description: YouKn0wWho has an integer sequence a_1, a_2, … a_n. Now he will split the sequence a into one or more consecutive subarrays so that each element of a belongs to exactly one subarray. Let k be the number of resulting subarrays, and h_1, h_2, …, h_k be the lengths of the longest increasing subsequences of corresponding subarrays.
  
  For example, if we split [2, 5, 3, 1, 4, 3, 2, 2, 5, 1] into [2, 5, 3, 1, 4], [3, 2, 2, 5], [1], then h = [3, 2, 1].
  
  YouKn0wWho wonders if it is possible to split the sequence a in such a way that the [bitwise XOR](https://en.wikipedia.org/wiki/Bitwise_operation#XOR) of h_1, h_2, …, h_k is equal to 0. You have to tell whether it is possible.
  
  The longest increasing subsequence (LIS) of a sequence b_1, b_2, …, b_m is the longest sequence of valid indices i_1, i_2, …, i_k such that i_1 < i_2 < … < i_k and b_{i_1} < b_{i_2} < … < b_{i_k}. For example, the LIS of [2, 5, 3, 3, 5] is [2, 3, 5], which has length 3.
  
  An array c is a subarray of an array b if c can be obtained from b by deletion of several (possibly, zero or all) elements from the beginning and several (possibly, zero or all) elements from the end.
  
  Input
  
  The first line contains a single integer t (1 ≤ t ≤ 10 000) — the number of test cases.
  
  The first line of each test case contains a single integer n (2 ≤ n ≤ 10^5).
  
  The second line of each test case contains n integers a_1, a_2, …, a_n (1 ≤ a_i ≤ 10^9).
  
  It is guaranteed that the sum of n over all test cases doesn't exceed 3 ⋅ 10^5.
  
  Output
  
  For each test case, print "YES" (without quotes) if it is possible to split into subarrays in the desired way, print "NO" (without quotes) otherwise. You can print each letter in any register (upper or lower).
  
  Example
  
  Input
  
  
  4
  7
  1 3 4 2 2 1 5
  3
  1 3 4
  5
  1 3 2 4 2
  4
  4 3 2 1
  
  
  Output
  
  
  YES
  NO
  YES
  YES
  
  Note
  
  In the first test case, YouKn0wWho can split the sequence in the following way: [1, 3, 4], [2, 2], [1, 5]. This way, the LIS lengths are h = [3, 1, 2], and the bitwise XOR of the LIS lengths is 3 ⊕ 1 ⊕ 2 = 0.
  
  In the second test case, it can be shown that it is impossible to split the sequence into subarrays that will satisfy the condition.
solution: //package codeforces;
  
  import java.io.*;
  import java.util.*;
  
  public class ProblemB {
      private final static FastScanner scanner = new FastScanner();
      //    private final static Reader scanner = new Reader();
      private static final int[][] fourWayDirections = {{0, 1}, {1, 0}, {0, -1}, {-1, 0}};
      private static final int[][] eightWayDirection = {{0, 1}, {0, -1}, {1, 0}, {-1, 0}, {-1, -1}, {-1, 1}, {1, -1}, {1, 1}};
      private final static long M = 1000000007L;
  
      public static void main(String[] args) throws IOException {
          int n = scanner.nextInt();
          for (int i = 0; i < n; i++) {
              solve();
          }
  //        solve();
      }
  
      public static void solve() throws IOException {
          int n = scanner.nextInt();
          long[] arr = new long[n+1];
          boolean inc = true;
          for (int i = 1; i <= n; i++) {
              arr[i] = scanner.nextLong();
              inc &= arr[i] > arr[i-1];
          }
          if (n % 2 == 0 || !inc) {
              System.out.println("YES");
              return;
          }
          System.out.println("NO");
      }
  
  
      static boolean solve(Set<Integer> parent, Set<Integer> visited, int current, List<Integer>[] adj, int[] res) {
          if (!parent.contains(current) && visited.contains(current)) return true;
          else if (visited.contains(current)) return false;
          visited.add(current);
          parent.add(current);
          for (Integer to : adj[current]) {
              res[to] = current;
              boolean result = solve(parent, visited, to, adj, res);
              if (result) return true;
              else res[to] = -1;
          }
          return false;
      }
  
      static boolean isItOutside(int i, int j, int[][] grid) {
          return i < 0 || j < 0 || i >= grid.length || j >= grid[0].length;
      }
  
      static boolean isItOutside(int i, int j, char[][] grid) {
          return i < 0 || j < 0 || i >= grid.length || j >= grid[0].length;
      }
  
      static int __gcd(int a, int b) {
          return b == 0 ? a : __gcd(b, a % b);
      }
  
