oj.uz

Submission #827658

# Submission time Handle Problem Language Result Execution time Memory
827658 2023-08-16T16:03:45 Z NeroZein Diversity (CEOI21_diversity) C++17
64 / 100
 7000 ms 6716 KB 
#include "bits/stdc++.h"
#define int long long
using namespace std;
 
#ifdef Nero
#include "Deb.h"
#else
#define deb(...)
#endif

const int B = 500;
const int N = 3e5 + 5;
 
int a[N]; 
int freq[N];
int tot_freq[N];
int cnt_freq[B + 1];
long long prop_ps[N];
vector<int> large_vals;
 
inline int64_t hilbertOrder(int x, int y, int pow, int rotate) {
  if (pow == 0) {
    return 0;
  }
  int hpow = 1 << (pow - 1);
  int seg = (x < hpow) ? ((y < hpow) ? 0 : 3) : ((y < hpow) ? 1 : 2);
  seg = (seg + rotate) & 3;
  const int rotateDelta[4] = {3, 0, 0, 1};
  int nx = x & (x ^ hpow), ny = y & (y ^ hpow);
  int nrot = (rotate + rotateDelta[seg]) & 3;
  int64_t subSquareSize = int64_t(1) << (2 * pow - 2);
  int64_t ans = seg * subSquareSize;
  int64_t add = hilbertOrder(nx, ny, pow - 1, nrot);
  ans += (seg == 1 || seg == 2) ? add : (subSquareSize - add - 1);
  return ans;
}
 
struct Query{
  int l, r, id; 
  int64_t ord;
  inline void calcOrder() {
    ord = hilbertOrder(l, r, 18, 0);
  }
};
 
inline bool operator<(const Query &x, const Query &y){
  return x.ord < y.ord;
}
 
void modify(int i, int v) {
  if (freq[a[i]] && tot_freq[a[i]] <= B) {
    cnt_freq[freq[a[i]]]--;
  }
  freq[a[i]] += v;
  if (freq[a[i]] && tot_freq[a[i]] <= B) {
    cnt_freq[freq[a[i]]]++;
  } 
}
 
vector<pair<int, int>> construct() {
  vector<pair<int, int>> left;
  vector<pair<int, int>> right;
  bool go_left = true;
  vector<pair<int, int>> xz;
  for (int i = 1; i <= B; ++i) {
    if (cnt_freq[i]) {
      xz.push_back({i, cnt_freq[i]}); 
    }
  }
  for (int i : large_vals) {
    if (freq[i]) {
      xz.push_back({freq[i], 1}); 
    }
  }
  sort(xz.begin(), xz.end());
  for (auto [i, z] : xz) {
    int x = z / 2;
    int y = z - x;
    if ((x + y) % 2 == 0) {
      left.push_back({i, x});
      right.push_back({i, x});
    } else {
      if (go_left) {
        left.push_back({i, y});
        if (x) {
          right.push_back({i, x});    
        }
      } else {
        if (x) {
          left.push_back({i, x});     
        }
        right.push_back({i, y}); 
      }
      go_left ^= 1;
    }
  }
  vector<pair<int, int>> ret = left; 
  reverse(right.begin(), right.end()); 
  for (auto [x, y] : right) {
    if (ret.back().first == x) {
      ret.back().second += y;
    } else {
      ret.push_back({x, y});      
    }
  }
  return ret;
}
 
long long prop(int x) {
  return (long long) x * (x + 1) / 2; 
}
 
long long get(vector<pair<int, int>> v) {
  long long last = 0;
  long long ret = 0; 
  long long without = 0; 
  long long normal_sum = 0;
  long long times_freq_sum = 0; 
  for (int i = (int) v.size() - 1; i >= 0; --i) {
    long long tmp = 0; 
    auto [element_freq, rep] = v[i];
    long long z = rep - 1; 
    tmp += element_freq * z * (z + 1) * (z + 2) / 6 * element_freq;
    tmp += last * element_freq * rep; 
    tmp += normal_sum * element_freq * rep * (rep + 1) / 2;
    last = (rep - 1) * rep / 2 * element_freq + last + normal_sum * rep;
    ret += tmp; 
    times_freq_sum += without * rep + prop(rep) * element_freq; 
    without += prop(rep) * element_freq;
    normal_sum += v[i].first * v[i].second; 
  }
  ret += prop(normal_sum); 
  return ret;
}
 
