禁忌🔞未成年勿点🔞

algo/1.js

@@ -2,4 +2,21 @@
  * @param {number[]} nums
  * @return {number}
  */
-var maxSubArray = function (nums) {};
+var maxSubArray = function (nums) {
+    let left = 0;
+    let right = nums.length - 1;
+    let max = 0;
+    while(right > left){
+        let current = 0;
+        for(let i = left;i <= right;i++){
+            current = current + nums[i];
+        }
+        if(nums[left]>nums[right]){
+            right--;
+        }else{
+            left++;
+        }
+        max = Math.max(max,current);
+    }
+    return max;
+};

algo/2.js

@@ -3,7 +3,9 @@
  * @param {Promise} promise2
  * @return {Promise}
  */
-var addTwoPromises = async function (promise1, promise2) {};
+var addTwoPromises = async function (promise1, promise2) {
+    return new Promise([promise1, promise2]).then(([a,b])=>a+b)
+};
 
 /**
  * addTwoPromises(Promise.resolve(2), Promise.resolve(2))

algo/3.js

@@ -2,4 +2,18 @@
  * @param {number[]} height
  * @return {number}
  */
-var maxArea = function (height) {};
+var maxArea = function (height) {
+    let left = 0;
+    let right = height.length - 1;
+    let max = 0;
+   while(right>left){
+    const currentArea = Math.min(height[left],height[right])*(right-left);
+    max = Math.max(max,currentArea);
+    if(height[left]<height[right]){
+        left++;
+    }else{
+        right--;
+    }
+   }
+   return max;
+};