Create 2831-find-the-longest-equal-subarray.js

Author: everthis

2831-find-the-longest-equal-subarray.js

@@ -0,0 +1,19 @@
+/**
+ * @param {number[]} nums
+ * @param {number} k
+ * @return {number}
+ */
+const longestEqualSubarray = function(nums, k) {
+  let maxf = 0, i = 0, n = nums.length;
+  let count = {};
+  for (let j = 0; j < n; j++) {
+      if(count[nums[j]] == null) count[nums[j]] = 0
+      maxf = Math.max(maxf, ++count[nums[j]]);
+      if (j - i + 1 - maxf > k) {
+          if(count[nums[i]] == null) count[nums[i]] = 0
+          --count[nums[i++]];
+      }
+        
+  }
+  return maxf;
+};