signed main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n, q;
  cin >> n >> q;
  for (int i = 0; i < n; ++i) {
    cin >> a[i];
    tot_freq[a[i]]++; 
  }
  for (int i = 1; i < N; ++i) {
    if (tot_freq[i] > B) {
      large_vals.push_back(i); 
    }
  }
  vector<Query> qs(q); 
  for (int i = 0; i < q; ++i) {
    int l, r;
    cin >> l >> r;
    --l, --r;
    qs[i].l = l, qs[i].r = r;
    qs[i].id = i;
    qs[i].calcOrder(); 
  }
  vector<long long> ans(q); 
  int l = 0, r = -1; 
  for (auto &pq : qs) {
    int ql = pq.l, qr = pq.r, id = pq.id;
    while (l > ql) modify(--l, 1);
    while (r < qr) modify(++r, 1);
    while (l < ql) modify(l++, -1);
    while (r > qr) modify(r--, -1); 
    vector<pair<int, int>> v = construct(); 
    ans[id] = get(v);
  }
  for (int i = 0; i < q; ++i) {
    cout << ans[i] << '\n';
  }
  return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 5 ms 1108 KB Output is correct
5 Correct 9 ms 1876 KB Output is correct
6 Correct 16 ms 2672 KB Output is correct
7 Correct 16 ms 2656 KB Output is correct
8 Correct 14 ms 2644 KB Output is correct
9 Correct 13 ms 2644 KB Output is correct
10 Correct 17 ms 2644 KB Output is correct
11 Correct 14 ms 2644 KB Output is correct
12 Correct 14 ms 2576 KB Output is correct
13 Correct 18 ms 2676 KB Output is correct
14 Correct 14 ms 2684 KB Output is correct
15 Correct 19 ms 2676 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 5 ms 1108 KB Output is correct
5 Correct 9 ms 1876 KB Output is correct
6 Correct 16 ms 2672 KB Output is correct
7 Correct 16 ms 2656 KB Output is correct
8 Correct 14 ms 2644 KB Output is correct
9 Correct 13 ms 2644 KB Output is correct
10 Correct 17 ms 2644 KB Output is correct
11 Correct 14 ms 2644 KB Output is correct
12 Correct 14 ms 2576 KB Output is correct
13 Correct 18 ms 2676 KB Output is correct
14 Correct 14 ms 2684 KB Output is correct
15 Correct 19 ms 2676 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 5 ms 1108 KB Output is correct
20 Correct 14 ms 1872 KB Output is correct
21 Correct 14 ms 2636 KB Output is correct
22 Correct 14 ms 2696 KB Output is correct
23 Correct 14 ms 2656 KB Output is correct
24 Correct 14 ms 2596 KB Output is correct
25 Correct 15 ms 2668 KB Output is correct
26 Correct 15 ms 2596 KB Output is correct
