Create 1616-split-two-strings-to-make-palindrome.js

Author: everthis

1616-split-two-strings-to-make-palindrome.js

@@ -0,0 +1,31 @@
+/**
+ * @param {string} a
+ * @param {string} b
+ * @return {boolean}
+ */
+const checkPalindromeFormation = function(a, b) {
+  return helper(a, b) || helper(b, a)
+};
+
+function helper(A, B) {
+  const str_len = A.length
+  let idx = 0
+  while(A[idx] === B[str_len - idx - 1]) {
+    idx += 1
+  }
+  console.log(idx)
+  if (idx > Math.floor(str_len / 2) ) return true
+  else if (chk(A.slice(idx + 1, str_len - idx - 2 + 1))) return true
+  else if (chk(B.slice(idx + 1, str_len - idx - 2 + 1))) return true
+  else return false
+} 
+
+function chk(s) {
+  let l = 0, r = s.length - 1
+  while(l < r) {
+    if(s[l] !== s[r]) return false
+    l++
+    r--
+  }
+  return true
+}