Create 2730-find-the-longest-semi-repetitive-substring.js

Author: everthis

2730-find-the-longest-semi-repetitive-substring.js

@@ -0,0 +1,19 @@
+/**
+ * @param {string} s
+ * @return {number}
+ */
+const longestSemiRepetitiveSubstring = function(s) {
+  let res = 1
+  let i = 0, j = 1, last = 0
+  while(j <  s.length) {
+    if(s[j] === s[j - 1]) {
+      if(last) i = last
+      last = j
+    }
+    
+    res = Math.max(res, j - i + 1)
+    j++
+  }
+  
+  return res
+};