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Submission #1097759

# Submission time Handle Problem Language Result Execution time Memory
1097759 2024-10-08T08:12:18 Z Zero_OP Fireworks (APIO16_fireworks) C++14
100 / 100
 158 ms 85072 KB 
#include<bits/stdc++.h>

using namespace std;

#define sz(v) (int)v.size()
#define all(v) begin(v), end(v)
#define compact(v) v.erase(unique(all(v)), end(v))
#define dbg(v) "[" #v " = " << (v) << "]"
#define file(name) if(fopen(name".inp", "r")) {freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
#define rep(i, l, r) for(int i = (l); i < (r); ++i)

using ll = long long;
using vi = vector<int>;
using vl = vector<long long>;
using ld = long double;

template<typename T>
    bool minimize(T& a, const T& b){
        if(a > b){
            return a = b, true;
        }  return false;
    }

template<typename T>
    bool maximize(T& a, const T& b){
        if(a < b){
            return a = b, true;
        } return false;
    }

template<int dimension, typename T>
struct tensor : public vector<tensor<dimension - 1, T>> {
    static_assert(dimension > 0, "Dimension must be positive !\n");
    template<typename... Args>
    tensor(int n = 0, Args... args) : vector<tensor<dimension - 1, T>> (n, tensor<dimension - 1, T>(args...)) {}
};

template<typename T>
struct tensor<1, T> : public vector<T> {
    tensor(int n = 0, T val = T()) : vector<T>(n, val) {}
};

const int MAX = 6e5 + 5;

int n, m;
ll slope[MAX], intercept[MAX];
vector<pair<int, int>> adj[MAX];
priority_queue<ll> pq[MAX];

void convert(int i, ll x){
    while(slope[i] > 1){
        intercept[i] += pq[i].top();
        --slope[i];
        pq[i].pop();
    }

    ll p = pq[i].top(); pq[i].pop();
    ll q = pq[i].top(); pq[i].pop();

    pq[i].push(p + x);
    pq[i].push(q + x);
    intercept[i] -= x;
}

void dfs(int u){
    for(auto [v, w] : adj[u]){
        if(n + 1 <= v && v <= n + m){
            //leaf
            slope[v] = 1;
            intercept[v] = -w;
            pq[v].push(w);
            pq[v].push(w);
        } else{
            //non-leaf
            dfs(v);
            convert(v, w);
        }

        slope[u] += slope[v];
        intercept[u] += intercept[v];
        if(sz(pq[u]) < sz(pq[v])){
            swap(pq[u], pq[v]);
        }

        while(!pq[v].empty()){
            pq[u].push(pq[v].top());
            pq[v].pop();
        }
    }
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    if(fopen("task.inp", "r")){
        freopen("task.inp", "r", stdin);
        freopen("task.out", "w", stdout);
    }

    cin >> n >> m;
    for(int i = 2; i <= n + m; ++i){
        int p, w;
        cin >> p >> w;
        adj[p].emplace_back(i, w);
    }

    dfs(1);

    while(slope[1] > 0){
        intercept[1] += pq[1].top();
        --slope[1];
        pq[1].pop();
    }

    cout << intercept[1] << '\n';

