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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. //
  4. void process (void)
  5. {
  6.     int q, type;
  7.     long long l, r;
  8.     //
  9.     auto prefix = [](long long n) -> long long
  10.     {
  11.         int k = n % 4;
  12.         //
  13.         if (k == 0)
  14.             return n;
  15.         if (k == 1)
  16.             return 1;
  17.         if (k == 2)
  18.             return n + 1;
  19.         return 0;
  20.     };
  21.     auto even = [](long long n) -> long long
  22.     {
  23.         int k = n % 8;
  24.         //
  25.         if (k == 0)
  26.             return n;
  27.         if (k == 2)
  28.             return 2;
  29.         if (k == 4)
  30.             return n + 2;
  31.         return 0;
  32.     };
  33.     auto odd = [](long long n) -> long long
  34.     {
  35.         int k = n % 8;
  36.         //
  37.         if (k == 1)
  38.             return n;
  39.         if (k == 3)
  40.             return 2;
  41.         if (k == 5)
  42.             return n ^ 2;
  43.         return 0;
  44.     };
  45.     //
  46.     for (cin >> q; q--; cout << '\n')
  47.     {
  48.         cin >> type >> l >> r;
  49.         if (type == 1)
  50.             cout << (prefix(r) ^ prefix(l - 1));
  51.         else if (l % 2 == 0)
  52.             cout << (even(r) ^ even(l - 2));
  53.         else
  54.             cout << (odd(r) ^ odd(l - 2));
  55.     }
  56. }
  57. //
  58. signed main (void)
  59. {
  60.     ios_base::sync_with_stdio(false);
  61.     cin.tie(nullptr), cout.tie(nullptr);
  62.     process();
  63. }
  64.  
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/hlAsRG
language:
C++ (gcc 8.3)
created:
6 days ago
visibility:
public

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