Create 3561-resulting-string-after-adjacent-removals.js

Author: everthis

3561-resulting-string-after-adjacent-removals.js

@@ -0,0 +1,23 @@
+/**
+ * @param {string} s
+ * @return {string}
+ */
+var resultingString = function (s) {
+  let stack = []
+  for (let c of s) {
+    if (stack.length === 0) {
+      stack.push(c)
+    } else {
+      if (
+        (c === 'z' && stack[stack.length - 1] === 'a') ||
+        (c === 'a' && stack[stack.length - 1] === 'z') ||
+        Math.abs(c.charCodeAt(0) - stack[stack.length - 1].charCodeAt(0)) === 1
+      ) {
+        stack.pop()
+      } else {
+        stack.push(c)
+      }
+    }
+  }
+  return stack.join('')
+}