    return 0;
}

Compilation message

fireworks.cpp: In function 'void dfs(int)':
fireworks.cpp:66:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   66 |     for(auto [v, w] : adj[u]){
      |              ^
fireworks.cpp: In function 'int main()':
fireworks.cpp:97:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   97 |         freopen("task.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
fireworks.cpp:98:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   98 |         freopen("task.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 33116 KB Output is correct
2 Correct 17 ms 33344 KB Output is correct
3 Correct 14 ms 33368 KB Output is correct
4 Correct 14 ms 33164 KB Output is correct
5 Correct 14 ms 33116 KB Output is correct
6 Correct 16 ms 33116 KB Output is correct
7 Correct 15 ms 33116 KB Output is correct
8 Correct 15 ms 33368 KB Output is correct
9 Correct 15 ms 33116 KB Output is correct
10 Correct 15 ms 33108 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 33372 KB Output is correct
2 Correct 15 ms 33116 KB Output is correct
3 Correct 14 ms 33116 KB Output is correct
4 Correct 16 ms 33116 KB Output is correct
5 Correct 16 ms 33112 KB Output is correct
6 Correct 15 ms 33288 KB Output is correct
7 Correct 16 ms 33116 KB Output is correct
8 Correct 15 ms 33116 KB Output is correct
9 Correct 15 ms 33116 KB Output is correct
10 Correct 16 ms 33320 KB Output is correct
11 Correct 15 ms 33372 KB Output is correct
12 Correct 18 ms 33368 KB Output is correct
13 Correct 14 ms 33372 KB Output is correct
14 Correct 13 ms 33388 KB Output is correct
15 Correct 16 ms 33368 KB Output is correct
16 Correct 16 ms 33368 KB Output is correct
17 Correct 16 ms 33376 KB Output is correct
18 Correct 16 ms 33116 KB Output is correct
19 Correct 15 ms 33352 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 33116 KB Output is correct
2 Correct 17 ms 33344 KB Output is correct
3 Correct 14 ms 33368 KB Output is correct
4 Correct 14 ms 33164 KB Output is correct
5 Correct 14 ms 33116 KB Output is correct
6 Correct 16 ms 33116 KB Output is correct
7 Correct 15 ms 33116 KB Output is correct
8 Correct 15 ms 33368 KB Output is correct
9 Correct 15 ms 33116 KB Output is correct
10 Correct 15 ms 33108 KB Output is correct
11 Correct 16 ms 33372 KB Output is correct
12 Correct 15 ms 33116 KB Output is correct
13 Correct 14 ms 33116 KB Output is correct
14 Correct 16 ms 33116 KB Output is correct
15 Correct 16 ms 33112 KB Output is correct
16 Correct 15 ms 33288 KB Output is correct
17 Correct 16 ms 33116 KB Output is correct
18 Correct 15 ms 33116 KB Output is correct
19 Correct 15 ms 33116 KB Output is correct
20 Correct 16 ms 33320 KB Output is correct
21 Correct 15 ms 33372 KB Output is correct
22 Correct 18 ms 33368 KB Output is correct
23 Correct 14 ms 33372 KB Output is correct
24 Correct 13 ms 33388 KB Output is correct
25 Correct 16 ms 33368 KB Output is correct
26 Correct 16 ms 33368 KB Output is correct
27 Correct 16 ms 33376 KB Output is correct
28 Correct 16 ms 33116 KB Output is correct
29 Correct 15 ms 33352 KB Output is correct
30 Correct 15 ms 33368 KB Output is correct
31 Correct 14 ms 33372 KB Output is correct
32 Correct 14 ms 33372 KB Output is correct
33 Correct 15 ms 33368 KB Output is correct
34 Correct 14 ms 33372 KB Output is correct
35 Correct 15 ms 33624 KB Output is correct
36 Correct 15 ms 33624 KB Output is correct
37 Correct 15 ms 33628 KB Output is correct
38 Correct 15 ms 33540 KB Output is correct
39 Correct 16 ms 33628 KB Output is correct
40 Correct 15 ms 34136 KB Output is correct
41 Correct 16 ms 34140 KB Output is correct
42 Correct 16 ms 33552 KB Output is correct
43 Correct 16 ms 33884 KB Output is correct
44 Correct 17 ms 33628 KB Output is correct
45 Correct 20 ms 33884 KB Output is correct
46 Correct 15 ms 33628 KB Output is correct
