Create 3208. Alternating Groups II (#735)

Author: Chayandas07

3208. Alternating Groups II

@@ -0,0 +1,14 @@
+class Solution {
+public:
+    int numberOfAlternatingGroups(vector<int>& colors, int k) {
+        int ans = 0, cnt = 1, n = colors.size();
+        for(int i = 1; i < (n + k - 1); i++) {
+            if(colors[i % n] != colors[(i - 1) % n]) {
+                cnt++;
+            }
+            else cnt = 1;
+            if(cnt >= k) ans++;
+        }
+        return ans;
+    }
+};