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Submission #1116025

# Submission time Handle Problem Language Result Execution time Memory
1116025 2024-11-21T07:56:33 Z simona1230 Magic Tree (CEOI19_magictree) C++17
100 / 100
 246 ms 63848 KB 
#include <bits/stdc++.h>
#define endl '\n'
using namespace std;

long long n,m,k;
long long d[100001];
long long w[100001];
vector<long long> v[100001];

void read()
{
    cin>>n>>m>>k;
    for(long long i=2;i<=n;i++)
    {
        long long p;
        cin>>p;
        v[p].push_back(i);
    }

    for(long long i=1;i<=m;i++)
    {
        long long x;
        cin>>x;
        cin>>d[x]>>w[x];
    }
}

set<long long> s[100001];
unordered_map<long long,long long> mp[100001];

void dfs(long long i)
{
    //cout<<i<<endl;
    for(long long j=0;j<v[i].size();j++)
    {
        long long nb=v[i][j];
        dfs(nb);
        if(s[i].size()<s[nb].size())
        {
            swap(s[i],s[nb]);
            swap(mp[i],mp[nb]);
        }

        for(auto it=s[nb].begin();it!=s[nb].end();it++)
        {
            long long c=*it;
            s[i].insert(c);
            mp[i][c]+=mp[nb][c];
        }
    }

    long long rem=w[i];
    auto it=s[i].upper_bound(d[i]);
    vector<int> h;
    while(rem&&it!=s[i].end())
    {
        long long in=min(rem,mp[i][*it]);
        mp[i][*it]-=in;
        rem-=in;
        it++;
        if(mp[i][*it]==0)h.push_back(*it);
    }

    for(int j=0;j<h.size();j++)
        s[i].erase(h[j]);

    if(d[i])s[i].insert(d[i]);
    mp[i][d[i]]+=w[i];

    /*cout<<"! "<<i<<endl;
    for(auto it=s[i].begin();it!=s[i].end();it++)
        cout<<*it<<" "<<mp[i][*it]<<endl;*/
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    read();
    dfs(1);

    long long ans=0;
    for(auto it=s[1].begin();it!=s[1].end();it++)
        ans+=mp[1][*it];
    cout<<ans<<endl;
    return 0;
}

Compilation message

magictree.cpp: In function 'void dfs(long long int)':
magictree.cpp:34:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     for(long long j=0;j<v[i].size();j++)
      |                       ~^~~~~~~~~~~~
magictree.cpp:64:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |     for(int j=0;j<h.size();j++)
      |                 ~^~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12880 KB Output is correct
2 Correct 3 ms 12880 KB Output is correct
3 Correct 3 ms 12880 KB Output is correct
4 Correct 3 ms 12880 KB Output is correct
5 Correct 3 ms 13048 KB Output is correct
6 Correct 3 ms 12880 KB Output is correct
7 Correct 3 ms 12880 KB Output is correct
8 Correct 4 ms 12880 KB Output is correct
9 Correct 3 ms 12880 KB Output is correct

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 112 ms 36904 KB Output is correct
2 Correct 61 ms 31048 KB Output is correct
3 Correct 236 ms 63848 KB Output is correct
4 Correct 91 ms 40900 KB Output is correct
5 Correct 155 ms 42084 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 13136 KB Output is correct
2 Correct 3 ms 13136 KB Output is correct
3 Correct 3 ms 13136 KB Output is correct
4 Correct 58 ms 41204 KB Output is correct
5 Correct 80 ms 45400 KB Output is correct
6 Correct 88 ms 42584 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 27076 KB Output is correct
2 Correct 72 ms 25960 KB Output is correct
3 Correct 50 ms 28744 KB Output is correct
4 Correct 44 ms 33484 KB Output is correct
5 Correct 47 ms 37960 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12880 KB Output is correct
2 Correct 3 ms 12880 KB Output is correct
3 Correct 3 ms 12880 KB Output is correct
4 Correct 3 ms 12880 KB Output is correct
5 Correct 3 ms 13048 KB Output is correct
6 Correct 3 ms 12880 KB Output is correct
7 Correct 3 ms 12880 KB Output is correct
8 Correct 4 ms 12880 KB Output is correct
9 Correct 3 ms 12880 KB Output is correct
10 Correct 91 ms 32584 KB Output is correct
11 Correct 100 ms 30752 KB Output is correct
12 Correct 52 ms 28760 KB Output is correct
13 Correct 43 ms 33476 KB Output is correct
14 Correct 46 ms 37960 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16464 KB Output is correct
2 Correct 57 ms 30168 KB Output is correct
3 Correct 51 ms 30024 KB Output is correct
4 Correct 75 ms 30024 KB Output is correct
5 Correct 42 ms 29396 KB Output is correct
6 Correct 61 ms 28824 KB Output is correct
7 Correct 37 ms 27976 KB Output is correct

