oj.uz

Submission #746973

# Submission time Handle Problem Language Result Execution time Memory
746973 2023-05-23T09:58:36 Z Prieved1 Fireworks (APIO16_fireworks) C++17
7 / 100
 22 ms 30932 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 20 ms 30808 KB Output is correct
2 Correct 15 ms 30788 KB Output is correct
3 Correct 16 ms 30804 KB Output is correct
4 Correct 16 ms 30716 KB Output is correct
5 Correct 16 ms 30804 KB Output is correct
6 Correct 16 ms 30804 KB Output is correct
7 Correct 22 ms 30816 KB Output is correct
8 Correct 16 ms 30932 KB Output is correct
9 Correct 16 ms 30804 KB Output is correct
10 Correct 16 ms 30804 KB Output is correct

Subtask #2
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 30836 KB Output is correct
2 Correct 15 ms 30804 KB Output is correct
3 Correct 14 ms 30784 KB Output is correct
4 Correct 15 ms 30808 KB Output is correct
5 Correct 15 ms 30804 KB Output is correct
6 Incorrect 16 ms 30804 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 30808 KB Output is correct
2 Correct 15 ms 30788 KB Output is correct
3 Correct 16 ms 30804 KB Output is correct
4 Correct 16 ms 30716 KB Output is correct
5 Correct 16 ms 30804 KB Output is correct
6 Correct 16 ms 30804 KB Output is correct
7 Correct 22 ms 30816 KB Output is correct
8 Correct 16 ms 30932 KB Output is correct
9 Correct 16 ms 30804 KB Output is correct
10 Correct 16 ms 30804 KB Output is correct
11 Correct 15 ms 30836 KB Output is correct
12 Correct 15 ms 30804 KB Output is correct
13 Correct 14 ms 30784 KB Output is correct
14 Correct 15 ms 30808 KB Output is correct
15 Correct 15 ms 30804 KB Output is correct
16 Incorrect 16 ms 30804 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 30808 KB Output is correct
2 Correct 15 ms 30788 KB Output is correct
3 Correct 16 ms 30804 KB Output is correct
4 Correct 16 ms 30716 KB Output is correct
5 Correct 16 ms 30804 KB Output is correct
6 Correct 16 ms 30804 KB Output is correct
7 Correct 22 ms 30816 KB Output is correct
8 Correct 16 ms 30932 KB Output is correct
9 Correct 16 ms 30804 KB Output is correct
10 Correct 16 ms 30804 KB Output is correct
11 Correct 15 ms 30836 KB Output is correct
12 Correct 15 ms 30804 KB Output is correct
13 Correct 14 ms 30784 KB Output is correct
14 Correct 15 ms 30808 KB Output is correct
15 Correct 15 ms 30804 KB Output is correct
16 Incorrect 16 ms 30804 KB Output isn't correct
17 Halted 0 ms 0 KB -