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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
#646338#8938. Crawling on a Treeucup-team173WA 0ms3832kbC++202.0kb2024-10-16 22:18:272024-10-16 22:18:28

Judging History

你现在查看的是最新测评结果

  • [2024-10-16 22:18:28]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3832kb
  • [2024-10-16 22:18:27]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

#define int ll
using ll = long long;
constexpr int inf = 1e18;

signed main() {
    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    int n, m;
    cin >> n >> m;
    vector G(n + 1, vector<array<int, 3>>());
    for(int i = 1; i < n; i++) {
        int u, v, l, k;
        cin >> u >> v >> l >> k;
        G[u].push_back({v, l, k});
        G[v].push_back({u, l, k});
    }
    vector<int> c(n + 1), ek(n + 1), el(n + 1), fa(n + 1);
    for(int i = 2; i <= n; i++) {
        cin >> c[i];
    }
    vector f(n + 1, vector(m + 1, 0ll));
    auto merge = [&](vector<int> f, vector<int> g, int l, int r) -> vector<int> {
        vector<int> res(m + 1, inf);
        int i = 0, j = l;
        while(i < m && f[i] == inf) i++;
        while(j < r && g[j] == inf) j++;
        while(i + j <= m) {
            res[i + j] = f[i] + g[j];
            if(j < r && f[i] + g[j + 1] < f[i + 1] + g[j]) j++;
            else i++;
        }
        return res;
    };
    auto dfs = [&](auto self, int x, int fz) -> void {
        fa[x] = fz;
        for(auto [y, l, k] : G[x]) if(y != fz) {
            ek[y] = k, el[y] = l;
            self(self, y, x);
            c[x] = max(c[x], c[y]);
            for(int i = 0; i <= m; i++) {
                f[y][i] += (2 * max(c[y], i) - i) * el[y];
            }
            if(ek[y] < c[y]) {
                f[x] = vector(m + 1, inf);
            } else {
                f[x] = merge(f[x], f[y], max(2 * c[y] - ek[y], 0ll), min(m, ek[y]));
            }
        }
    };
    dfs(dfs, 1, 0);
    // for(int i = 1; i <= n; i++) {
    //     cerr << i << ": ";
    //     for(int j = 0; j <= m; j++) {
    //         cerr << f[i][j] << " \n"[j == m];
    //     }
    // }
    vector<int> ans(m + 1, inf);
    for(int i = 0; i <= m; i++) {
        ans[max(c[1], i)] = min(ans[max(c[1], i)], f[1][i]);
    }
    for(int i = 1; i <= m; i++) {
        if(ans[i] == inf) ans[i] = -1;
        cout << ans[i] << '\n';
    }
    return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3832kb

input:

4 2
1 2 3 2
2 3 2 1
2 4 5 1
1 1 1

output:

-1
13

result:

ok 2 number(s): "-1 13"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3800kb

input:

4 2
1 2 3 2
2 3 2 1
2 4 5 1
2 2 2

output:

-1
-1

result:

ok 2 number(s): "-1 -1"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3600kb

input:

2 1
2 1 1 1
1

output:

1

result:

ok 1 number(s): "1"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3644kb

input:

2 50
2 1 1 1
50

output:

-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1

result:

ok 50 numbers

Test #5:

score: 0
Accepted
time: 0ms
memory: 3580kb

input:

2 50
2 1 1 50
50

output:

-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
50

result:

ok 50 numbers

Test #6:

score: 0
Accepted
time: 0ms
memory: 3824kb

input:

2 50
1 2 1 100000
50

output:

-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
50

result:

ok 50 numbers

Test #7:

score: 0
Accepted
time: 0ms
memory: 3620kb

input:

50 1
1 2 85524 58896
2 3 9137 9819
3 4 3036 88987
4 5 78909 15766
5 6 76067 34996
6 7 64247 63701
7 8 14 9384
8 9 37698 35418
9 10 51427 91691
10 11 39818 89351
11 12 47887 64083
12 13 43836 44135
13 14 22561 83803
14 15 52617 97413
15 16 41869 83810
16 17 35783 18642
17 18 5514 34601
18 19 50448 49...

output:

3202064

result:

ok 1 number(s): "3202064"

Test #8:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

50 5
1 2 48897 1
2 3 59967 3
3 4 61806 2
4 5 48519 4
5 6 77213 5
6 7 32384 1
7 8 59009 2
8 9 98263 1
9 10 42945 6
10 11 5549 6
11 12 51097 6
12 13 88536 4
13 14 44215 2
14 15 56896 2
15 16 19263 5
16 17 30787 5
17 18 20135 3
18 19 75922 4
19 20 35387 5
20 21 84081 4
21 22 54235 5
22 23 44411 3
23 24...

output:

-1
-1
-1
-1
-1

result:

ok 5 number(s): "-1 -1 -1 -1 -1"

Test #9:

score: -100
Wrong Answer
time: 0ms
memory: 3564kb

input:

50 10
1 2 44914 14
2 3 84737 11
3 4 76461 7
4 5 36207 14
5 6 48479 10
6 7 88167 14
7 8 71415 7
8 9 95290 10
9 10 12553 7
10 11 2718 7
11 12 89004 12
12 13 86605 10
13 14 76252 14
14 15 75076 10
15 16 52024 14
16 17 23365 15
17 18 93829 13
18 19 3765 10
19 20 72010 9
20 21 17119 7
21 22 83633 14
22 2...

output:

-1
-1
-1
-1
-1
-1
-1
-1
-1
-1

result:

wrong answer 3rd numbers differ - expected: '9947212', found: '-1'