Create: 0682-baseball-game

Author: Mohammed785

csharp/0682-baseball-game.cs

@@ -0,0 +1,26 @@
+public class Solution {
+    public int CalPoints(string[] operations) {
+        List<int> stack = new();
+
+        foreach(var operation in operations)
+        {
+            switch(operation)
+            {
+                case "D":
+                    stack.Add(stack[stack.Count()-1]*2);
+                    break;
+                case "+":
+                    stack.Add(stack[stack.Count()-1] + stack[stack.Count()-2]);
+                    break;
+                case "C":
+                    stack.RemoveAt(stack.Count()-1);
+                    break;
+                default:
+                    stack.Add(int.Parse(operation));
+                    break;
+            }
+        }
+        
+        return stack.Sum();
+    }
+}

javascript/0682-baseball-game.js

@@ -0,0 +1,19 @@
+/**
+ * @param {string[]} operations
+ * @return {number}
+ */
+var calPoints = function (operations) {
+    const stack = [];
+    for(const op of operations){
+        if(op==="+"){
+            stack.push(stack[stack.length - 1] + stack[stack.length - 2]);
+        }else if(op==="C"){
+            stack.pop()
+        }else if(op==="D"){
+            stack.push(stack[stack.length - 1] * 2);
+        }else{
+            stack.push(parseInt(op))
+        }
+    }
+    return stack.reduce((prev,curr)=>prev+curr,0)
+};

swift/0682-baseball-game.swift

@@ -0,0 +1,17 @@
+class Solution {
+    func calPoints(_ operations: [String]) -> Int {
+        var scoreArray = [Int]()
+		for i in 0..<operations.count {
+			if operations[i] == "C" {
+				scoreArray.removeLast()
+			} else if operations[i] == "D" {
+				scoreArray.append(scoreArray.last! * 2)
+			} else if operations[i] == "+" {
+				scoreArray.append(scoreArray[scoreArray.count - 2] + scoreArray[scoreArray.count - 1])
+			} else {
+				scoreArray.append(Int(operations[i])!)
+			}
+		}
+		return scoreArray.isEmpty ? 0 : scoreArray.reduce(0, +)
+    }
+}