3208_Alternating_Groups_II.java

Author: vishwajeetmishra4

JAVA/3208_Alternating_Groups_II.java

@@ -0,0 +1,22 @@
+// Problem Number: 3208
+
+// Alternating Groups II
+
+class Solution {
+    public int numberOfAlternatingGroups(int[] colors, int k) {
+       final int n=colors.length;
+        int alternating=1;
+        int ans=0;
+
+        for(int i=0; i<n+k-2; i++){
+        alternating= colors[i%n]==colors[(i-1+n)%n]?1:alternating+1;
+        if(alternating>=k){
+            ans++;
+        }
+
+        }
+
+        return ans;
+        
+    }
+}