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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. using u32 = unsigned int;
  5.  
  6. const int N = 5e7;
  7.  
  8. int n;
  9. u32 seed, a[N];
  10.  
  11. inline u32 input(u32 x) {
  12. 	x ^= x << 13;
  13.     x ^= x >> 17;
  14.     x ^= x << 5;
  15.     return x;
  16. }
  17.  
  18. void output() {
  19.     u32 re = n;
  20.     u32 x = 23333333;
  21.     for (u32 i = 0; i < n; i++) {
  22.         re = re ^ (a[i] + x);
  23.         x ^= x << 13;
  24.         x ^= x >> 17;
  25.         x ^= x << 5;
  26.     }
  27.     cout << re << '\n';
  28. }
  29.  
  30. void solve() {
  31. 	cin >> n >> seed;
  32. 	for (int i = 0; i < n; i++) {
  33. 		seed = input(seed);
  34. 		a[i] = seed;
  35. 	}
  36. 	sort(a, a + n);
  37. 	output();
  38. }
  39.  
  40. int main() {
  41.     solve();
  42.     return 0;
  43. }
Success #stdin #stdout 0.01s 5396KB
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https://ideone.com/bU0upp
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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