solved: problem 1

Author: ryoppippi

code/1.two-sum.ts

@@ -0,0 +1,17 @@
+// @leet start
+function twoSum(nums: number[], target: number): number[] {
+  const map = new Map<number, number>();
+
+  for (let i = 0; i < nums.length; i++) {
+    const sub = target - nums[i];
+
+    const st = map.get(sub);
+    if (st != null) {
+      return [i, st];
+    }
+
+    map.set(nums[i], i);
+  }
+  return [];
+}
+// @leet end