git reimport

archive/2017.09/2017.09.19 - unsorted/C.java

@@ -0,0 +1,71 @@
+package chelper;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import io.InputReader;
+import io.OutputWriter;
+import misc.SimpleSavingChelperSolution;
+
+
+public class C extends SimpleSavingChelperSolution {
+
+  public void solve(int testNumber, InputReader in, OutputWriter out) {
+    wrapSolve(testNumber, in, out);
+  }
+
+  @Override
+  public void solve(int testNumber) {
+    int n = in.nextInt();
+    int x = in.nextInt();
+
+    int M = 524288;
+
+    if (n == 1) {
+      out.println("YES");
+      out.println(x);
+      return;
+    }
+
+    if (n == 2) {
+      if (x != 0) {
+        out.println("YES");
+        out.println(x + " 0");
+        return;
+      }
+
+      out.println("NO");
+      return;
+    }
+
+    int y = M - 1;
+    int t = 0;
+
+    List<Integer> a = new ArrayList<>();
+
+    for (int i = 0; i < n - 2; i++) {
+      a.add(y);
+      t ^= y;
+      y--;
+    }
+
+    for (int i = y; i >= 0; i--) {
+      int t1 = i;
+      int t2 = t ^ i ^ x;
+      if (t2 < i || t2 > M) {
+        a.add(t1);
+        a.add(t2);
+        break;
+      }
+    }
+
+    if (a.size() != n) {
+      System.err.println("NOOO");
+    }
+
+    out.println("YES");
+    for (Integer integer : a) {
+      out.print(integer + " ");
+    }
+  }
+}