Package g2101_2200.s2139_minimum_moves_to_reach_target_score

Class Solution

java.lang.Object

g2101_2200.s2139_minimum_moves_to_reach_target_score.Solution

public class Solution
extends Object

2139 - Minimum Moves to Reach Target Score.

Medium

You are playing a game with integers. You start with the integer 1 and you want to reach the integer target.

In one move, you can either:

• Increment the current integer by one (i.e., x = x + 1).
• Double the current integer (i.e., x = 2 * x).

You can use the increment operation any number of times, however, you can only use the double operation at most maxDoubles times.

Given the two integers target and maxDoubles, return the minimum number of moves needed to reach target starting with 1.

Example 1:

Input: target = 5, maxDoubles = 0

Output: 4

Explanation: Keep incrementing by 1 until you reach target.

Example 2:

Input: target = 19, maxDoubles = 2

Output: 7

Explanation: Initially, x = 1

Increment 3 times so x = 4

Double once so x = 8

Increment once so x = 9

Double again so x = 18

Increment once so x = 19

Example 3:

Input: target = 10, maxDoubles = 4

Output: 4

Explanation: Initially, x = 1

Increment once so x = 2

Double once so x = 4

Increment once so x = 5

Double again so x = 10

Constraints:

• 1 <= target <= 109
• 0 <= maxDoubles <= 100

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	minMoves(int target, int maxDoubles)

Methods inherited from class java.lang.Object

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

Constructor Detail

Solution

public Solution()

Method Detail

minMoves

public int minMoves(int target,
                    int maxDoubles)