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  1. import java.io.*;
  2. import java.util.*;
  3. import java.math.*;
  4.  
  5. import static java.lang.Math.*;
  6. import static java.lang.Character.*;
  7. import static java.util.Arrays.*;
  8. import static java.util.Collections.*;
  9. import static java.math.BigInteger.*;
  10.  
  11. class C {
  12. 	static final char PROB = C.class.getSimpleName().charAt(0);
  13. 	static final boolean PRAC = false;
  14.  
  15. 	static final int INF = 1 << 20;
  16. 	static final int[] di = { -1, 0, 0, 1 };
  17. 	static final int[] dj = { 0, -1, 1, 0 };
  18. 	static Scanner sc = new Scanner(System.in);
  19.  
  20. 	final int N;
  21. 	final int[] c;
  22.  
  23. 	public C() {
  24. 		N = sc.nextInt();
  25. 		c = new int[N];
  26. 		for(int i = 0; i < N; i++)
  27. 			c[i] = sc.nextInt();
  28. 	}
  29.  
  30. 	public String solve() {
  31. 		int min = Integer.MAX_VALUE;
  32. 		int sum = 0;
  33. 		int xor = 0;
  34. 		for(int i = 0; i < N; i++) {
  35. 			min = min(min, c[i]);
  36. 			sum += c[i];
  37. 			xor ^= c[i];
  38. 		}
  39. 		return xor == 0 ? "" + (sum - min) : "NO";
  40. 	}
  41.  
  42. 	public static void main(String... args) {
  43. 		// large();
  44. 		int T = Integer.parseInt(sc.nextLine());
  45. 		for (int t = 1; t <= T; t++) {
  46. 			System.err.printf("Case #%s%n", t);
  47. 			System.out.printf("Case #%s: %s%n", t, new C().solve());
  48. 		}
  49. 		System.err.println("done.");
  50. 	}
  51.  
  52. 	public static void small() {
  53. 		String in = PROB + "-small" + (PRAC ? "-practice" : "-attempt" + 0) + ".in";
  54. 		String out = PROB + "-small.out";
  55. 		try {
  56. 			if (!PRAC)
  57. 				for (int i = 1; new File(PROB + "-small" + "-attempt" + i + ".in").exists(); i++)
  58. 					in = PROB + "-small" + "-attempt" + i + ".in";
  59. 			System.setIn(new BufferedInputStream(new FileInputStream(in)));
  60. 			System.setOut(new PrintStream(out));
  61. 		} catch (Exception e) {
  62. 			e.printStackTrace();
  63. 			System.exit(0);
  64. 		}
  65. 		sc = new Scanner(System.in);
  66. 	}
  67.  
  68. 	public static void large() {
  69. 		String in = PROB + "-large" + (PRAC ? "-practice" : "") + ".in";
  70. 		String out = PROB + "-large.out";
  71. 		try {
  72. 			System.setIn(new BufferedInputStream(new FileInputStream(in)));
  73. 			System.setOut(new PrintStream(out));
  74. 		} catch (Exception e) {
  75. 			e.printStackTrace();
  76. 			System.exit(0);
  77. 		}
  78. 		sc = new Scanner(System.in);
  79. 	}
  80.  
  81. 	private static void debug(Object... os) {
  82. 		System.err.println(deepToString(os));
  83. 	}
  84. }
  85.  
Success #stdin #stdout 0.08s 213888KB
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stdout
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Case #1: NO
Case #2: 11
https://ideone.com/qbqYH
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

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