oj.uz

Submission #415525

# Submission time Handle Problem Language Result Execution time Memory
415525 2021-06-01T08:07:42 Z Aldas25 Fireworks (APIO16_fireworks) C++14
26 / 100
 14 ms 16844 KB 
#include <bits/stdc++.h>

using namespace std;

#define FAST_IO ios_base::sync_with_stdio(0); cin.tie(0)
#define FOR(i, a, b) for(int i = (a); i <= (b); i++)
#define REP(n) FOR(O, 1, (n))
#define pb push_back
#define f first
#define s second
typedef long double ld;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<int, pii> piii;
typedef vector<int> vi;
typedef vector<pii> vii;
typedef vector<ll> vl;
typedef vector<piii> viii;

const int MAXN = 300100, MAXK = 30;
//const ll MOD = 998244353;
const ll INF = 4e18;
const ld PI = asin(1) * 2;

priority_queue<ll> q[MAXN];
int p[MAXN];
ll c[MAXN];
vi adj[MAXN];
int n, m;
int bg[MAXN];

void print (int i) {
    cout << " queue i=" << i << ": ";
    priority_queue<ll> tmp;
    while (!q[i].empty()) {
        ll x = q[i].top();
        q[i].pop();
        tmp.push(x);
        cout << " " << x;
    }
    while (!tmp.empty()) {
        ll x = tmp.top();
        tmp.pop();
        q[i].push(x);
        //cout << " " << x;
    }
    cout << endl;
}

void dfs (int v) {
   // cout << " v = " << v << endl;
    bg[v] = v;
    if (n+1 <= v) {
        REP(2) q[v].push(c[v]);
        //print(v);
        return;
    }
    for (int u : adj[v]) {
        dfs(u);

        if ((int)q[bg[u]].size() > (int)q[bg[v]].size()) bg[v] = bg[u];

        /*if ((int)q[u].size() > (int)q[v].size()) swap(q[u], q[v]);
        while (!q[u].empty()) {
            q[v].push(q[u].top());
            q[u].pop();
        }*/
    }
    for (int u : adj[v]) {
        //dfs(u);

        //if ((int)q[bg[u]].size() > (int)q[bg[v]].size()) bg[v] = bg[u];

        //if ((int)q[u].size() > (int)q[v].size()) swap(q[u], q[v]);
        if (bg[u] == bg[v]) continue;
        while (!q[bg[u]].empty()) {
            q[bg[v]].push(q[bg[u]].top());
            q[bg[u]].pop();
        }
    }



    int sz = (int)adj[v].size();
    REP(sz-1) q[bg[v]].pop();
    int fr, to;
    to = q[bg[v]].top();
    q[bg[v]].pop();
    fr = q[bg[v]].top();
    q[bg[v]].pop();
    q[bg[v]].push(fr+c[v]);
    q[bg[v]].push(to+c[v]);


   // print(v);
}

int main()
{
    FAST_IO;

    cin >> n >> m;
    FOR(i, 2, n+m) {
        cin >> p[i] >> c[i];
        adj[p[i]].pb(i);
    }

    /*FOR(i, 1, n+m) {
        cout << "    i = " << i << "  adj: ";
        for (int x : adj[i]) cout << x << " ";
        cout << endl;
    }*/

    dfs (1);

    ll cur = 0;
    FOR(i, 1, n+m) cur += c[i];

    q[bg[1]].pop();
    while (!q[bg[1]].empty()) {
        cur -= q[bg[1]].top();
        q[bg[1]].pop();
    }

    cout << cur << "\n";


