g2001_2100.s2011_final_value_of_variable_after_performing_operations.Solution

public class Solution extends Object

2011 - Final Value of Variable After Performing Operations.Easy There is a programming language with only four operations and one variable <code>X</code>: <ul> <li><code>++X</code> and <code>X++</code> increments the value of the variable <code>X</code> by <code>1</code>.</li> <li><code>--X</code> and <code>X--</code> decrements the value of the variable <code>X</code> by <code>1</code>.</li> </ul> Initially, the value of <code>X</code> is <code>0</code>. Given an array of strings <code>operations</code> containing a list of operations, return the final value of <code>X</code> after performing all the operations. Example 1: Input: operations = [“–X”,“X++”,“X++”] Output: 1 Explanation: The operations are performed as follows: Initially, X = 0. –X: X is decremented by 1, X = 0 - 1 = -1. X++: X is incremented by 1, X = -1 + 1 = 0. X++: X is incremented by 1, X = 0 + 1 = 1. Example 2: Input: operations = [“++X”,“++X”,“X++”] Output: 3 Explanation: The operations are performed as follows: Initially, X = 0. ++X: X is incremented by 1, X = 0 + 1 = 1. ++X: X is incremented by 1, X = 1 + 1 = 2. X++: X is incremented by 1, X = 2 + 1 = 3. Example 3: Input: operations = [“X++”,“++X”,“–X”,“X–”] Output: 0 Explanation: The operations are performed as follows: Initially, X = 0. X++: X is incremented by 1, X = 0 + 1 = 1. ++X: X is incremented by 1, X = 1 + 1 = 2. –X: X is decremented by 1, X = 2 - 1 = 1. X–: X is decremented by 1, X = 1 - 1 = 0. Constraints: <ul> <li><code>1 <= operations.length <= 100</code></li> <li><code>operations[i]</code> will be either <code>"++X"</code>, <code>"X++"</code>, <code>"--X"</code>, or <code>"X--"</code>.</li> </ul>

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Solution()
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int

finalValueAfterOperations(String[] operations)

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

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- Solution
  
  public Solution()
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- finalValueAfterOperations
  
  public int finalValueAfterOperations(String[] operations)

Class Solution

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Solution

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finalValueAfterOperations