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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
#185961#6629. Travelling Tradercy19990 4ms18440kbC++144.5kb2023-09-22 21:41:212023-09-22 21:41:21

Judging History

你现在查看的是最新测评结果

  • [2023-09-22 21:41:21]
  • 评测
  • 测评结果:0
  • 用时:4ms
  • 内存:18440kb
  • [2023-09-22 21:41:21]
  • 提交

answer

#include <bits/stdc++.h>
#define ll long long
using namespace std;
const int N = 2e5 + 10;

int n, k, v[N];
vector<int> G[N];

namespace subtask1 {
	void solve() {
		
	}
}

namespace subtask2 {
	struct node_F {
		int opt, f, g, h;
		node_F(int a = 0, int b = 0, int c = 0, int d = 0) {opt = a; f = b; g = c; h = d;}
	};
	struct node_H {
		int opt, h, g, f, g1, g2;
		node_H(int a = 0, int b = 0, int c = 0, int d = 0, int e = 0, int F = 0) {opt = a; h = b; g = c; f = d; g1 = e; g2 = F;}
	};
	node_F pf[N];
	node_H ph[N];
	int nowg[N];
	ll f[N], g[N], h[N];
	vector<int> ans;
	
	void dfs(int x, int fa) {
		int num = 0; ll sum = 0;
		for (auto y : G[x]) {
			if (y == fa) continue;
			dfs(y, x);
			num++; sum += (ll)v[y];
		}
		if (num == 0) return;
		else {
			int fson = 0, gson = 0, hson = 0;
			for (auto y : G[x]) {
				if (y == fa) continue;
				if (f[y] >= f[fson]) fson = y;
				if (g[y] >= g[gson]) gson = y;
				if (h[y] >= h[hson]) hson = y;
			}
			nowg[x] = gson;
			g[x] = g[gson] + sum;
			if (gson == fson) {
				int ex_fson = 0, ex_gson = 0;
				for (auto y : G[x]) {
					if (y == fa) continue;
					if (y != fson && f[y] >= f[ex_fson]) ex_fson = y;
					if (y != gson && g[y] >= g[ex_gson]) ex_gson = y;
				}
				if (f[fson] + g[ex_gson] > f[ex_fson] + g[gson]) gson = ex_gson;
				else fson = ex_fson;
			}
			if (h[hson] + v[hson] >= f[fson] + g[gson] + sum) {
				f[x] = h[hson] + v[hson];
				pf[x] = node_F(1, 0, 0, hson);
			}else {
				f[x] = f[fson] + g[gson] + sum;
				pf[x] = node_F(2, fson, gson, 0);
			}
			
			int mx1 = 0, mx2 = 0, mx3 = 0, res_g1 = 0, res_g2 = 0, res_f = 0;
			for (auto y : G[x]) {
				if (y == fa) continue;
				if (g[y] >= g[mx1]) mx3 = mx2, mx2 = mx1, mx1 = y;
				else if (g[y] >= g[mx2]) mx3 = mx2, mx2 = y;
				else if (g[y] >= g[mx3]) mx3 = y;
			}
			int tmp_g1, tmp_g2;
			for (auto y : G[x]) {
				if (y == fa) continue;
				if (y == mx1) tmp_g1 = mx2, tmp_g2 = mx3;
				else if (y == mx2) tmp_g1 = mx1, tmp_g2 = mx3;
				else tmp_g1 = mx1, tmp_g1 = mx2;
				if (g[tmp_g1] + g[tmp_g2] + f[y] >= g[res_g1] + g[res_g2] + f[res_f]) res_g1 = tmp_g1, res_g2 = tmp_g2, res_f = y;
			}
			int res_h = 0, res_g = 0, tmp_g;
			for (auto y : G[x]) {
				if (y == fa) continue;
				if (y == mx1) tmp_g = mx2;
				else tmp_g = mx1;
				if (g[tmp_g] + h[y] >= g[res_g] + h[res_h]) res_g = tmp_g, res_h = y;
			}
			if (g[res_g] + h[res_h] >= g[res_g1] + g[res_g2] + f[res_f]) {
				h[x] = g[res_g] + h[res_h] + sum;
				ph[x] = node_H(1, res_h, res_g, 0, 0, 0);
			}else {
				h[x] = g[res_g1] + g[res_g2] + f[res_f] + sum;
				ph[x] = node_H(2, 0, 0, res_f, res_g1, res_g2);
			}
		}
	}
	