    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 16716 KB Output is correct
2 Correct 11 ms 16716 KB Output is correct
3 Correct 11 ms 16716 KB Output is correct
4 Correct 11 ms 16788 KB Output is correct
5 Correct 11 ms 16716 KB Output is correct
6 Correct 11 ms 16772 KB Output is correct
7 Correct 12 ms 16716 KB Output is correct
8 Correct 13 ms 16716 KB Output is correct
9 Correct 14 ms 16780 KB Output is correct
10 Correct 13 ms 16724 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 16716 KB Output is correct
2 Correct 11 ms 16772 KB Output is correct
3 Correct 14 ms 16772 KB Output is correct
4 Correct 13 ms 16716 KB Output is correct
5 Correct 14 ms 16716 KB Output is correct
6 Correct 13 ms 16716 KB Output is correct
7 Correct 12 ms 16720 KB Output is correct
8 Correct 12 ms 16716 KB Output is correct
9 Correct 12 ms 16844 KB Output is correct
10 Correct 11 ms 16716 KB Output is correct
11 Correct 11 ms 16788 KB Output is correct
12 Correct 11 ms 16716 KB Output is correct
13 Correct 11 ms 16732 KB Output is correct
14 Correct 11 ms 16716 KB Output is correct
15 Correct 14 ms 16716 KB Output is correct
16 Correct 14 ms 16716 KB Output is correct
17 Correct 11 ms 16716 KB Output is correct
18 Correct 14 ms 16716 KB Output is correct
19 Correct 13 ms 16716 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 16716 KB Output is correct
2 Correct 11 ms 16716 KB Output is correct
3 Correct 11 ms 16716 KB Output is correct
4 Correct 11 ms 16788 KB Output is correct
5 Correct 11 ms 16716 KB Output is correct
6 Correct 11 ms 16772 KB Output is correct
7 Correct 12 ms 16716 KB Output is correct
8 Correct 13 ms 16716 KB Output is correct
9 Correct 14 ms 16780 KB Output is correct
10 Correct 13 ms 16724 KB Output is correct
11 Correct 13 ms 16716 KB Output is correct
12 Correct 11 ms 16772 KB Output is correct
13 Correct 14 ms 16772 KB Output is correct
14 Correct 13 ms 16716 KB Output is correct
15 Correct 14 ms 16716 KB Output is correct
16 Correct 13 ms 16716 KB Output is correct
17 Correct 12 ms 16720 KB Output is correct
18 Correct 12 ms 16716 KB Output is correct
19 Correct 12 ms 16844 KB Output is correct
20 Correct 11 ms 16716 KB Output is correct
21 Correct 11 ms 16788 KB Output is correct
22 Correct 11 ms 16716 KB Output is correct
23 Correct 11 ms 16732 KB Output is correct
24 Correct 11 ms 16716 KB Output is correct
25 Correct 14 ms 16716 KB Output is correct
26 Correct 14 ms 16716 KB Output is correct
27 Correct 11 ms 16716 KB Output is correct
28 Correct 14 ms 16716 KB Output is correct
29 Correct 13 ms 16716 KB Output is correct
30 Incorrect 13 ms 16804 KB Output isn't correct
31 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 16716 KB Output is correct
2 Correct 11 ms 16716 KB Output is correct
3 Correct 11 ms 16716 KB Output is correct
4 Correct 11 ms 16788 KB Output is correct
5 Correct 11 ms 16716 KB Output is correct
6 Correct 11 ms 16772 KB Output is correct
7 Correct 12 ms 16716 KB Output is correct
8 Correct 13 ms 16716 KB Output is correct
9 Correct 14 ms 16780 KB Output is correct
10 Correct 13 ms 16724 KB Output is correct
11 Correct 13 ms 16716 KB Output is correct
12 Correct 11 ms 16772 KB Output is correct
13 Correct 14 ms 16772 KB Output is correct
14 Correct 13 ms 16716 KB Output is correct
15 Correct 14 ms 16716 KB Output is correct
16 Correct 13 ms 16716 KB Output is correct
17 Correct 12 ms 16720 KB Output is correct
18 Correct 12 ms 16716 KB Output is correct
19 Correct 12 ms 16844 KB Output is correct
20 Correct 11 ms 16716 KB Output is correct
21 Correct 11 ms 16788 KB Output is correct
22 Correct 11 ms 16716 KB Output is correct
23 Correct 11 ms 16732 KB Output is correct
24 Correct 11 ms 16716 KB Output is correct
25 Correct 14 ms 16716 KB Output is correct
26 Correct 14 ms 16716 KB Output is correct
27 Correct 11 ms 16716 KB Output is correct
28 Correct 14 ms 16716 KB Output is correct
29 Correct 13 ms 16716 KB Output is correct
30 Incorrect 13 ms 16804 KB Output isn't correct
31 Halted 0 ms 0 KB -