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Submission #678231

# Submission time Handle Problem Language Result Execution time Memory
678231 2023-01-05T10:25:47 Z stanislavpolyn Diversity (CEOI21_diversity) C++17
64 / 100
 84 ms 7900 KB 
#include <bits/stdc++.h>

#define fr(i, a, b) for (int i = (a); i <= (b); ++i)
#define rf(i, a, b) for (int i = (a); i >= (b); --i)
#define fe(x, y) for (auto& x : y)

#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define mt make_tuple

#define all(x) (x).begin(), (x).end()
#define pw(x) (1LL << (x))
#define sz(x) (int)(x).size()

using namespace std;

mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());

//mt19937_64 rng(228);

#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template <typename T>
using oset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#define fbo find_by_order
#define ook order_of_key

template <typename T>
bool umn(T& a, T b) {
    return a > b ? a = b, 1 : 0;
}
template <typename T>
bool umx(T& a, T b) {
    return a < b ? a = b, 1 : 0;
}

using ll = long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
template <typename T>
using ve = vector<T>;

const int B = 560;

int calc(ve<int> a) {
    int ans = 0;
    fr (i, 0, sz(a) - 1) {
        set<int> s;
        fr (j, i, sz(a) - 1) {
            s.insert(a[j]);
            ans += sz(s);
        }
    }
    return ans;
}


ll calc2(ve<int> a) {
    int total = 0;
    fe (x, a) total += x;
    ll ans = 0;
    int toLeft = 0;
    ans += 1LL * sz(a) * total * (total + 1) / 2;
    fr (i, 0, sz(a) - 1) {
        int toRight = total - toLeft - a[i];
        ans -= 1LL * toLeft * (toLeft + 1) / 2;
        ans -= 1LL * toRight * (toRight + 1) / 2;
        toLeft += a[i];
    }
    return ans;
}

ll calc3(ve<pii> a) {
    assert(sz(a) <= 2 * B);
    int total = 0;
    int gr = 0;
    fe (x, a) {
        total += x.fi * x.se;
        gr += x.se;
    }
    ll ans = 0;

    ans += 1LL * gr * total * (total + 1) / 2;
    int toLeft = 0;
    fe (cur, a) {
        fr (j, 1, cur.se) {
            ans -= 1LL * toLeft * (toLeft + 1) / 2;
            toLeft += cur.fi;
        }
    }
    reverse(all(a));
    toLeft = 0;
    fe (cur, a) {
        fr (j, 1, cur.se) {
            ans -= 1LL * toLeft * (toLeft + 1) / 2;
            toLeft += cur.fi;
        }
    }
    return ans;
}

const int N = 3e5 + 5;

int n, q;
int a[N];

int cnt[N];

int rnd(int l, int r) {
    return rng() % (r - l + 1) + l;
}

ll solve(ve<int> a) {
    fe (x, a) cnt[x] = 0;

    fe (x, a) cnt[x]++;

    ve<pii> order;
    fe (x, a) {
        if (cnt[x]) {
            order.pb({cnt[x], x});
            cnt[x] = 0;
        }
    }
    sort(all(order));
    reverse(all(order));

    {
        ve<pii> st;
        fe (cur, order) {
            if (!sz(st) || cur.fi != st.back().fi) {
                st.pb({cur.fi, 1});
            } else {
                st.back().se++;
            }
        }
        deque<pii> d;
        bool who = 0;
        fe (x, st) {
            if (x.se > 1) {
                d.push_front({x.fi, x.se / 2});
                d.pb({x.fi, x.se / 2});
                x.se %= 2;
            }
            if (x.se) {
                if (who == 0) {
                    if (sz(d) && d.front().fi == x.fi) d.front().se++;
                    else d.push_front({x.fi, 1});
                } else {
                    if (sz(d) && d.back().fi == x.fi) d.back().se++;
                    else d.pb({x.fi, 1});
                }
                who ^= 1;
            }
        }

        ve<pii> v;
        fe (x, d) v.pb(x);

