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Submission #727156

# Submission time Handle Problem Language Result Execution time Memory
727156 2023-04-20T05:54:19 Z NeroZein Stranded Far From Home (BOI22_island) C++17
100 / 100
 207 ms 34668 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 200005;

int a[N];
int p[N];
bool s[N];
bool ans[N]; 
long long sum[N];
vector<int> g[N]; 
vector<int> sons[N];

int get (int v) {
	if (p[v] < 0) return v;
	return p[v] = get(p[v]); 
}

void Dfs (int v) {
	ans[v] = true;
	for (int u : sons[v]) {
		Dfs(u); 
	}
}

signed main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int n, m;
	cin >> n >> m;
	for (int i = 1; i <= n; ++i) {
		cin >> a[i];
		p[i] = -1;
		sum[i] = a[i]; 
	}
	for (int i = 0; i < m; ++i) {
		int u, v;
		cin >> u >> v;
		g[u].push_back(v);
		g[v].push_back(u); 
	}
	vector<int> ord(n);
	iota(ord.begin(), ord.end(), 1); 
	sort(ord.begin(), ord.end(), [&](int u, int v) {
		return a[u] < a[v];
	});
	for (int i = 0; i < n; ++i) {
		int v = ord[i];
		s[v] = true; 
		for (int u : g[v]) {
			u = get(u); 
			if (!s[u] || u == v) {
				continue;
			}
			if (sum[u] >= a[v]) {
				sons[v].push_back(u); 
			}
			sum[v] += sum[u];
			p[u] = v; 
		}
	}
	Dfs(ord.back());
	for (int i = 1; i <= n; ++i) {
		cout << ans[i];
	}
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9812 KB Output is correct
4 Correct 7 ms 9812 KB Output is correct
5 Correct 6 ms 9868 KB Output is correct
6 Correct 6 ms 9860 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 7 ms 9772 KB Output is correct
9 Correct 7 ms 9940 KB Output is correct
10 Correct 7 ms 9860 KB Output is correct
11 Correct 7 ms 9816 KB Output is correct
12 Correct 7 ms 9784 KB Output is correct
13 Correct 6 ms 9864 KB Output is correct
14 Correct 6 ms 9864 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 6 ms 9684 KB Output is correct
3 Correct 149 ms 25428 KB Output is correct
4 Correct 146 ms 28916 KB Output is correct
5 Correct 186 ms 26956 KB Output is correct
6 Correct 154 ms 27464 KB Output is correct
7 Correct 152 ms 27568 KB Output is correct
8 Correct 166 ms 29264 KB Output is correct
9 Correct 143 ms 26044 KB Output is correct
10 Correct 104 ms 24548 KB Output is correct
11 Correct 107 ms 25828 KB Output is correct
12 Correct 152 ms 27044 KB Output is correct
13 Correct 138 ms 29028 KB Output is correct
14 Correct 142 ms 29108 KB Output is correct
15 Correct 138 ms 34564 KB Output is correct
16 Correct 95 ms 33716 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 171 ms 22740 KB Output is correct
3 Correct 202 ms 27300 KB Output is correct
4 Correct 150 ms 30700 KB Output is correct
5 Correct 131 ms 28960 KB Output is correct
6 Correct 204 ms 27292 KB Output is correct
7 Correct 165 ms 34588 KB Output is correct
8 Correct 173 ms 34604 KB Output is correct
9 Correct 100 ms 33636 KB Output is correct
10 Correct 134 ms 27120 KB Output is correct
11 Correct 143 ms 26520 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 172 ms 23432 KB Output is correct
3 Correct 183 ms 27692 KB Output is correct
4 Correct 189 ms 27960 KB Output is correct
5 Correct 175 ms 28840 KB Output is correct
6 Correct 165 ms 28656 KB Output is correct
7 Correct 111 ms 27820 KB Output is correct
8 Correct 115 ms 31396 KB Output is correct
9 Correct 121 ms 21112 KB Output is correct
10 Correct 151 ms 27152 KB Output is correct
11 Correct 143 ms 26572 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9812 KB Output is correct
4 Correct 7 ms 9812 KB Output is correct
5 Correct 6 ms 9868 KB Output is correct
6 Correct 6 ms 9860 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 7 ms 9772 KB Output is correct
9 Correct 7 ms 9940 KB Output is correct
10 Correct 7 ms 9860 KB Output is correct
11 Correct 7 ms 9816 KB Output is correct
12 Correct 7 ms 9784 KB Output is correct
13 Correct 6 ms 9864 KB Output is correct
14 Correct 6 ms 9864 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 6 ms 9684 KB Output is correct