	void work(int x, int fa, int opt, vector<int> &vec) {
		if (x == 0) return;
		if (opt == 0) {
			vec.push_back(x);
			if (pf[x].opt == 1) work(pf[x].h, x, 2, vec);
			else {
				vector<int> tmp;
				work(pf[x].g, x, 1, tmp);
				reverse(tmp.begin(), tmp.end());
				for (auto y : tmp) vec.push_back(y);
				for (auto y : G[x]) {
					if (y == pf[x].f || y == pf[x].g || y == fa) continue;
					vec.push_back(y);
				}
				work(pf[x].f, x, 0, tmp);
			}
		}else if (opt == 1) {
			vec.push_back(x);
			vector<int> tmp;
			work(nowg[x], x, 1, tmp);
			reverse(tmp.begin(), tmp.end());
			for (auto y : tmp) vec.push_back(y);
			for (auto y : G[x]) {
				if (y == nowg[x] || y == fa) continue;
				vec.push_back(y);
			}
		}else {
			if (ph[x].opt == 1) {
				for (auto y : G[x]) {
					if (y == fa || y == ph[x].g || y == ph[x].h) continue;
					vec.push_back(y);
				}
				work(ph[x].g, x, 1, vec);
				vec.push_back(x);
				work(ph[x].h, x, 2, vec);
			}else {
				work(ph[x].g1, x, 1, vec);
				vec.push_back(x);
				vector<int> tmp;
				work(ph[x].g2, x, 1, tmp);
				reverse(tmp.begin(), tmp.end());
				for (auto y : tmp) vec.push_back(y);
				for (auto y : G[x]) {
					if (y == fa || y == ph[x].g1 || y == ph[x].g2 || y == ph[x].f) continue;
					vec.push_back(y);
				}
				work(ph[x].f, x, 0, vec);
			}
		}
	}
	
	void solve() {
		dfs(1, 1);
		printf("%lld\n", f[1] + v[1]);
		work(1, 1, 0, ans);
		printf("%d\n", ans.size());
		for (auto x : ans) printf("%d ", x);
	}
}

namespace subtask3 {
	void solve() {
		
	}
}

int main() {
	scanf("%d%d", &n, &k);
	for (int i = 1, x, y; i < n; ++i) {
		scanf("%d%d", &x, &y);
		G[x].push_back(y); G[y].push_back(x);
	}
	for (int i = 1; i <= n; ++i) scanf("%d", &v[i]);
	if (k == 1) subtask1 :: solve();
	else if (k == 2) subtask2 :: solve();
	else subtask3 :: solve();
}

详细

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 0ms
memory: 16412kb

input:

2 1
1 2
255959470 961356354

output:


result:

wrong output format Unexpected end of file - int64 expected

Subtask #2:

score: 0
Wrong Answer

Test #12:

score: 7
Accepted
time: 0ms
memory: 18148kb

input:

2 2
2 1
243296356 635616793

output:

878913149
2
1 2 

result:

ok correct!

Test #13:

score: 0
Accepted
time: 4ms
memory: 18152kb

input:

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

output:

33
10
1 6 5 7 9 3 10 4 2 8 

result:

ok correct!

Test #14:

score: -7
Wrong Answer
time: 0ms
memory: 18440kb

input:

200 2
150 170
21 33
96 152
143 26
136 70
92 159
34 164
163 182
74 115
93 61
151 83
81 119
10 146
114 170
39 83
139 4
173 41
193 96
87 57
14 164
107 51
45 15
157 17
43 183
96 30
11 137
55 18
138 81
87 12
112 122
159 82
195 185
75 71
16 191
33 88
70 195
149 114
106 160
96 118
92 44
9 141
107 143
151 2...

output:

57921623677
69
1 89 194 179 151 39 83 135 27 112 40 125 180 120 117 122 33 131 105 96 114 171 28 110 149 170 59 193 21 88 162 94 138 45 129 25 78 62 199 36 127 15 99 72 12 76 70 53 159 17 178 24 44 41 67 173 186 42 116 92 82 197 101 5 32 121 87 29 198 

result:

wrong answer your claimed profit is 57921623677 but the profit of your plan is 41436947372

Subtask #3:

score: 0
Skipped

Dependency #2:

0%

Subtask #4:

score: 0
Skipped

Dependency #3:

0%

Subtask #5:

score: 0
Wrong Answer

Test #83:

score: 0
Wrong Answer
time: 4ms
memory: 16600kb

input:

2000 3
1359 90
1703 163
158 188
360 1501
195 664
1414 215
1546 1756
536 1096
1726 1223
1150 104
1757 703
1982 282
1023 998
1180 419
576 1759
1496 1993
44 670
1703 952
855 849
1998 1399
1280 980
1533 1090
1270 678
1680 387
469 1734
1799 263
473 588
303 226
5 295
1489 1471
1094 1667
1912 210
1368 1360...

output:


result:

wrong output format Unexpected end of file - int64 expected

Subtask #6:

score: 0
Skipped

Dependency #5:

0%