        return calc3(v);
    }
    assert(0);
//
//    deque<int> d;
//    bool who = 0;
//    fe (cur, order) {
//        if (who == 0) d.push_front(cur.fi);
//        else d.pb(cur.fi);
//        who ^= 1;
//    }
//    ve<int> v;
//    int now = 1;
//    fe (x, d) {
//        v.pb(x);
//    }
//    return calc2(v);
}



int main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#else
    ios::sync_with_stdio(0);
    cin.tie(0);
#endif



    cin >> n >> q;

    ve<int> v;
    fr (i, 1, n) {
        cin >> a[i];
        v.pb(a[i]);
    }

    sort(all(v));

    cout << solve(v) << "\n";


//    int mn = 1e9;
//    do {
//        umn(mn, calc(v));
//    } while (next_permutation(all(v)));
//
//    cout << solve(v) << " " << mn << "\n";
//
//    do {
//        if (calc(v) == mn) {
//            cout << "v: ";
//            fe (x, v) cout << x << " ";
//            cout << "\n";
//        }
//    } while (next_permutation(all(v)));


    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 8 ms 1620 KB Output is correct
5 Correct 17 ms 2824 KB Output is correct
6 Correct 25 ms 3988 KB Output is correct
7 Correct 26 ms 3972 KB Output is correct
8 Correct 27 ms 3888 KB Output is correct
9 Correct 26 ms 3976 KB Output is correct
10 Correct 26 ms 3980 KB Output is correct
11 Correct 25 ms 3988 KB Output is correct
12 Correct 27 ms 3984 KB Output is correct
13 Correct 25 ms 3916 KB Output is correct
14 Correct 28 ms 3948 KB Output is correct
15 Correct 24 ms 3980 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 8 ms 1620 KB Output is correct
5 Correct 17 ms 2824 KB Output is correct
6 Correct 25 ms 3988 KB Output is correct
7 Correct 26 ms 3972 KB Output is correct
8 Correct 27 ms 3888 KB Output is correct
9 Correct 26 ms 3976 KB Output is correct
10 Correct 26 ms 3980 KB Output is correct
11 Correct 25 ms 3988 KB Output is correct
12 Correct 27 ms 3984 KB Output is correct
13 Correct 25 ms 3916 KB Output is correct
14 Correct 28 ms 3948 KB Output is correct
15 Correct 24 ms 3980 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 9 ms 1620 KB Output is correct
20 Correct 19 ms 2816 KB Output is correct
21 Correct 28 ms 3956 KB Output is correct
22 Correct 30 ms 3980 KB Output is correct
23 Correct 28 ms 3904 KB Output is correct
24 Correct 27 ms 3908 KB Output is correct
25 Correct 29 ms 3872 KB Output is correct
