first commit

2022-12-15 23:51:04 +07:00
commit 87d51fb251
292 changed files with 12623 additions and 0 deletions
@@ -0,0 +1,41 @@
+import java.util.*;
+import java.io.*;
+
+public class Main {
+    static ArrayList<String> ans;
+
+    static void Try(int end, int[] a, int sum, String s) {
+        if (sum % 2 == 1) {
+            System.out.println(s);
+            ans.add(s);
+        }
+        for (int i = a.length - 1; i > end; i--) {
+            Try(i, a, sum + a[i], s + a[i] + ' ');
+        }
+    }
+
+    public static void main(String[] args) throws IOException, ClassNotFoundException {
+        // Scanner sc = new Scanner(new File("ONLINE.in"));
+        Scanner sc = new Scanner(System.in);
+        int t = sc.nextInt();
+        while (t-- > 0) {
+            int n = sc.nextInt();
+            int[] a = new int[n];
+            ans = new ArrayList<>();
+            for (int i = 0; i < n; i++)
+                a[i] = sc.nextInt();
+            for (int i = 0; i < n - 1; i++) {
+                for (int j = i + 1; j < n; j++) {
+                    if (a[i] < a[j]) {
+                        int tmp = a[i];
+                        a[i] = a[j];
+                        a[j] = tmp;
+                    }
+                }
+            }
+            Try(-1, a, 0, "");
+            Collections.sort(ans);
+            // ans.forEach(e -> System.out.println(e));
+        }
+    }
+}