      static int gcdOfArray(int[] arr, int idx) {
          if (idx == arr.length - 1) {
              return arr[idx];
          }
          int a = arr[idx];
          int b = gcdOfArray(arr, idx + 1);
          return __gcd(
                  a, b);
      }
  
      public static long getManhattanDistance(long x1, long y1, long x2, long y2) {
          return Math.abs(x1 - x2) + Math.abs(y1 - y2);
      }
  
      static long lcm(long a, long b) {
          return (a / gcd(a, b)) * b;
      }
  
      static void swap(int[][] arr, int l, int r) {
          int[] temp = arr[l];
          arr[l] = arr[r];
          arr[r] = temp;
      }
  
      static void swap(int[] arr, int l, int r) {
          int temp = arr[l];
          arr[l] = arr[r];
          arr[r] = temp;
      }
  
      static void swap(long[] arr, int l, int r) {
          long temp = arr[l];
          arr[l] = arr[r];
          arr[r] = temp;
      }
  
      private static int getTickSize(char[][] mat, int i, int j) {
          if (i < 0 || j < 0 || i >= mat.length || j >= mat[0].length || mat[i][j] == '.') return 0;
          mat[i][j] = '.';
          return Math.min(getTickSize(mat, i - 1, j - 1), getTickSize(mat, i - 1, j + 1));
      }
  
      private static Boolean isSquare(long x) {
          long y = (long) Math.sqrt(x);
          return y * y == x;
      }
  
      private static int getMax(int[] arr) {
          int[] copy = Arrays.copyOf(arr, arr.length);
          Arrays.sort(copy);
          return copy[arr.length - 1];
      }
  
      private static double customLog(double logNumber, double base) {
          return Math.log(logNumber) / Math.log(base);
      }
  
  
      static int checkSim(String n1, String n2, int i, int j) {
          if (i >= n1.length() || j >= n2.length()) return 0;
          if (n1.charAt(i) == n2.charAt(j)) return 1 + checkSim(n1, n2, i + 1, j + 1);
          return checkSim(n1, n2, i + 1, j);
      }
  
      static int computeXOR(int n) {
          if (n % 4 == 0)
              return n;
          if (n % 4 == 1)
              return 1;
          if (n % 4 == 2)
              return n + 1;
          return 0;
      }
  
      static boolean isPowerOfTwo(long n) {
          if (n == 0)
              return false;
  
          double v = Math.log(n) / Math.log(2);
          return (long) (Math.ceil(v)) == (long) (Math.floor(v));
      }
  
      static boolean isPrime(long n) {
          if (n <= 1)
              return false;
  
          else if (n == 2)
              return true;
  
          else if (n % 2 == 0)
              return false;
  
          for (int i = 3; i <= Math.sqrt(n); i += 2) {
              if (n % i == 0)
                  return false;
          }
          return true;
      }
  
      static boolean isPrime(int n) {
          if (n <= 1)
              return false;
  
          else if (n == 2)
              return true;
  
          else if (n % 2 == 0)
              return false;
  
          for (int i = 3; i <= Math.sqrt(n); i += 2) {
              if (n % i == 0)
                  return false;
          }
          return true;
      }
  
      static boolean checkSorted(int[] arr) {
          return arr[0] == arr[arr.length - 1];
      }
  
      static void print(int from, int to) {
          if (from <= to) {
              for (int i = from; i <= to; i++) {
                  System.out.print(i + " ");
              }
          } else {
              System.out.print(from + " ");
              for (int i = 1; i <= to; i++) {
                  System.out.print(i + " ");
              }
          }
      }
  
      static long moduloMultiplication(long a, long b, long mod) {
          long res = 0;
          a %= mod;
          while (b > 0) {
              if ((b & 1) > 0) {
                  res = (res + a) % mod;
              }
              a = (2 * a) % mod;
              b >>= 1;
          }
          return res;
      }
  
      static long moduloPower(long x, long y, long p) {
          long res = 1L;
          x = x % p;
          while (y > 0) {
              if ((y & 1) > 0)
                  res = (res * x) % p;
  
              y = y >> 1;
              x = (x * x) % p;
          }
          return res % p;
      }
  
      static int lowerBound(long a[], long x) { // x is the target value or key
          int l = -1, r = a.length;
          while (l + 1 < r) {
              int m = (l + r) >>> 1;
              if (a[m] >= x) r = m;
              else l = m;
          }
          return r;
      }
  
      static int upperBound(long a[], long x) {// x is the key or target value
          int l = -1, r = a.length;
          while (l + 1 < r) {
              int m = (l + r) >>> 1L;
              if (a[m] <= x) l = m;
              else r = m;
          }
          return l + 1;
      }
  
