Created ProblemDifficulties in java

sumitchouhan13 · web-flow · commit 87fdb7c5ea5f · 2021-10-26T22:59:54.000+05:30
Added a Codechef problem
diff --git a/ProblemDifficulties.java b/ProblemDifficulties.java
@@ -0,0 +1,32 @@
+import java.util.*;
+
+public class ProblmeDifficulties {
+
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		int t = sc.nextInt();
+		while(t-- > 0) {
+			HashMap<Integer , Integer> hm = new HashMap<>();
+			for(int i = 1 ; i <= 4 ; i++) {
+				int x = sc.nextInt();
+				hm.put(x , hm.getOrDefault(x, 0) + 1);
+			}
+			if(hm.size() == 4 || hm.size() == 3) {
+				System.out.println("2");
+			}else if(hm.size() == 1) {
+				System.out.println("0");
+			}else {
+				for(Integer num : hm.values()) {
+					if(num % 2 == 0) {
+						System.out.println("2");
+					}else {
+						System.out.println("1");
+					}
+					break;
+				}
+			}
+		}
+		sc.close();
+	}
+
+}
