Update Solution.java

Author: javadev

src/main/java/g2901_3000/s2920_maximum_points_after_collecting_coins_from_all_nodes/Solution.java

@@ -6,6 +6,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
+@SuppressWarnings("unchecked")
 public class Solution {
  private List<Integer>[] adjList;
  private int[] coins;