Subtask #7
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12880 KB Output is correct
2 Correct 3 ms 12880 KB Output is correct
3 Correct 3 ms 12880 KB Output is correct
4 Correct 3 ms 12880 KB Output is correct
5 Correct 3 ms 13048 KB Output is correct
6 Correct 3 ms 12880 KB Output is correct
7 Correct 3 ms 12880 KB Output is correct
8 Correct 4 ms 12880 KB Output is correct
9 Correct 3 ms 12880 KB Output is correct
10 Correct 3 ms 13136 KB Output is correct
11 Correct 3 ms 13136 KB Output is correct
12 Correct 3 ms 13136 KB Output is correct
13 Correct 58 ms 41204 KB Output is correct
14 Correct 80 ms 45400 KB Output is correct
15 Correct 88 ms 42584 KB Output is correct
16 Correct 91 ms 32584 KB Output is correct
17 Correct 100 ms 30752 KB Output is correct
18 Correct 52 ms 28760 KB Output is correct
19 Correct 43 ms 33476 KB Output is correct
20 Correct 46 ms 37960 KB Output is correct
21 Correct 29 ms 19732 KB Output is correct
22 Correct 115 ms 39056 KB Output is correct
23 Correct 146 ms 44708 KB Output is correct
24 Correct 214 ms 59224 KB Output is correct
25 Correct 98 ms 40256 KB Output is correct
26 Correct 134 ms 40400 KB Output is correct
27 Correct 114 ms 36004 KB Output is correct

Subtask #8
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12880 KB Output is correct
2 Correct 3 ms 12880 KB Output is correct
3 Correct 3 ms 12880 KB Output is correct
4 Correct 3 ms 12880 KB Output is correct
5 Correct 3 ms 13048 KB Output is correct
6 Correct 3 ms 12880 KB Output is correct
7 Correct 3 ms 12880 KB Output is correct
8 Correct 4 ms 12880 KB Output is correct
9 Correct 3 ms 12880 KB Output is correct
10 Correct 112 ms 36904 KB Output is correct
11 Correct 61 ms 31048 KB Output is correct
12 Correct 236 ms 63848 KB Output is correct
13 Correct 91 ms 40900 KB Output is correct
14 Correct 155 ms 42084 KB Output is correct
15 Correct 3 ms 13136 KB Output is correct
16 Correct 3 ms 13136 KB Output is correct
17 Correct 3 ms 13136 KB Output is correct
18 Correct 58 ms 41204 KB Output is correct
19 Correct 80 ms 45400 KB Output is correct
20 Correct 88 ms 42584 KB Output is correct
21 Correct 73 ms 27076 KB Output is correct
22 Correct 72 ms 25960 KB Output is correct
23 Correct 50 ms 28744 KB Output is correct
24 Correct 44 ms 33484 KB Output is correct
25 Correct 47 ms 37960 KB Output is correct
26 Correct 91 ms 32584 KB Output is correct
27 Correct 100 ms 30752 KB Output is correct
28 Correct 52 ms 28760 KB Output is correct
29 Correct 43 ms 33476 KB Output is correct
30 Correct 46 ms 37960 KB Output is correct
31 Correct 9 ms 16464 KB Output is correct
32 Correct 57 ms 30168 KB Output is correct
33 Correct 51 ms 30024 KB Output is correct
34 Correct 75 ms 30024 KB Output is correct
35 Correct 42 ms 29396 KB Output is correct
36 Correct 61 ms 28824 KB Output is correct
37 Correct 37 ms 27976 KB Output is correct
38 Correct 29 ms 19732 KB Output is correct
39 Correct 115 ms 39056 KB Output is correct
40 Correct 146 ms 44708 KB Output is correct
41 Correct 214 ms 59224 KB Output is correct
42 Correct 98 ms 40256 KB Output is correct
43 Correct 134 ms 40400 KB Output is correct
44 Correct 114 ms 36004 KB Output is correct
45 Correct 32 ms 19792 KB Output is correct
46 Correct 125 ms 39200 KB Output is correct
47 Correct 174 ms 44964 KB Output is correct
48 Correct 246 ms 59684 KB Output is correct
49 Correct 132 ms 40928 KB Output is correct
50 Correct 161 ms 41304 KB Output is correct
51 Correct 120 ms 36516 KB Output is correct