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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. #define pep_Guardiola        \
  4.     ios::sync_with_stdio(0); \
  5.     cin.tie(0);              \
  6.     cout.tie(0);
  7. using namespace std;
  8. // #define int ll
  9.  
  10. void io()
  11. {
  12. #ifndef ONLINE_JUDGE
  13.     freopen("input.txt", "r", stdin);
  14. #endif
  15. }
  16. const int N = 1e6 + 7;
  17.  
  18. void Guardiola()
  19. {
  20.     int n, q;
  21.     cin >> n >> q;
  22.     vector<int> a(n), freq(N, 0), bits(20);
  23.  
  24.     for (int i = 0; i < n; i++)
  25.     {
  26.         cin >> a[i];
  27.         freq[a[i]]++;
  28.         int msb = log2(a[i]);
  29.         bits[msb]++;
  30.     }
  31.     while (q--)
  32.     {
  33.         char type;
  34.         cin >> type;
  35.         if (type == 'U')
  36.         {
  37.             int i, v;
  38.             cin >> i >> v;
  39.             i--;
  40.             freq[a[i]]--;
  41.             int b = log2(a[i]);
  42.             bits[b]--;
  43.             a[i] = v;
  44.             freq[v]++;
  45.             b = log2(v);
  46.             bits[b]++;
  47.         }
  48.         else if (type == '|')
  49.         {
  50.             int v;
  51.             cin >> v;
  52.             cout << freq[v] << '\n';
  53.         }
  54.         else if (type == '&')
  55.         {
  56.             int v;
  57.             cin >> v;
  58.             cout << n << '\n';
  59.         }
  60.         else
  61.         {
  62.             int v;
  63.             cin >> v;
  64.             int ms = log2(v);
  65.             cout << bits[ms] << '\n';
  66.         }
  67.     }
  68. }
  69.  
  70. signed main()
  71. {
  72.     pep_Guardiola;
  73.     io();
  74.     int t = 1;
  75.     // cin >> t;
  76.     while (t--)
  77.         Guardiola();
  78.  
  79.     return 0;
  80. }
Success #stdin #stdout 0.01s 7092KB
comments (?)
stdin 
5 5
6 12 7 15 7
| 7
^ 10
U 3 13
| 7
^ 10
stdout 
2
2
1
3
https://ideone.com/h9T0qw
language:
C++14 (gcc 8.3)
created:
7 days ago
visibility:
public

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