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Submission #949516

# Submission time Handle Problem Language Result Execution time Memory
949516 2024-03-19T10:06:35 Z berr Magic Tree (CEOI19_magictree) C++17
100 / 100
 129 ms 35676 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long


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

    int n, m, k; cin >> n >> m >> k;

    vector<vector<int>> g(n);
    array<int, 2> base = {-1, -1};
    vector<array<int, 2>> val(n, base);
    
    for(int i=1; i<n; i++){
        int x; cin >> x; x--;
        g[x].push_back(i);
    }

    for(int i=0; i<m; i++){
        int v, d, w; cin >> v >> d >> w;
        v--;
        val[v] = {d, w};
    }

    auto dfs=[&](int v, auto&&dfs)->set<array<int, 2>>{
        set<array<int, 2>> res;
        res.insert({0, 0});

        for(auto i: g[v]){
            auto x = dfs(i, dfs);
            if(x.size() > res.size()) swap(res, x);
        
            for(auto i: x){
                auto a = res.lower_bound({i[0], 0});

                if(a==res.end()||(*a)[0] > i[0]) a=prev(a);
                if((*a)[0] == i[0]){
                    i[1]+=(*a)[1];
                    res.erase(a);
                    res.insert(i); 
                 
                }
                else{
                    
                    res.insert(i);
            
                }
            }
        }

        
        if(val[v][0]!=-1){
            auto a = res.lower_bound({val[v][0], 0});
            auto i=val[v];

            if(a==res.end()||(*a)[0] > i[0]) a=prev(a);
            if((*a)[0] == i[0]){
                i[1]+=(*a)[1];
                res.erase(a);
                res.insert(i);
            
            }
            else{
                
                res.insert(i);
            }
            auto it = res.upper_bound({val[v][0], (int)1e18});

            while(it!=res.end()){
               
                    if((*it)[1]>val[v][1]){
                        array<int, 2> x=*it;
                        res.erase(it);
                        x[1]-=val[v][1];
                        if(x[1]) res.insert(x);
                        break;
                    } 
                    else{
                        val[v][1]-=(*it)[1];
                        it = res.erase(it);
                    }
                
            }
        }

        return res;
    };

    auto x = dfs(0, dfs);
    int ans=0;
    for(auto i: x)ans+=i[1];

    cout<<ans;

}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 8016 KB Output is correct
2 Correct 44 ms 18824 KB Output is correct
3 Correct 108 ms 10096 KB Output is correct
4 Correct 77 ms 8860 KB Output is correct
5 Correct 80 ms 11356 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 63 ms 35652 KB Output is correct
5 Correct 77 ms 35520 KB Output is correct
6 Correct 89 ms 35548 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 6236 KB Output is correct
2 Correct 48 ms 6236 KB Output is correct
3 Correct 52 ms 18004 KB Output is correct
4 Correct 36 ms 5340 KB Output is correct
5 Correct 62 ms 35676 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 55 ms 6236 KB Output is correct
11 Correct 50 ms 6228 KB Output is correct
12 Correct 62 ms 18096 KB Output is correct
13 Correct 38 ms 5340 KB Output is correct
14 Correct 65 ms 35412 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1624 KB Output is correct
2 Correct 22 ms 6280 KB Output is correct
3 Correct 24 ms 6236 KB Output is correct
4 Correct 30 ms 6236 KB Output is correct
5 Correct 16 ms 5336 KB Output is correct
6 Correct 27 ms 11608 KB Output is correct
7 Correct 32 ms 18008 KB Output is correct

Subtask #7
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 600 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 63 ms 35652 KB Output is correct
14 Correct 77 ms 35520 KB Output is correct
15 Correct 89 ms 35548 KB Output is correct
16 Correct 55 ms 6236 KB Output is correct
17 Correct 50 ms 6228 KB Output is correct
18 Correct 62 ms 18096 KB Output is correct
19 Correct 38 ms 5340 KB Output is correct
20 Correct 65 ms 35412 KB Output is correct
21 Correct 15 ms 1884 KB Output is correct
22 Correct 56 ms 6648 KB Output is correct
23 Correct 67 ms 8276 KB Output is correct
24 Correct 98 ms 9572 KB Output is correct
25 Correct 69 ms 8632 KB Output is correct
26 Correct 84 ms 14416 KB Output is correct
27 Correct 85 ms 18516 KB Output is correct

Subtask #8
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 47 ms 8016 KB Output is correct
11 Correct 44 ms 18824 KB Output is correct
12 Correct 108 ms 10096 KB Output is correct
13 Correct 77 ms 8860 KB Output is correct
14 Correct 80 ms 11356 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 63 ms 35652 KB Output is correct
19 Correct 77 ms 35520 KB Output is correct
20 Correct 89 ms 35548 KB Output is correct
21 Correct 53 ms 6236 KB Output is correct
22 Correct 48 ms 6236 KB Output is correct
23 Correct 52 ms 18004 KB Output is correct
24 Correct 36 ms 5340 KB Output is correct
25 Correct 62 ms 35676 KB Output is correct
26 Correct 55 ms 6236 KB Output is correct
27 Correct 50 ms 6228 KB Output is correct
28 Correct 62 ms 18096 KB Output is correct
29 Correct 38 ms 5340 KB Output is correct
30 Correct 65 ms 35412 KB Output is correct
31 Correct 5 ms 1624 KB Output is correct
32 Correct 22 ms 6280 KB Output is correct
33 Correct 24 ms 6236 KB Output is correct
34 Correct 30 ms 6236 KB Output is correct
35 Correct 16 ms 5336 KB Output is correct
36 Correct 27 ms 11608 KB Output is correct
37 Correct 32 ms 18008 KB Output is correct
38 Correct 15 ms 1884 KB Output is correct
39 Correct 56 ms 6648 KB Output is correct
40 Correct 67 ms 8276 KB Output is correct
41 Correct 98 ms 9572 KB Output is correct
42 Correct 69 ms 8632 KB Output is correct
43 Correct 84 ms 14416 KB Output is correct
44 Correct 85 ms 18516 KB Output is correct
45 Correct 18 ms 1884 KB Output is correct
46 Correct 60 ms 6624 KB Output is correct
47 Correct 66 ms 8276 KB Output is correct
48 Correct 129 ms 9808 KB Output is correct
49 Correct 69 ms 8852 KB Output is correct
50 Correct 90 ms 14676 KB Output is correct
51 Correct 91 ms 18772 KB Output is correct