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답안 #591727

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
591727 2022-07-07T19:30:07 Z piOOE Fireworks (APIO16_fireworks) C++17
100 / 100
 181 ms 43808 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
#include <ext/pb_ds/assoc_container.hpp>
 
using namespace __gnu_pbds;
 
template<typename T>
using ordered_set = tree<T, null_type, less < T>, rb_tree_tag, tree_order_statistics_node_update>;
 
template<typename T>
using normal_queue = priority_queue <T, vector<T>, greater<>>;
 
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
 
#define ll long long
#define trace(x) cout << #x << ": " << (x) << endl;
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define uniq(x) x.resize(unique(all(x)) - begin(x))
#define ld long double
#define sz(s) ((int) size(s))
#define pii pair<int, int>
#define mp(x, y) make_pair(x, y)
#define int128 __int128
#define pb push_back
#define eb emplace_back
 
 
template<typename T>
bool ckmin(T &x, T y) {
    if (x > y) {
        x = y;
        return true;
    }
    return false;
}
 
template<typename T>
bool ckmax(T &x, T y) {
    if (x < y) {
        x = y;
        return true;
    }
    return false;
}
 
int bit(int x, int b) {
    return (x >> b) & 1;
}
 
 
int rand(int l, int r) { return (int) ((ll) rnd() % (r - l + 1)) + l; }
 
//soryan za musor sverhu
 
const ll infL = 3e18;
const int infI = 1e9 + 7;
const int N = 300001;
const ll mod = 1e9 + 7;
const ld eps = 1e-9;
 
priority_queue<ll> pq[N];
int p[N], c[N];
ll k[N], b[N];
//это уравнение прямой при больших X
 
int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    //https://codeforces.com/blog/entry/47821
    int n, m;
    cin >> n >> m;
    auto mrg = [](int i) {
        if (sz(pq[i]) > sz(pq[p[i]])) swap(pq[i], pq[p[i]]);
        k[p[i]] += k[i];
        b[p[i]] += b[i];
        while (!pq[i].empty()) {
            auto v = pq[i].top();
            pq[i].pop();
            pq[p[i]].push(v);
        }
    };
    for (int i = 1; i < n + m; ++i) {
        cin >> p[i] >> c[i];
        --p[i];
    }
    for (int i = n; i < n + m; ++i) {
        k[i] = 1;
        b[i] = -c[i];
        pq[i].push(c[i]);
        pq[i].push(c[i]);
        mrg(i);
    }
    for (int i = n - 1; i > 0; --i) {
        //we don't need slopes with k > 1 because we just can increase c[i[ by one all the time
        while (k[i] > 1) {
            --k[i];
            b[i] += pq[i].top(); // y = kx+b = (a-1)x + (b + x) at slope changing point
            pq[i].pop();
        }
        auto R = pq[i].top();
        pq[i].pop();
        auto L = pq[i].top();
        pq[i].pop();
        L += c[i];
        R += c[i];
        //moving slopes with K = 0, 1
        b[i] -= c[i];
        //we shifted to the right by c[i] and k = 1 so b[i] decreases by c[i]
        pq[i].push(L);
        pq[i].push(R);
        mrg(i);
    }
    while (k[0] > 0) {
        --k[0];
        b[0] += pq[0].top();// y = kx+b = (a-1)x + (b + x) at slope changing point
        pq[0].pop();
    }
    cout << b[0];
    return 0;
}

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9748 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 6 ms 9816 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 5 ms 9728 KB Output is correct
10 Correct 5 ms 9684 KB Output is correct

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 5 ms 9724 KB Output is correct
5 Correct 5 ms 9728 KB Output is correct
6 Correct 5 ms 9732 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 5 ms 9660 KB Output is correct
11 Correct 5 ms 9724 KB Output is correct
12 Correct 5 ms 9684 KB Output is correct
13 Correct 5 ms 9684 KB Output is correct
14 Correct 5 ms 9728 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 6 ms 9728 KB Output is correct
18 Correct 5 ms 9684 KB Output is correct
19 Correct 5 ms 9708 KB Output is correct