17 Correct 149 ms 25428 KB Output is correct
18 Correct 146 ms 28916 KB Output is correct
19 Correct 186 ms 26956 KB Output is correct
20 Correct 154 ms 27464 KB Output is correct
21 Correct 152 ms 27568 KB Output is correct
22 Correct 166 ms 29264 KB Output is correct
23 Correct 143 ms 26044 KB Output is correct
24 Correct 104 ms 24548 KB Output is correct
25 Correct 107 ms 25828 KB Output is correct
26 Correct 152 ms 27044 KB Output is correct
27 Correct 138 ms 29028 KB Output is correct
28 Correct 142 ms 29108 KB Output is correct
29 Correct 138 ms 34564 KB Output is correct
30 Correct 95 ms 33716 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 171 ms 22740 KB Output is correct
33 Correct 202 ms 27300 KB Output is correct
34 Correct 150 ms 30700 KB Output is correct
35 Correct 131 ms 28960 KB Output is correct
36 Correct 204 ms 27292 KB Output is correct
37 Correct 165 ms 34588 KB Output is correct
38 Correct 173 ms 34604 KB Output is correct
39 Correct 100 ms 33636 KB Output is correct
40 Correct 134 ms 27120 KB Output is correct
41 Correct 143 ms 26520 KB Output is correct
42 Correct 6 ms 9684 KB Output is correct
43 Correct 172 ms 23432 KB Output is correct
44 Correct 183 ms 27692 KB Output is correct
45 Correct 189 ms 27960 KB Output is correct
46 Correct 175 ms 28840 KB Output is correct
47 Correct 165 ms 28656 KB Output is correct
48 Correct 111 ms 27820 KB Output is correct
49 Correct 115 ms 31396 KB Output is correct
50 Correct 121 ms 21112 KB Output is correct
51 Correct 151 ms 27152 KB Output is correct
52 Correct 143 ms 26572 KB Output is correct
53 Correct 5 ms 9720 KB Output is correct
54 Correct 5 ms 9724 KB Output is correct
55 Correct 5 ms 9696 KB Output is correct
56 Correct 6 ms 9860 KB Output is correct
57 Correct 7 ms 9856 KB Output is correct
58 Correct 6 ms 9812 KB Output is correct
59 Correct 6 ms 9868 KB Output is correct
60 Correct 6 ms 9812 KB Output is correct
61 Correct 6 ms 9924 KB Output is correct
62 Correct 7 ms 9864 KB Output is correct
63 Correct 6 ms 9920 KB Output is correct
64 Correct 8 ms 9812 KB Output is correct
65 Correct 8 ms 9860 KB Output is correct
66 Correct 6 ms 9860 KB Output is correct
67 Correct 158 ms 29716 KB Output is correct
68 Correct 144 ms 28784 KB Output is correct
69 Correct 145 ms 27032 KB Output is correct
70 Correct 147 ms 27524 KB Output is correct
71 Correct 144 ms 27492 KB Output is correct
72 Correct 161 ms 29184 KB Output is correct
73 Correct 149 ms 26256 KB Output is correct
74 Correct 90 ms 24640 KB Output is correct
75 Correct 93 ms 25888 KB Output is correct
76 Correct 155 ms 27080 KB Output is correct
77 Correct 129 ms 28992 KB Output is correct
78 Correct 144 ms 29108 KB Output is correct
79 Correct 179 ms 34604 KB Output is correct
80 Correct 99 ms 33672 KB Output is correct
81 Correct 182 ms 27248 KB Output is correct
82 Correct 206 ms 27364 KB Output is correct
83 Correct 155 ms 30716 KB Output is correct
84 Correct 135 ms 28988 KB Output is correct
85 Correct 175 ms 27344 KB Output is correct
86 Correct 173 ms 34632 KB Output is correct
87 Correct 161 ms 34668 KB Output is correct
88 Correct 138 ms 27280 KB Output is correct
89 Correct 143 ms 26524 KB Output is correct
90 Correct 196 ms 27840 KB Output is correct
91 Correct 194 ms 27768 KB Output is correct
92 Correct 185 ms 28000 KB Output is correct
93 Correct 186 ms 28940 KB Output is correct
94 Correct 185 ms 28596 KB Output is correct
95 Correct 115 ms 27704 KB Output is correct
96 Correct 102 ms 31416 KB Output is correct
97 Correct 133 ms 21020 KB Output is correct
98 Correct 153 ms 27140 KB Output is correct
99 Correct 145 ms 26532 KB Output is correct
100 Correct 48 ms 14028 KB Output is correct
101 Correct 207 ms 27492 KB Output is correct
102 Correct 146 ms 26628 KB Output is correct
103 Correct 185 ms 26328 KB Output is correct
104 Correct 204 ms 27608 KB Output is correct