Package g0301_0400.s0374_guess_number_higher_or_lower

Class Solution

java.lang.Object

g0301_0400.s0374_guess_number_higher_or_lower.Solution

public class Solution
extends Object

374 - Guess Number Higher or Lower.<p>Easy</p> <p>We are playing the Guess Game. The game is as follows:</p> <p>I pick a number from <code>1</code> to <code>n</code>. You have to guess which number I picked.</p> <p>Every time you guess wrong, I will tell you whether the number I picked is higher or lower than your guess.</p> <p>You call a pre-defined API <code>int guess(int num)</code>, which returns 3 possible results:</p> <ul> <li><code>-1</code>: The number I picked is lower than your guess (i.e. <code>pick < num</code>).</li> <li><code>1</code>: The number I picked is higher than your guess (i.e. <code>pick > num</code>).</li> <li><code>0</code>: The number I picked is equal to your guess (i.e. <code>pick == num</code>).</li> </ul> <p>Return <em>the number that I picked</em>.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> n = 10, pick = 6</p> <p><strong>Output:</strong> 6</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> n = 1, pick = 1</p> <p><strong>Output:</strong> 1</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> n = 2, pick = 1</p> <p><strong>Output:</strong> 1</p> <p><strong>Example 4:</strong></p> <p><strong>Input:</strong> n = 2, pick = 2</p> <p><strong>Output:</strong> 2</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= n <= 2³¹ - 1</code></li> <li><code>1 <= pick <= n</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	guessNumber(int n)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

guessNumber

public int guessNumber(int n)