27 Correct 14 ms 2700 KB Output is correct
28 Correct 15 ms 2688 KB Output is correct
29 Correct 14 ms 2644 KB Output is correct
30 Correct 14 ms 2644 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 5 ms 1108 KB Output is correct
5 Correct 9 ms 1876 KB Output is correct
6 Correct 16 ms 2672 KB Output is correct
7 Correct 16 ms 2656 KB Output is correct
8 Correct 14 ms 2644 KB Output is correct
9 Correct 13 ms 2644 KB Output is correct
10 Correct 17 ms 2644 KB Output is correct
11 Correct 14 ms 2644 KB Output is correct
12 Correct 14 ms 2576 KB Output is correct
13 Correct 18 ms 2676 KB Output is correct
14 Correct 14 ms 2684 KB Output is correct
15 Correct 19 ms 2676 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 5 ms 1108 KB Output is correct
20 Correct 14 ms 1872 KB Output is correct
21 Correct 14 ms 2636 KB Output is correct
22 Correct 14 ms 2696 KB Output is correct
23 Correct 14 ms 2656 KB Output is correct
24 Correct 14 ms 2596 KB Output is correct
25 Correct 15 ms 2668 KB Output is correct
26 Correct 15 ms 2596 KB Output is correct
27 Correct 14 ms 2700 KB Output is correct
28 Correct 15 ms 2688 KB Output is correct
29 Correct 14 ms 2644 KB Output is correct
30 Correct 14 ms 2644 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 3 ms 724 KB Output is correct
38 Correct 3 ms 724 KB Output is correct
39 Correct 6 ms 1080 KB Output is correct
40 Correct 12 ms 1932 KB Output is correct
41 Correct 17 ms 2712 KB Output is correct
42 Correct 22 ms 2644 KB Output is correct
43 Correct 18 ms 2772 KB Output is correct
44 Correct 19 ms 2748 KB Output is correct
45 Correct 17 ms 2720 KB Output is correct
46 Correct 17 ms 2772 KB Output is correct
47 Correct 17 ms 2748 KB Output is correct
48 Correct 17 ms 2772 KB Output is correct
49 Correct 17 ms 2736 KB Output is correct
50 Correct 17 ms 2740 KB Output is correct
51 Correct 17 ms 2772 KB Output is correct
52 Correct 18 ms 2732 KB Output is correct
53 Correct 17 ms 2764 KB Output is correct
54 Correct 17 ms 2744 KB Output is correct
55 Correct 21 ms 2900 KB Output is correct
56 Correct 17 ms 2724 KB Output is correct
57 Correct 17 ms 2712 KB Output is correct
58 Correct 17 ms 2664 KB Output is correct
59 Correct 17 ms 2692 KB Output is correct
60 Correct 17 ms 2720 KB Output is correct

