171st Commit

src/page-24/2540. Minimum Common Value/getCommon.test.ts

@@ -0,0 +1,17 @@
+import { getCommon } from './getCommon';
+
+describe('2540. Minimum Common Value', () => {
+  test('getCommon', () => {
+    {
+      const nums1 = [1, 2, 3];
+      const nums2 = [2, 4];
+      expect(getCommon(nums1, nums2)).toBe(2);
+    }
+
+    {
+      const nums1 = [1, 2, 3, 6];
+      const nums2 = [2, 3, 4, 5];
+      expect(getCommon(nums1, nums2)).toBe(2);
+    }
+  });
+});

src/page-24/2540. Minimum Common Value/getCommon.ts

@@ -0,0 +1,23 @@
+type getCommon = (nums1: number[], nums2: number[]) => number;
+
+/**
+ * Accepted
+ */
+export const getCommon: getCommon = (nums1, nums2) => {
+  let pointer1 = 0;
+  let pointer2 = 0;
+
+  while (pointer1 < nums1.length && pointer2 < nums2.length) {
+    if (nums1[pointer1] === nums2[pointer2]) {
+      return nums1[pointer1];
+    }
+
+    if (nums1[pointer1] < nums2[pointer2]) {
+      pointer1 += 1;
+    } else {
+      pointer2 += 1;
+    }
+  }
+
+  return -1;
+};