26 Correct 28 ms 3964 KB Output is correct
27 Correct 28 ms 3900 KB Output is correct
28 Correct 26 ms 3988 KB Output is correct
29 Correct 29 ms 3916 KB Output is correct
30 Correct 27 ms 3908 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 8 ms 1620 KB Output is correct
5 Correct 17 ms 2824 KB Output is correct
6 Correct 25 ms 3988 KB Output is correct
7 Correct 26 ms 3972 KB Output is correct
8 Correct 27 ms 3888 KB Output is correct
9 Correct 26 ms 3976 KB Output is correct
10 Correct 26 ms 3980 KB Output is correct
11 Correct 25 ms 3988 KB Output is correct
12 Correct 27 ms 3984 KB Output is correct
13 Correct 25 ms 3916 KB Output is correct
14 Correct 28 ms 3948 KB Output is correct
15 Correct 24 ms 3980 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 9 ms 1620 KB Output is correct
20 Correct 19 ms 2816 KB Output is correct
21 Correct 28 ms 3956 KB Output is correct
22 Correct 30 ms 3980 KB Output is correct
23 Correct 28 ms 3904 KB Output is correct
24 Correct 27 ms 3908 KB Output is correct
25 Correct 29 ms 3872 KB Output is correct
26 Correct 28 ms 3964 KB Output is correct
27 Correct 28 ms 3900 KB Output is correct
28 Correct 26 ms 3988 KB Output is correct
29 Correct 29 ms 3916 KB Output is correct
30 Correct 27 ms 3908 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 2 ms 468 KB Output is correct
37 Correct 6 ms 1052 KB Output is correct
38 Correct 7 ms 984 KB Output is correct
39 Correct 12 ms 1620 KB Output is correct
40 Correct 22 ms 2816 KB Output is correct
41 Correct 35 ms 3872 KB Output is correct
42 Correct 34 ms 3984 KB Output is correct
43 Correct 35 ms 3976 KB Output is correct
44 Correct 34 ms 3960 KB Output is correct
45 Correct 34 ms 3980 KB Output is correct
46 Correct 34 ms 3916 KB Output is correct
47 Correct 34 ms 3984 KB Output is correct
48 Correct 33 ms 3960 KB Output is correct
49 Correct 34 ms 3976 KB Output is correct
50 Correct 34 ms 3968 KB Output is correct
51 Correct 34 ms 3916 KB Output is correct
52 Correct 34 ms 3956 KB Output is correct
53 Correct 36 ms 3956 KB Output is correct
54 Correct 35 ms 3976 KB Output is correct
55 Correct 38 ms 3916 KB Output is correct
56 Correct 34 ms 3908 KB Output is correct
57 Correct 34 ms 3976 KB Output is correct
58 Correct 36 ms 3932 KB Output is correct
59 Correct 35 ms 3964 KB Output is correct
60 Correct 34 ms 3908 KB Output is correct

