Add sum-of-two-integers solution in TS

Author: Jeehay28

sum-of-two-integers/Jeehay28.ts

@@ -0,0 +1,12 @@
+// TC: O(1)
+// SC: O(1)
+function getSum(a: number, b: number): number {
+  while (b !== 0) {
+    let carry = a & b;
+    a = a ^ b; // sum WITHOUT the carry
+    b = carry << 1; // new carry
+  }
+
+  return a;
+}
+