If we are told to guess a number between 5 and 5 inclusive, clearly we only need 1 guess since there is only one possibility - 5. If we have to guess a number between 5 and 7 inclusive, we might guess it in one guess it
If we are told to guess a number between 5 and 5 inclusive, clearly we only need 1 guess since there is only one possibility - 5. If we have to guess a number between 5 and 7 inclusive, we might guess it in one guess it
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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Question
A
![If we are told to guess a number between 5 and 5 inclusive, clearly we only need 1 guess
since there is only one possibility - 5.
If we have to guess a number between 5 and 7 inclusive, we might guess it in one guess if
we are lucky, but in the worst case we can still guess it in 2 guesses. This is contingent
upon being told whether or not we guessed too high or too low.
Our first guess could be 6. If we guessed correctly that is only one guess. If we guess
either too low or too high, we only have one possible value to guess from remaining - 5 or
7. Our maximum number of guesses is therefore 2.
Given an inclusive range of values to guess from, calculate the maximum number of
guesses we will take to guarantee we guess any selected value providing we guess
efficiently.
Input Format
Input is the low and high values representing our range from which to guess.
Constraints
Both the low and high values will be valid java integers. High will be greater or equal to
low.
Output Format
Single integer value representing the maximum number of guesses we will need.
Sample Input 0
79
Sample Output 0
2
Explanation 0
first guess is 8, second will be either 7 or 9. Two guesses maximum for three possible
choices.
Sample Input 1
39
Sample Output 1
3
Explanation 1
first guess is 6, our remaining range is now either 3 - 5 or 7-9, and we saw that 3
possibilities requires 2 guesses. So, three guesses maximum.
1 import java.io.*;
2 import java.util.*;
3
import java.text.*;
4 import java.math. *;
5 import java.util.regex.*;
6
7
public class Solution {
8
9 ▾
10
11
12
13 }
public static void main(String[] args) {
Scanner in = new Scanner (System.in);
// your code goes here
}
Java 8](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F84b9759d-3bd7-481b-9da5-01ee09be0953%2Fcf4b2a3f-3638-4503-a936-e9e780c06bc4%2Fww2v16k_processed.jpeg&w=3840&q=75)
Transcribed Image Text:If we are told to guess a number between 5 and 5 inclusive, clearly we only need 1 guess
since there is only one possibility - 5.
If we have to guess a number between 5 and 7 inclusive, we might guess it in one guess if
we are lucky, but in the worst case we can still guess it in 2 guesses. This is contingent
upon being told whether or not we guessed too high or too low.
Our first guess could be 6. If we guessed correctly that is only one guess. If we guess
either too low or too high, we only have one possible value to guess from remaining - 5 or
7. Our maximum number of guesses is therefore 2.
Given an inclusive range of values to guess from, calculate the maximum number of
guesses we will take to guarantee we guess any selected value providing we guess
efficiently.
Input Format
Input is the low and high values representing our range from which to guess.
Constraints
Both the low and high values will be valid java integers. High will be greater or equal to
low.
Output Format
Single integer value representing the maximum number of guesses we will need.
Sample Input 0
79
Sample Output 0
2
Explanation 0
first guess is 8, second will be either 7 or 9. Two guesses maximum for three possible
choices.
Sample Input 1
39
Sample Output 1
3
Explanation 1
first guess is 6, our remaining range is now either 3 - 5 or 7-9, and we saw that 3
possibilities requires 2 guesses. So, three guesses maximum.
1 import java.io.*;
2 import java.util.*;
3
import java.text.*;
4 import java.math. *;
5 import java.util.regex.*;
6
7
public class Solution {
8
9 ▾
10
11
12
13 }
public static void main(String[] args) {
Scanner in = new Scanner (System.in);
// your code goes here
}
Java 8
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