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 8 ms 1620 KB Output is correct
15 Correct 17 ms 2824 KB Output is correct
16 Correct 25 ms 3988 KB Output is correct
17 Correct 26 ms 3972 KB Output is correct
18 Correct 27 ms 3888 KB Output is correct
19 Correct 26 ms 3976 KB Output is correct
20 Correct 26 ms 3980 KB Output is correct
21 Correct 25 ms 3988 KB Output is correct
22 Correct 27 ms 3984 KB Output is correct
23 Correct 25 ms 3916 KB Output is correct
24 Correct 28 ms 3948 KB Output is correct
25 Correct 24 ms 3980 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 9 ms 1620 KB Output is correct
30 Correct 19 ms 2816 KB Output is correct
31 Correct 28 ms 3956 KB Output is correct
32 Correct 30 ms 3980 KB Output is correct
33 Correct 28 ms 3904 KB Output is correct
34 Correct 27 ms 3908 KB Output is correct
35 Correct 29 ms 3872 KB Output is correct
36 Correct 28 ms 3964 KB Output is correct
37 Correct 28 ms 3900 KB Output is correct
38 Correct 26 ms 3988 KB Output is correct
39 Correct 29 ms 3916 KB Output is correct
40 Correct 27 ms 3908 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 0 ms 340 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 2 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 2 ms 468 KB Output is correct
47 Correct 6 ms 1052 KB Output is correct
48 Correct 7 ms 984 KB Output is correct
49 Correct 12 ms 1620 KB Output is correct
50 Correct 22 ms 2816 KB Output is correct
51 Correct 35 ms 3872 KB Output is correct
52 Correct 34 ms 3984 KB Output is correct
53 Correct 35 ms 3976 KB Output is correct
54 Correct 34 ms 3960 KB Output is correct
55 Correct 34 ms 3980 KB Output is correct
56 Correct 34 ms 3916 KB Output is correct
57 Correct 34 ms 3984 KB Output is correct
58 Correct 33 ms 3960 KB Output is correct
59 Correct 34 ms 3976 KB Output is correct
60 Correct 34 ms 3968 KB Output is correct
61 Correct 34 ms 3916 KB Output is correct
62 Correct 34 ms 3956 KB Output is correct
63 Correct 36 ms 3956 KB Output is correct
64 Correct 35 ms 3976 KB Output is correct
65 Correct 38 ms 3916 KB Output is correct
66 Correct 34 ms 3908 KB Output is correct
67 Correct 34 ms 3976 KB Output is correct
68 Correct 36 ms 3932 KB Output is correct
69 Correct 35 ms 3964 KB Output is correct
70 Correct 34 ms 3908 KB Output is correct
71 Correct 7 ms 984 KB Output is correct
72 Correct 7 ms 984 KB Output is correct
73 Correct 7 ms 984 KB Output is correct
74 Correct 7 ms 984 KB Output is correct
75 Correct 7 ms 1008 KB Output is correct
76 Correct 14 ms 1620 KB Output is correct
77 Correct 14 ms 1620 KB Output is correct
78 Correct 16 ms 1788 KB Output is correct
79 Correct 14 ms 1656 KB Output is correct
80 Correct 15 ms 1620 KB Output is correct
81 Correct 29 ms 2936 KB Output is correct
82 Correct 27 ms 2824 KB Output is correct
83 Correct 28 ms 2808 KB Output is correct
84 Correct 27 ms 2944 KB Output is correct
85 Correct 27 ms 2856 KB Output is correct
86 Correct 32 ms 3064 KB Output is correct
87 Correct 37 ms 3052 KB Output is correct
88 Correct 37 ms 3148 KB Output is correct
89 Correct 34 ms 3156 KB Output is correct
90 Correct 31 ms 3176 KB Output is correct
91 Correct 57 ms 6044 KB Output is correct
92 Correct 55 ms 6008 KB Output is correct
93 Correct 56 ms 6016 KB Output is correct
94 Correct 57 ms 6000 KB Output is correct
95 Correct 55 ms 5948 KB Output is correct
96 Correct 68 ms 7896 KB Output is correct
97 Correct 66 ms 7680 KB Output is correct
98 Correct 70 ms 7676 KB Output is correct
99 Correct 65 ms 7684 KB Output is correct
100 Correct 68 ms 7688 KB Output is correct
101 Correct 70 ms 7688 KB Output is correct
102 Correct 67 ms 7692 KB Output is correct
103 Correct 71 ms 7660 KB Output is correct
104 Correct 67 ms 7584 KB Output is correct
105 Correct 65 ms 7588 KB Output is correct
106 Correct 66 ms 7796 KB Output is correct
107 Correct 84 ms 7796 KB Output is correct
108 Correct 66 ms 7812 KB Output is correct
109 Correct 65 ms 7820 KB Output is correct
110 Correct 65 ms 7800 KB Output is correct
111 Correct 69 ms 7796 KB Output is correct
112 Correct 70 ms 7804 KB Output is correct
113 Correct 67 ms 7804 KB Output is correct
114 Correct 70 ms 7872 KB Output is correct
115 Correct 66 ms 7900 KB Output is correct