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 5 ms 1108 KB Output is correct
15 Correct 9 ms 1876 KB Output is correct
16 Correct 16 ms 2672 KB Output is correct
17 Correct 16 ms 2656 KB Output is correct
18 Correct 14 ms 2644 KB Output is correct
19 Correct 13 ms 2644 KB Output is correct
20 Correct 17 ms 2644 KB Output is correct
21 Correct 14 ms 2644 KB Output is correct
22 Correct 14 ms 2576 KB Output is correct
23 Correct 18 ms 2676 KB Output is correct
24 Correct 14 ms 2684 KB Output is correct
25 Correct 19 ms 2676 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 5 ms 1108 KB Output is correct
30 Correct 14 ms 1872 KB Output is correct
31 Correct 14 ms 2636 KB Output is correct
32 Correct 14 ms 2696 KB Output is correct
33 Correct 14 ms 2656 KB Output is correct
34 Correct 14 ms 2596 KB Output is correct
35 Correct 15 ms 2668 KB Output is correct
36 Correct 15 ms 2596 KB Output is correct
37 Correct 14 ms 2700 KB Output is correct
38 Correct 15 ms 2688 KB Output is correct
39 Correct 14 ms 2644 KB Output is correct
40 Correct 14 ms 2644 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 3 ms 724 KB Output is correct
48 Correct 3 ms 724 KB Output is correct
49 Correct 6 ms 1080 KB Output is correct
50 Correct 12 ms 1932 KB Output is correct
51 Correct 17 ms 2712 KB Output is correct
52 Correct 22 ms 2644 KB Output is correct
53 Correct 18 ms 2772 KB Output is correct
54 Correct 19 ms 2748 KB Output is correct
55 Correct 17 ms 2720 KB Output is correct
56 Correct 17 ms 2772 KB Output is correct
57 Correct 17 ms 2748 KB Output is correct
58 Correct 17 ms 2772 KB Output is correct
59 Correct 17 ms 2736 KB Output is correct
60 Correct 17 ms 2740 KB Output is correct
61 Correct 17 ms 2772 KB Output is correct
62 Correct 18 ms 2732 KB Output is correct
63 Correct 17 ms 2764 KB Output is correct
64 Correct 17 ms 2744 KB Output is correct
65 Correct 21 ms 2900 KB Output is correct
66 Correct 17 ms 2724 KB Output is correct
67 Correct 17 ms 2712 KB Output is correct
68 Correct 17 ms 2664 KB Output is correct
69 Correct 17 ms 2692 KB Output is correct
70 Correct 17 ms 2720 KB Output is correct
71 Correct 3 ms 724 KB Output is correct
72 Correct 4 ms 752 KB Output is correct
73 Correct 3 ms 724 KB Output is correct
74 Correct 4 ms 724 KB Output is correct
75 Correct 3 ms 724 KB Output is correct
76 Correct 6 ms 1108 KB Output is correct
77 Correct 6 ms 1108 KB Output is correct
78 Correct 6 ms 1108 KB Output is correct
79 Correct 6 ms 1236 KB Output is correct
80 Correct 6 ms 1108 KB Output is correct
81 Correct 12 ms 2004 KB Output is correct
82 Correct 12 ms 2004 KB Output is correct
83 Correct 13 ms 2060 KB Output is correct
84 Correct 12 ms 2064 KB Output is correct
85 Correct 12 ms 2008 KB Output is correct
86 Correct 13 ms 2132 KB Output is correct
87 Correct 13 ms 2132 KB Output is correct
88 Correct 13 ms 2132 KB Output is correct
89 Correct 16 ms 2116 KB Output is correct
90 Correct 19 ms 2124 KB Output is correct
91 Correct 21 ms 4168 KB Output is correct
92 Correct 22 ms 4256 KB Output is correct
93 Correct 21 ms 4144 KB Output is correct
94 Correct 21 ms 4180 KB Output is correct
95 Correct 21 ms 4180 KB Output is correct
96 Correct 26 ms 5684 KB Output is correct
97 Correct 27 ms 5716 KB Output is correct
98 Correct 25 ms 5796 KB Output is correct
99 Correct 30 ms 5792 KB Output is correct
100 Correct 25 ms 5800 KB Output is correct
101 Correct 25 ms 5712 KB Output is correct
102 Correct 25 ms 5780 KB Output is correct
103 Correct 26 ms 5712 KB Output is correct
104 Correct 24 ms 5716 KB Output is correct
105 Correct 24 ms 5708 KB Output is correct
106 Correct 25 ms 6488 KB Output is correct
107 Correct 24 ms 6548 KB Output is correct
108 Correct 26 ms 6584 KB Output is correct
109 Correct 30 ms 6524 KB Output is correct
110 Correct 26 ms 6556 KB Output is correct
111 Correct 31 ms 6484 KB Output is correct
112 Correct 35 ms 6716 KB Output is correct
113 Correct 33 ms 6528 KB Output is correct
114 Correct 27 ms 6528 KB Output is correct
115 Correct 25 ms 6568 KB Output is correct

