oj.uz

Submission #746972

# Submission time Handle Problem Language Result Execution time Memory
746972 2023-05-23T09:56:49 Z Prieved1 Fireworks (APIO16_fireworks) C++17
7 / 100
 17 ms 30828 KB 
#include<iostream>
#include<vector>
#include<queue>
using namespace std;
#define int long long
int inf=4e18;
struct pq {
    priority_queue<int, vector<int>,
    greater<int>> q;
    int offside=0;
    void push(int val) {
        q.push(val-offside);
    }
    int top(){return q.top()+offside;}
    void pop(){q.pop();}
    void move(int k){offside+=k;}
    int size(){return q.size();}
};
struct node{
    priority_queue<int> lr;
    pq rr;
    int val=0;
    int sz(){return lr.size()+rr.size();}
    void add(int k) {
        if(!lr.size()) {
            lr.push(k);
            rr.push(k);
            lr.push(0);
            //rr.push(inf);
        }else {
            int c=rr.top();
            rr.pop();
            rr.move(k);
            rr.push(c);
            rr.move(k);
            c=lr.top();
            lr.pop();
            lr.push(c+k);
        }
    }
};
void merge(node &a, node& b) {
    b.val+=a.val;
    while(a.lr.size()) {
        int i=a.lr.top();
        a.lr.pop();
        if(i<=b.rr.top()) {
            b.lr.push(i);
        }
        else {
            b.rr.push(i);
            //b.val+=i-b.lr.top();
            b.lr.push(b.rr.top());
            b.rr.pop();
            b.val+=i-b.lr.top();
        }
    }
    while(a.rr.size()) {
        int i=a.rr.top();
        a.rr.pop();
        if(i>=b.lr.top()) {
            b.rr.push(i);
        }
        else {
            b.lr.push(i);
            b.rr.push(b.lr.top());
            b.lr.pop();
            b.val+=b.rr.top()-i;
        }
    }
}
const int N=300010;
vector<pair<int,int>> g[N];
node res[N];
void dfs(int at) {
    // res[at].add(0);
    for(auto to:g[at]) {
        dfs(to.first);
        res[to.first].add(to.second);
        if(res[at].sz()<res[to.first].sz()) 
        {
        swap(res[at],res[to.first]);
        }
        merge(res[to.first], res[at]);
    }
}
int32_t main()
{
    int n, m;
    cin >> n >> m;
    for(int i =2;i<=n+m;i++) {
        int p, c;
        cin >> p >> c;
        g[p].push_back({i,c});
    }
    dfs(1);
    cout << res[1].val << endl;
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 30804 KB Output is correct
2 Correct 14 ms 30804 KB Output is correct
3 Correct 15 ms 30824 KB Output is correct
4 Correct 14 ms 30828 KB Output is correct
5 Correct 17 ms 30772 KB Output is correct
6 Correct 15 ms 30804 KB Output is correct
7 Correct 15 ms 30756 KB Output is correct
8 Correct 15 ms 30804 KB Output is correct
9 Correct 16 ms 30804 KB Output is correct
10 Correct 16 ms 30788 KB Output is correct

Subtask #2
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 30824 KB Output is correct
2 Correct 14 ms 30804 KB Output is correct
3 Correct 15 ms 30804 KB Output is correct
4 Correct 14 ms 30804 KB Output is correct
5 Correct 15 ms 30804 KB Output is correct
6 Incorrect 15 ms 30772 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 30804 KB Output is correct
2 Correct 14 ms 30804 KB Output is correct
3 Correct 15 ms 30824 KB Output is correct
4 Correct 14 ms 30828 KB Output is correct
5 Correct 17 ms 30772 KB Output is correct
6 Correct 15 ms 30804 KB Output is correct
7 Correct 15 ms 30756 KB Output is correct
8 Correct 15 ms 30804 KB Output is correct
9 Correct 16 ms 30804 KB Output is correct
10 Correct 16 ms 30788 KB Output is correct
11 Correct 16 ms 30824 KB Output is correct
12 Correct 14 ms 30804 KB Output is correct
13 Correct 15 ms 30804 KB Output is correct
14 Correct 14 ms 30804 KB Output is correct
15 Correct 15 ms 30804 KB Output is correct
16 Incorrect 15 ms 30772 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 30804 KB Output is correct
2 Correct 14 ms 30804 KB Output is correct
3 Correct 15 ms 30824 KB Output is correct
4 Correct 14 ms 30828 KB Output is correct
5 Correct 17 ms 30772 KB Output is correct
6 Correct 15 ms 30804 KB Output is correct
7 Correct 15 ms 30756 KB Output is correct
8 Correct 15 ms 30804 KB Output is correct
9 Correct 16 ms 30804 KB Output is correct
10 Correct 16 ms 30788 KB Output is correct
11 Correct 16 ms 30824 KB Output is correct
12 Correct 14 ms 30804 KB Output is correct
13 Correct 15 ms 30804 KB Output is correct
14 Correct 14 ms 30804 KB Output is correct
15 Correct 15 ms 30804 KB Output is correct
16 Incorrect 15 ms 30772 KB Output isn't correct
17 Halted 0 ms 0 KB -