Subtask #6
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 8 ms 1620 KB Output is correct
15 Correct 17 ms 2824 KB Output is correct
16 Correct 25 ms 3988 KB Output is correct
17 Correct 26 ms 3972 KB Output is correct
18 Correct 27 ms 3888 KB Output is correct
19 Correct 26 ms 3976 KB Output is correct
20 Correct 26 ms 3980 KB Output is correct
21 Correct 25 ms 3988 KB Output is correct
22 Correct 27 ms 3984 KB Output is correct
23 Correct 25 ms 3916 KB Output is correct
24 Correct 28 ms 3948 KB Output is correct
25 Correct 24 ms 3980 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 9 ms 1620 KB Output is correct
30 Correct 19 ms 2816 KB Output is correct
31 Correct 28 ms 3956 KB Output is correct
32 Correct 30 ms 3980 KB Output is correct
33 Correct 28 ms 3904 KB Output is correct
34 Correct 27 ms 3908 KB Output is correct
35 Correct 29 ms 3872 KB Output is correct
36 Correct 28 ms 3964 KB Output is correct
37 Correct 28 ms 3900 KB Output is correct
38 Correct 26 ms 3988 KB Output is correct
39 Correct 29 ms 3916 KB Output is correct
40 Correct 27 ms 3908 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 0 ms 340 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 2 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 2 ms 468 KB Output is correct
47 Correct 6 ms 1052 KB Output is correct
48 Correct 7 ms 984 KB Output is correct
49 Correct 12 ms 1620 KB Output is correct
50 Correct 22 ms 2816 KB Output is correct
51 Correct 35 ms 3872 KB Output is correct
52 Correct 34 ms 3984 KB Output is correct
53 Correct 35 ms 3976 KB Output is correct
54 Correct 34 ms 3960 KB Output is correct
55 Correct 34 ms 3980 KB Output is correct
56 Correct 34 ms 3916 KB Output is correct
57 Correct 34 ms 3984 KB Output is correct
58 Correct 33 ms 3960 KB Output is correct
59 Correct 34 ms 3976 KB Output is correct
60 Correct 34 ms 3968 KB Output is correct
61 Correct 34 ms 3916 KB Output is correct
62 Correct 34 ms 3956 KB Output is correct
63 Correct 36 ms 3956 KB Output is correct
64 Correct 35 ms 3976 KB Output is correct
65 Correct 38 ms 3916 KB Output is correct
66 Correct 34 ms 3908 KB Output is correct
67 Correct 34 ms 3976 KB Output is correct
68 Correct 36 ms 3932 KB Output is correct
69 Correct 35 ms 3964 KB Output is correct
70 Correct 34 ms 3908 KB Output is correct
71 Correct 7 ms 984 KB Output is correct
72 Correct 7 ms 984 KB Output is correct
73 Correct 7 ms 984 KB Output is correct
74 Correct 7 ms 984 KB Output is correct
75 Correct 7 ms 1008 KB Output is correct
76 Correct 14 ms 1620 KB Output is correct
77 Correct 14 ms 1620 KB Output is correct
78 Correct 16 ms 1788 KB Output is correct
79 Correct 14 ms 1656 KB Output is correct
80 Correct 15 ms 1620 KB Output is correct
81 Correct 29 ms 2936 KB Output is correct
82 Correct 27 ms 2824 KB Output is correct
83 Correct 28 ms 2808 KB Output is correct
84 Correct 27 ms 2944 KB Output is correct
85 Correct 27 ms 2856 KB Output is correct
86 Correct 32 ms 3064 KB Output is correct
87 Correct 37 ms 3052 KB Output is correct
88 Correct 37 ms 3148 KB Output is correct
89 Correct 34 ms 3156 KB Output is correct
90 Correct 31 ms 3176 KB Output is correct
91 Correct 57 ms 6044 KB Output is correct
92 Correct 55 ms 6008 KB Output is correct
93 Correct 56 ms 6016 KB Output is correct
94 Correct 57 ms 6000 KB Output is correct
95 Correct 55 ms 5948 KB Output is correct
96 Correct 68 ms 7896 KB Output is correct
97 Correct 66 ms 7680 KB Output is correct
98 Correct 70 ms 7676 KB Output is correct
99 Correct 65 ms 7684 KB Output is correct
100 Correct 68 ms 7688 KB Output is correct
101 Correct 70 ms 7688 KB Output is correct
102 Correct 67 ms 7692 KB Output is correct
103 Correct 71 ms 7660 KB Output is correct
104 Correct 67 ms 7584 KB Output is correct
105 Correct 65 ms 7588 KB Output is correct
106 Correct 66 ms 7796 KB Output is correct
107 Correct 84 ms 7796 KB Output is correct
108 Correct 66 ms 7812 KB Output is correct
109 Correct 65 ms 7820 KB Output is correct
110 Correct 65 ms 7800 KB Output is correct
111 Correct 69 ms 7796 KB Output is correct
112 Correct 70 ms 7804 KB Output is correct
113 Correct 67 ms 7804 KB Output is correct
114 Correct 70 ms 7872 KB Output is correct
115 Correct 66 ms 7900 KB Output is correct
116 Incorrect 1 ms 468 KB Output isn't correct
117 Halted 0 ms 0 KB -