47 Correct 15 ms 33860 KB Output is correct
48 Correct 18 ms 33628 KB Output is correct
49 Correct 15 ms 33628 KB Output is correct
50 Correct 18 ms 33624 KB Output is correct
51 Correct 15 ms 33628 KB Output is correct
52 Correct 15 ms 33628 KB Output is correct
53 Correct 15 ms 33628 KB Output is correct
54 Correct 18 ms 33628 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 33116 KB Output is correct
2 Correct 17 ms 33344 KB Output is correct
3 Correct 14 ms 33368 KB Output is correct
4 Correct 14 ms 33164 KB Output is correct
5 Correct 14 ms 33116 KB Output is correct
6 Correct 16 ms 33116 KB Output is correct
7 Correct 15 ms 33116 KB Output is correct
8 Correct 15 ms 33368 KB Output is correct
9 Correct 15 ms 33116 KB Output is correct
10 Correct 15 ms 33108 KB Output is correct
11 Correct 16 ms 33372 KB Output is correct
12 Correct 15 ms 33116 KB Output is correct
13 Correct 14 ms 33116 KB Output is correct
14 Correct 16 ms 33116 KB Output is correct
15 Correct 16 ms 33112 KB Output is correct
16 Correct 15 ms 33288 KB Output is correct
17 Correct 16 ms 33116 KB Output is correct
18 Correct 15 ms 33116 KB Output is correct
19 Correct 15 ms 33116 KB Output is correct
20 Correct 16 ms 33320 KB Output is correct
21 Correct 15 ms 33372 KB Output is correct
22 Correct 18 ms 33368 KB Output is correct
23 Correct 14 ms 33372 KB Output is correct
24 Correct 13 ms 33388 KB Output is correct
25 Correct 16 ms 33368 KB Output is correct
26 Correct 16 ms 33368 KB Output is correct
27 Correct 16 ms 33376 KB Output is correct
28 Correct 16 ms 33116 KB Output is correct
29 Correct 15 ms 33352 KB Output is correct
30 Correct 15 ms 33368 KB Output is correct
31 Correct 14 ms 33372 KB Output is correct
32 Correct 14 ms 33372 KB Output is correct
33 Correct 15 ms 33368 KB Output is correct
34 Correct 14 ms 33372 KB Output is correct
35 Correct 15 ms 33624 KB Output is correct
36 Correct 15 ms 33624 KB Output is correct
37 Correct 15 ms 33628 KB Output is correct
38 Correct 15 ms 33540 KB Output is correct
39 Correct 16 ms 33628 KB Output is correct
40 Correct 15 ms 34136 KB Output is correct
41 Correct 16 ms 34140 KB Output is correct
42 Correct 16 ms 33552 KB Output is correct
43 Correct 16 ms 33884 KB Output is correct
44 Correct 17 ms 33628 KB Output is correct
45 Correct 20 ms 33884 KB Output is correct
46 Correct 15 ms 33628 KB Output is correct
47 Correct 15 ms 33860 KB Output is correct
48 Correct 18 ms 33628 KB Output is correct
49 Correct 15 ms 33628 KB Output is correct
50 Correct 18 ms 33624 KB Output is correct
51 Correct 15 ms 33628 KB Output is correct
52 Correct 15 ms 33628 KB Output is correct
53 Correct 15 ms 33628 KB Output is correct
54 Correct 18 ms 33628 KB Output is correct
55 Correct 21 ms 34392 KB Output is correct
56 Correct 31 ms 37212 KB Output is correct
57 Correct 46 ms 39768 KB Output is correct
58 Correct 62 ms 41676 KB Output is correct
59 Correct 81 ms 44680 KB Output is correct
60 Correct 91 ms 47336 KB Output is correct
61 Correct 104 ms 49764 KB Output is correct
62 Correct 112 ms 51404 KB Output is correct
63 Correct 131 ms 54588 KB Output is correct
64 Correct 158 ms 55752 KB Output is correct
65 Correct 88 ms 85024 KB Output is correct
66 Correct 87 ms 85072 KB Output is correct
67 Correct 89 ms 52308 KB Output is correct
68 Correct 110 ms 69636 KB Output is correct
69 Correct 121 ms 67268 KB Output is correct
70 Correct 119 ms 67304 KB Output is correct
71 Correct 139 ms 66236 KB Output is correct
72 Correct 144 ms 66500 KB Output is correct
73 Correct 116 ms 62708 KB Output is correct
74 Correct 114 ms 62904 KB Output is correct
75 Correct 116 ms 61372 KB Output is correct
76 Correct 129 ms 61504 KB Output is correct
77 Correct 129 ms 60612 KB Output is correct
78 Correct 128 ms 59116 KB Output is correct
79 Correct 118 ms 59584 KB Output is correct