Subtask #6
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 5 ms 1108 KB Output is correct
15 Correct 9 ms 1876 KB Output is correct
16 Correct 16 ms 2672 KB Output is correct
17 Correct 16 ms 2656 KB Output is correct
18 Correct 14 ms 2644 KB Output is correct
19 Correct 13 ms 2644 KB Output is correct
20 Correct 17 ms 2644 KB Output is correct
21 Correct 14 ms 2644 KB Output is correct
22 Correct 14 ms 2576 KB Output is correct
23 Correct 18 ms 2676 KB Output is correct
24 Correct 14 ms 2684 KB Output is correct
25 Correct 19 ms 2676 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 5 ms 1108 KB Output is correct
30 Correct 14 ms 1872 KB Output is correct
31 Correct 14 ms 2636 KB Output is correct
32 Correct 14 ms 2696 KB Output is correct
33 Correct 14 ms 2656 KB Output is correct
34 Correct 14 ms 2596 KB Output is correct
35 Correct 15 ms 2668 KB Output is correct
36 Correct 15 ms 2596 KB Output is correct
37 Correct 14 ms 2700 KB Output is correct
38 Correct 15 ms 2688 KB Output is correct
39 Correct 14 ms 2644 KB Output is correct
40 Correct 14 ms 2644 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 3 ms 724 KB Output is correct
48 Correct 3 ms 724 KB Output is correct
49 Correct 6 ms 1080 KB Output is correct
50 Correct 12 ms 1932 KB Output is correct
51 Correct 17 ms 2712 KB Output is correct
52 Correct 22 ms 2644 KB Output is correct
53 Correct 18 ms 2772 KB Output is correct
54 Correct 19 ms 2748 KB Output is correct
55 Correct 17 ms 2720 KB Output is correct
56 Correct 17 ms 2772 KB Output is correct
57 Correct 17 ms 2748 KB Output is correct
58 Correct 17 ms 2772 KB Output is correct
59 Correct 17 ms 2736 KB Output is correct
60 Correct 17 ms 2740 KB Output is correct
61 Correct 17 ms 2772 KB Output is correct
62 Correct 18 ms 2732 KB Output is correct
63 Correct 17 ms 2764 KB Output is correct
64 Correct 17 ms 2744 KB Output is correct
65 Correct 21 ms 2900 KB Output is correct
66 Correct 17 ms 2724 KB Output is correct
67 Correct 17 ms 2712 KB Output is correct
68 Correct 17 ms 2664 KB Output is correct
69 Correct 17 ms 2692 KB Output is correct
70 Correct 17 ms 2720 KB Output is correct
71 Correct 3 ms 724 KB Output is correct
72 Correct 4 ms 752 KB Output is correct
73 Correct 3 ms 724 KB Output is correct
74 Correct 4 ms 724 KB Output is correct
75 Correct 3 ms 724 KB Output is correct
76 Correct 6 ms 1108 KB Output is correct
77 Correct 6 ms 1108 KB Output is correct
78 Correct 6 ms 1108 KB Output is correct
79 Correct 6 ms 1236 KB Output is correct
80 Correct 6 ms 1108 KB Output is correct
81 Correct 12 ms 2004 KB Output is correct
82 Correct 12 ms 2004 KB Output is correct
83 Correct 13 ms 2060 KB Output is correct
84 Correct 12 ms 2064 KB Output is correct
85 Correct 12 ms 2008 KB Output is correct
86 Correct 13 ms 2132 KB Output is correct
87 Correct 13 ms 2132 KB Output is correct
88 Correct 13 ms 2132 KB Output is correct
89 Correct 16 ms 2116 KB Output is correct
90 Correct 19 ms 2124 KB Output is correct
91 Correct 21 ms 4168 KB Output is correct
92 Correct 22 ms 4256 KB Output is correct
93 Correct 21 ms 4144 KB Output is correct
94 Correct 21 ms 4180 KB Output is correct
95 Correct 21 ms 4180 KB Output is correct
96 Correct 26 ms 5684 KB Output is correct
97 Correct 27 ms 5716 KB Output is correct
98 Correct 25 ms 5796 KB Output is correct
99 Correct 30 ms 5792 KB Output is correct
100 Correct 25 ms 5800 KB Output is correct
101 Correct 25 ms 5712 KB Output is correct
102 Correct 25 ms 5780 KB Output is correct
103 Correct 26 ms 5712 KB Output is correct
104 Correct 24 ms 5716 KB Output is correct
105 Correct 24 ms 5708 KB Output is correct
106 Correct 25 ms 6488 KB Output is correct
107 Correct 24 ms 6548 KB Output is correct
108 Correct 26 ms 6584 KB Output is correct
109 Correct 30 ms 6524 KB Output is correct
110 Correct 26 ms 6556 KB Output is correct
111 Correct 31 ms 6484 KB Output is correct
112 Correct 35 ms 6716 KB Output is correct
113 Correct 33 ms 6528 KB Output is correct
114 Correct 27 ms 6528 KB Output is correct
115 Correct 25 ms 6568 KB Output is correct
116 Correct 1543 ms 2800 KB Output is correct
117 Correct 849 ms 2828 KB Output is correct
118 Correct 6784 ms 3248 KB Output is correct
119 Correct 3996 ms 4016 KB Output is correct
120 Correct 3654 ms 4064 KB Output is correct
121 Execution timed out 7043 ms 4156 KB Time limit exceeded
122 Halted 0 ms 0 KB -