      static long upperBound(long[] arr, int start, int end, long k) {
          int N = end;
          while (start < end) {
              int mid = start + (end - start) / 2;
              if (k >= arr[mid]) {
                  start = mid + 1;
              } else {
                  end = mid;
              }
          }
          if (start < N && arr[start] <= k) {
              start++;
          }
          return start;
      }
  
      static long lowerBound(long[] arr, int start, int end, long k) {
          int N = end;
          while (start < end) {
              int mid = start + (end - start) / 2;
              if (k <= arr[mid]) {
                  end = mid;
              } else {
                  start = mid + 1;
              }
          }
          if (start < N && arr[start] < k) {
              start++;
          }
          return start;
      }
  
      static int getDistance(int x1, int y1, int x2, int y2) {
          return Math.abs(x1 - x2) + Math.abs(y1 - y2);
      }
  
      static int sumOfNNaturalNumbers(int n) {
          return (n * (n + 1)) / 2;
      }
  
      static long sumOfNNaturalNumbers(long n) {
          return (n * (n + 1)) / 2;
      }
  
      static int gcd(int a, int b) {
          if (b == 0)
              return a;
          return gcd(b, a % b);
      }
  
      static long gcd(long a, long b) {
          if (b == 0)
              return a;
          return gcd(b, a % b);
      }
  
      static class FastScanner {
          BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  //        {
  //            try {
  //                br = new BufferedReader(new InputStreamReader(new FileInputStream("C:\\Users\\shind\\IdeaProjects\\ds\\src\\main\\java\\codeforces\\input.txt")));
  //
  //            } catch (FileNotFoundException e) {
  //                e.printStackTrace();
  //            }
  //        }
  
          StringTokenizer st = new StringTokenizer("");
  
          String next() {
              while (!st.hasMoreTokens())
                  try {
                      st = new StringTokenizer(br.readLine());
                  } catch (IOException e) {
                      e.printStackTrace();
                  }
              return st.nextToken();
          }
  
          int nextInt() {
              return Integer.parseInt(next());
          }
  
          int[] readArray(int n) {
              int[] a = new int[n];
              for (int i = 0; i < n; i++) a[i] = nextInt();
              return a;
          }
  
          long nextLong() {
              return Long.parseLong(next());
          }
      }
  
      static class Reader {
          final private int BUFFER_SIZE = 1 << 16;
          private DataInputStream din;
          private byte[] buffer;
          private int bufferPointer, bytesRead;
  
          public Reader() {
              din = new DataInputStream(System.in);
              buffer = new byte[BUFFER_SIZE];
              bufferPointer = bytesRead = 0;
          }
  
          public Reader(String file_name) throws IOException {
              din = new DataInputStream(new FileInputStream(file_name));
              buffer = new byte[BUFFER_SIZE];
              bufferPointer = bytesRead = 0;
          }
  
          public String readLine() throws IOException {
              byte[] buf = new byte[64]; // line length
              int cnt = 0, c;
              while ((c = read()) != -1) {
                  if (c == '\n')
                      break;
                  buf[cnt++] = (byte) c;
              }
              return new String(buf, 0, cnt);
          }
  
          public int nextInt() throws IOException {
              int ret = 0;
              byte c = read();
              while (c <= ' ')
                  c = read();
              boolean neg = (c == '-');
              if (neg)
                  c = read();
              do {
                  ret = ret * 10 + c - '0';
              } while ((c = read()) >= '0' && c <= '9');
  
              if (neg)
                  return -ret;
              return ret;
          }
  
          public long nextLong() throws IOException {
              long ret = 0;
              byte c = read();
              while (c <= ' ')
                  c = read();
              boolean neg = (c == '-');
              if (neg)
                  c = read();
              do {
                  ret = ret * 10 + c - '0';
              }
              while ((c = read()) >= '0' && c <= '9');
              if (neg)
                  return -ret;
              return ret;
          }
  
          public double nextDouble() throws IOException {
              double ret = 0, div = 1;
              byte c = read();
              while (c <= ' ')
                  c = read();
              boolean neg = (c == '-');
              if (neg)
                  c = read();
  
              do {
                  ret = ret * 10 + c - '0';
              }
              while ((c = read()) >= '0' && c <= '9');
  
              if (c == '.') {
                  while ((c = read()) >= '0' && c <= '9') {
                      ret += (c - '0') / (div *= 10);
                  }
              }
  
              if (neg)
                  return -ret;
              return ret;
          }
  
          private void fillBuffer() throws IOException {
              bytesRead = din.read(buffer, bufferPointer = 0, BUFFER_SIZE);
              if (bytesRead == -1)
                  buffer[0] = -1;
          }
  
          private byte read() throws IOException {
              if (bufferPointer == bytesRead)
                  fillBuffer();
              return buffer[bufferPointer++];
          }
  
          public void close() throws IOException {
              if (din == null)
                  return;
              din.close();
          }
      }
  }