Subtask #3
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9748 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 6 ms 9816 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 5 ms 9728 KB Output is correct
10 Correct 5 ms 9684 KB Output is correct
11 Correct 6 ms 9728 KB Output is correct
12 Correct 6 ms 9684 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9724 KB Output is correct
15 Correct 5 ms 9728 KB Output is correct
16 Correct 5 ms 9732 KB Output is correct
17 Correct 5 ms 9684 KB Output is correct
18 Correct 5 ms 9684 KB Output is correct
19 Correct 5 ms 9684 KB Output is correct
20 Correct 5 ms 9660 KB Output is correct
21 Correct 5 ms 9724 KB Output is correct
22 Correct 5 ms 9684 KB Output is correct
23 Correct 5 ms 9684 KB Output is correct
24 Correct 5 ms 9728 KB Output is correct
25 Correct 5 ms 9684 KB Output is correct
26 Correct 6 ms 9728 KB Output is correct
27 Correct 6 ms 9728 KB Output is correct
28 Correct 5 ms 9684 KB Output is correct
29 Correct 5 ms 9708 KB Output is correct
30 Correct 6 ms 9684 KB Output is correct
31 Correct 5 ms 9812 KB Output is correct
32 Correct 5 ms 9812 KB Output is correct
33 Correct 6 ms 9888 KB Output is correct
34 Correct 6 ms 9868 KB Output is correct
35 Correct 6 ms 9940 KB Output is correct
36 Correct 7 ms 9940 KB Output is correct
37 Correct 8 ms 10068 KB Output is correct
38 Correct 9 ms 10068 KB Output is correct
39 Correct 7 ms 9996 KB Output is correct
40 Correct 7 ms 9940 KB Output is correct
41 Correct 6 ms 9940 KB Output is correct
42 Correct 6 ms 9940 KB Output is correct
43 Correct 8 ms 9992 KB Output is correct
44 Correct 7 ms 9992 KB Output is correct
45 Correct 7 ms 10028 KB Output is correct
46 Correct 7 ms 10224 KB Output is correct
47 Correct 7 ms 10196 KB Output is correct
48 Correct 8 ms 10196 KB Output is correct
49 Correct 7 ms 10248 KB Output is correct
50 Correct 8 ms 10196 KB Output is correct
51 Correct 7 ms 10068 KB Output is correct
52 Correct 9 ms 10196 KB Output is correct
53 Correct 8 ms 10132 KB Output is correct
54 Correct 7 ms 10104 KB Output is correct

Subtask #4
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9748 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 6 ms 9816 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 5 ms 9728 KB Output is correct
10 Correct 5 ms 9684 KB Output is correct
11 Correct 6 ms 9728 KB Output is correct
12 Correct 6 ms 9684 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9724 KB Output is correct
15 Correct 5 ms 9728 KB Output is correct
16 Correct 5 ms 9732 KB Output is correct
17 Correct 5 ms 9684 KB Output is correct
18 Correct 5 ms 9684 KB Output is correct
19 Correct 5 ms 9684 KB Output is correct
20 Correct 5 ms 9660 KB Output is correct
21 Correct 5 ms 9724 KB Output is correct
22 Correct 5 ms 9684 KB Output is correct
23 Correct 5 ms 9684 KB Output is correct
24 Correct 5 ms 9728 KB Output is correct
25 Correct 5 ms 9684 KB Output is correct
26 Correct 6 ms 9728 KB Output is correct
27 Correct 6 ms 9728 KB Output is correct
28 Correct 5 ms 9684 KB Output is correct
29 Correct 5 ms 9708 KB Output is correct
30 Correct 6 ms 9684 KB Output is correct
31 Correct 5 ms 9812 KB Output is correct
32 Correct 5 ms 9812 KB Output is correct
33 Correct 6 ms 9888 KB Output is correct
34 Correct 6 ms 9868 KB Output is correct
35 Correct 6 ms 9940 KB Output is correct
36 Correct 7 ms 9940 KB Output is correct
37 Correct 8 ms 10068 KB Output is correct
38 Correct 9 ms 10068 KB Output is correct
39 Correct 7 ms 9996 KB Output is correct
40 Correct 7 ms 9940 KB Output is correct
41 Correct 6 ms 9940 KB Output is correct
42 Correct 6 ms 9940 KB Output is correct
43 Correct 8 ms 9992 KB Output is correct
44 Correct 7 ms 9992 KB Output is correct
45 Correct 7 ms 10028 KB Output is correct
46 Correct 7 ms 10224 KB Output is correct
47 Correct 7 ms 10196 KB Output is correct
48 Correct 8 ms 10196 KB Output is correct
49 Correct 7 ms 10248 KB Output is correct
50 Correct 8 ms 10196 KB Output is correct
51 Correct 7 ms 10068 KB Output is correct
52 Correct 9 ms 10196 KB Output is correct
53 Correct 8 ms 10132 KB Output is correct
54 Correct 7 ms 10104 KB Output is correct
55 Correct 11 ms 10696 KB Output is correct
56 Correct 25 ms 13524 KB Output is correct
57 Correct 43 ms 16068 KB Output is correct
58 Correct 62 ms 17864 KB Output is correct
59 Correct 72 ms 20512 KB Output is correct
60 Correct 105 ms 23080 KB Output is correct
61 Correct 93 ms 25416 KB Output is correct
62 Correct 105 ms 26848 KB Output is correct
63 Correct 126 ms 30036 KB Output is correct
64 Correct 151 ms 31032 KB Output is correct
65 Correct 70 ms 21604 KB Output is correct
66 Correct 68 ms 21580 KB Output is correct
67 Correct 66 ms 21656 KB Output is correct
68 Correct 122 ms 28328 KB Output is correct
69 Correct 134 ms 28928 KB Output is correct
70 Correct 125 ms 28992 KB Output is correct
71 Correct 170 ms 43684 KB Output is correct
72 Correct 167 ms 43808 KB Output is correct
73 Correct 147 ms 40256 KB Output is correct
74 Correct 147 ms 40764 KB Output is correct
75 Correct 148 ms 39088 KB Output is correct
76 Correct 146 ms 39424 KB Output is correct
77 Correct 181 ms 38832 KB Output is correct
78 Correct 165 ms 38124 KB Output is correct
79 Correct 124 ms 36072 KB Output is correct