oj.uz

Submission #775743

# Submission time Handle Problem Language Result Execution time Memory
775743 2023-07-06T21:00:11 Z danikoynov Magic Tree (CEOI19_magictree) C++14
34 / 100
 2000 ms 31200 KB 
/**
 ____ ____ ____ ____ ____ ____
||l |||e |||i |||n |||a |||d ||
||__|||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|/__\|

**/

#include<bits/stdc++.h>
#define endl '\n'

using namespace std;
typedef long long ll;

void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}

const int maxn = 1e5 + 10, maxk = 21;
int n, m, k, p[maxn], w[maxn], d[maxn];
ll dp[maxn][maxk], diff[maxn][maxk];
vector < int > adj[maxn];

void dfs(int v)
{
    for (int u : adj[v])
    {
        dfs(u);
        for (int j = 0; j <= k; j ++)
            diff[v][j] += diff[u][j];
        //for (int j = 2; j <= k; j ++)
        //dp[v][j] = max(dp[v][j], dp[v][j - 1]);
        /**int pt = j;
        ll sum = diff[v][j];
        while(sum < 0)
        {

        }*/
    }



    if (d[v] != 0)
    {
        diff[v][d[v] - 1] += w[v];
        diff[v][d[v]] -= w[v];
    }
    for (int j = 0; j < k; j ++)
    {
        if (diff[v][j] < 0)
        {
            diff[v][j + 1] += diff[v][j];
            diff[v][j] = 0;
        }
    }
}


///ll sum = 0;
///for (int j = 1)
/**cout << "----------" << endl;
cout << v << endl;
for (int j = 1; j < k; j ++)
    cout << diff[v][j] << " ";
cout << endl;*/


void solve()
{
    cin >> n >> m >> k;
    for (int i = 2; i <= n; i ++)
    {
        cin >> p[i];
        adj[p[i]].push_back(i);
    }
    for (int i = 1; i <= m; i ++)
    {
        int v;
        cin >> v >> d[v] >> w[v];
    }

    dfs(1);
    ll ans = 0;
    for (int j = 0; j < k; j ++)
        ans = ans + diff[1][j];
    cout  << ans << endl;
}

int main()
{
    solve();
    return 0;
}
/**
6 4 10
1
2
1
4
4
3 3 4
4 2 5
5 5 1
6 3 9
*/

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 1 ms 2644 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct

Subtask #2
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2059 ms 22348 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 2900 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 21780 KB Output is correct
2 Correct 97 ms 21784 KB Output is correct
3 Correct 102 ms 25768 KB Output is correct
4 Correct 88 ms 20672 KB Output is correct
5 Correct 95 ms 31200 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 1 ms 2644 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 95 ms 21860 KB Output is correct
11 Correct 88 ms 21808 KB Output is correct
12 Correct 95 ms 25856 KB Output is correct
13 Correct 67 ms 20772 KB Output is correct
14 Correct 79 ms 31124 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 1733 ms 6964 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 1 ms 2644 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Incorrect 3 ms 2900 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #8
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 1 ms 2644 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Execution timed out 2059 ms 22348 KB Time limit exceeded
11 Halted 0 ms 0 KB -