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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#648234#6430. Monster Huntershabi666#WA 1ms5724kbC++202.4kb2024-10-17 17:48:212024-10-17 17:48:21

Judging History

你现在查看的是最新测评结果

  • [2024-10-17 17:48:21]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:5724kb
  • [2024-10-17 17:48:21]
  • 提交

answer

#include <bits/stdc++.h>
#define endl '\n'
#define int long long
using namespace std;

const int N = 2e3 + 5;

vector<int> edges[N];
int f[N][N][2], g[N];
int t[N][2];
int cnt[N];
int sz[N];
int hp[N];

void dfs0(int u) {
    g[u] = hp[u];
    sz[u] = 1;
    for (int v : edges[u]) {
        g[u] += hp[v];
    }
    for (int v : edges[u]) {
        dfs0(v);
        sz[u] += sz[v];
        g[u] += g[v];
    }
}

void dfs(int u, int n) {
    cnt[u] = 1;
    for (int i = 0; i <= n; i++) {
        f[u][i][0] = f[u][i][1] = 1e2;
    }
    // f[u][0][0] = g[u];
    // f[u][1][1] = g[u] - hp[u];
    // f[u][sz[u]][1] = 0;
    // f[u][sz[u] - 1][0] = hp[u];
    f[u][0][0] = hp[u];
    f[u][1][1] = 0;
    for (int v : edges[u]) {
        dfs(v, n);
        for (int j = 0; j <= cnt[u] + cnt[v]; j++) {
            t[j][0] = f[u][j][0];
            t[j][1] = f[u][j][1];
        }
        for (int j = cnt[u] + cnt[v]; j >= 0; j--) { 
            for (int k = 0; k <= min(cnt[v], j); k++) {
                if (k == 0) {
                    f[u][j][1] = f[u][j - k][1] + min(f[v][k][0], f[v][k][1]);
                    f[u][j][0] = f[u][j - k][0] + min(f[v][k][0] + hp[v], f[v][k][1]); 
                }
                else {
                    f[u][j][1] = min(f[u][j][1], f[u][j - k][1] + min(f[v][k][0], f[v][k][1]));
                    f[u][j][0] = min(f[u][j][0], f[u][j - k][0] + min(f[v][k][0] + hp[v], f[v][k][1])); 
                }
            }
        }
        // cout << u << " " << v << endl;
        // for (int j = 0; j <= sz[u]; j++) {
        //     cout << f[u][j][0] << " " << f[u][j][1] << endl;
        // }
        cnt[u] += cnt[v];
    }
}

void solve() {
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) {
        edges[i].clear();
        for (int j = 0; j <= n; j++) {
            f[i][j][0] = f[i][j][1] = 0;
        }
    }
    for (int i = 2; i <= n; i++) {
        int p;
        cin >> p;
        edges[p].emplace_back(i);
    }
    for (int i = 1; i <= n; i++) {
        cin >> hp[i];
    }
    
    dfs0(1);
    dfs(1, n);
    for (int i = 0; i <= n; i++) {
        cout << min(f[1][i][0], f[1][i][1]) << " \n"[i == n];
    }
}

signed main() {
    ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);

    int T = 1;
    cin >> T;
    while (T--) solve();

    return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 5724kb

input:

3
5
1 2 3 4
1 2 3 4 5
9
1 2 3 4 3 4 6 6
8 4 9 4 4 5 2 4 1
12
1 2 2 4 5 3 4 3 8 10 11
9 1 3 5 10 10 7 3 7 9 4 9

output:

29 16 9 4 1 0
74 47 35 25 15 11 7 3 1 0
145 115 93 73 55 42 32 22 14 8 4 1 0

result:

ok 29 tokens

Test #2:

score: 0
Accepted
time: 0ms
memory: 3712kb

input:

179
20
1 1 1 4 5 5 7 7 9 9 11 12 13 14 5 16 17 16 19
3 9 3 2 7 7 2 8 5 7 5 4 7 4 2 4 9 2 7 9
19
1 1 3 4 3 6 7 6 6 10 10 12 13 13 12 16 16 18
8 8 3 6 10 1 1 1 2 2 3 3 3 10 5 5 7 10 5
2
1
10 4
2
1
2 7
14
1 1 3 4 4 6 4 8 9 10 11 8 13
4 4 6 6 10 8 9 5 7 1 4 7 9 8
6
1 2 3 3 5
2 7 5 6 1 6
11
1 2 3 3 5 6 6...

output:

209 182 159 137 117 99 81 65 56 47 39 32 25 19 15 11 8 6 4 2 0
178 151 129 108 89 74 64 54 44 36 29 23 18 13 10 7 5 2 1 0
18 4 0
16 2 0
172 137 111 93 78 63 49 39 31 23 16 10 5 1 0
52 33 21 9 3 1 0
109 72 53 39 29 22 16 10 5 2 1 0
105 69 47 35 25 17 12 7 3 0
156 133 113 97 82 68 56 44 33 26 19 14 10...

result:

ok 2178 tokens

Test #3:

score: -100
Wrong Answer
time: 1ms
memory: 3712kb

input:

177
10
1 2 3 3 3 6 7 8 3
750920741 600457069 885939487 614833472 917972842 716271451 234536309 280049219 394290544 802674020
5
1 2 2 4
381361244 652246733 111336853 652733347 864548837
7
1 2 2 4 4 4
374076965 100213690 316923584 132783452 321143617 617096325 590521323
14
1 1 3 4 4 6 6 6 4 10 11 10 1...

output:

1000 900 800 700 600 500 400 300 200 100 0
500 400 300 200 100 0
700 600 500 400 300 200 100 0
1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0
200 100 0
2000 1900 1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0
1600 1500 1400 1300 1200 1100 1000 900 ...

result:

wrong answer 1st words differ - expected: '11644969567', found: '1000'