oj.uz

Submission #677983

# Submission time Handle Problem Language Result Execution time Memory
677983 2023-01-04T21:32:55 Z NK_ Stranded Far From Home (BOI22_island) C++17
100 / 100
 294 ms 53988 KB 
#include <bits/stdc++.h>

using namespace std;

#ifdef DLOCAL
	#define dout cout
#else 
	#define dout cerr
#endif

using ll = long long;

int main() {
	cin.tie(0)->sync_with_stdio(0);
	
	int N, M; cin >> N >> M;
	vector<int> A(N); for(auto& x : A) cin >> x;

	vector<vector<int>> adj(N);

	for(int i = 0; i < M; i++) {
		int u, v; cin >> u >> v; --u, --v;
		adj[u].push_back(v);
		adj[v].push_back(u);
	}

	vector<int> ord(N); iota(begin(ord), end(ord), 0);
	sort(begin(ord), end(ord), [&](int x, int y) {
		return A[x] < A[y];
	});

	string ans(N, '1');

	vector<ll> X(N);
	vector<int> ID(N);
	vector<vector<int>> P(N), R(N);

	for(int i = 0; i < N; i++) {
		X[i] = A[i];
		ID[i] = i;
		P[i] = R[i] = {i};
	}


	auto merge = [&](int u, int v) {
		u = ID[u], v = ID[v];
		if (u == v) return;

		if (size(P[u]) > size(P[v])) swap(u, v);

		for(auto x : P[u]) {
			P[v].push_back(x);
			X[v] += A[x];
			ID[x] = v;
		}

		for(auto x : R[u]) R[v].push_back(x);
	};


	for(auto u : ord) {
		for(auto v : adj[u]) {
			if (A[v] > A[u]) continue;
			int V = ID[v];
			if (X[V] < A[u]) {
				for(auto x : R[V]) ans[x] = '0';
				R[V] = {};
			}
			merge(v, u);
		}
	}


	cout << ans << endl;

	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 724 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 2 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct
9 Correct 2 ms 724 KB Output is correct
10 Correct 2 ms 724 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 2 ms 724 KB Output is correct
13 Correct 1 ms 716 KB Output is correct
14 Correct 2 ms 724 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 156 ms 39680 KB Output is correct
4 Correct 174 ms 48412 KB Output is correct
5 Correct 242 ms 48036 KB Output is correct
6 Correct 272 ms 49832 KB Output is correct
7 Correct 240 ms 50440 KB Output is correct
8 Correct 232 ms 46900 KB Output is correct
9 Correct 194 ms 53988 KB Output is correct
10 Correct 174 ms 43192 KB Output is correct
11 Correct 150 ms 43812 KB Output is correct
12 Correct 273 ms 45296 KB Output is correct
13 Correct 156 ms 49488 KB Output is correct
14 Correct 165 ms 48552 KB Output is correct
15 Correct 153 ms 43704 KB Output is correct
16 Correct 97 ms 42480 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 294 ms 47900 KB Output is correct
3 Correct 285 ms 52412 KB Output is correct
4 Correct 179 ms 51080 KB Output is correct
5 Correct 183 ms 49272 KB Output is correct
6 Correct 278 ms 52428 KB Output is correct
7 Correct 164 ms 43672 KB Output is correct
8 Correct 181 ms 43708 KB Output is correct
9 Correct 113 ms 42464 KB Output is correct
10 Correct 160 ms 47552 KB Output is correct
11 Correct 199 ms 48724 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 271 ms 41612 KB Output is correct
3 Correct 257 ms 47400 KB Output is correct
4 Correct 274 ms 48848 KB Output is correct
5 Correct 240 ms 49076 KB Output is correct
6 Correct 223 ms 44468 KB Output is correct
7 Correct 131 ms 44864 KB Output is correct
8 Correct 107 ms 45552 KB Output is correct
9 Correct 122 ms 24096 KB Output is correct
10 Correct 271 ms 48652 KB Output is correct
11 Correct 189 ms 49088 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 724 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 2 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct
9 Correct 2 ms 724 KB Output is correct
10 Correct 2 ms 724 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 2 ms 724 KB Output is correct
13 Correct 1 ms 716 KB Output is correct
14 Correct 2 ms 724 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 156 ms 39680 KB Output is correct
18 Correct 174 ms 48412 KB Output is correct
19 Correct 242 ms 48036 KB Output is correct
20 Correct 272 ms 49832 KB Output is correct
21 Correct 240 ms 50440 KB Output is correct
22 Correct 232 ms 46900 KB Output is correct
23 Correct 194 ms 53988 KB Output is correct
24 Correct 174 ms 43192 KB Output is correct
25 Correct 150 ms 43812 KB Output is correct
26 Correct 273 ms 45296 KB Output is correct
27 Correct 156 ms 49488 KB Output is correct
28 Correct 165 ms 48552 KB Output is correct
29 Correct 153 ms 43704 KB Output is correct
30 Correct 97 ms 42480 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 294 ms 47900 KB Output is correct
33 Correct 285 ms 52412 KB Output is correct
34 Correct 179 ms 51080 KB Output is correct
35 Correct 183 ms 49272 KB Output is correct
36 Correct 278 ms 52428 KB Output is correct
37 Correct 164 ms 43672 KB Output is correct
38 Correct 181 ms 43708 KB Output is correct
39 Correct 113 ms 42464 KB Output is correct
40 Correct 160 ms 47552 KB Output is correct
41 Correct 199 ms 48724 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 271 ms 41612 KB Output is correct
44 Correct 257 ms 47400 KB Output is correct
45 Correct 274 ms 48848 KB Output is correct
46 Correct 240 ms 49076 KB Output is correct
47 Correct 223 ms 44468 KB Output is correct
48 Correct 131 ms 44864 KB Output is correct
49 Correct 107 ms 45552 KB Output is correct
50 Correct 122 ms 24096 KB Output is correct
51 Correct 271 ms 48652 KB Output is correct
52 Correct 189 ms 49088 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 324 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 2 ms 596 KB Output is correct
57 Correct 2 ms 724 KB Output is correct
58 Correct 2 ms 596 KB Output is correct
59 Correct 2 ms 596 KB Output is correct
60 Correct 2 ms 596 KB Output is correct
61 Correct 2 ms 740 KB Output is correct
62 Correct 2 ms 724 KB Output is correct
63 Correct 2 ms 716 KB Output is correct
64 Correct 1 ms 724 KB Output is correct
65 Correct 2 ms 716 KB Output is correct
66 Correct 2 ms 724 KB Output is correct
67 Correct 164 ms 44084 KB Output is correct
68 Correct 163 ms 48636 KB Output is correct
69 Correct 209 ms 48012 KB Output is correct
70 Correct 251 ms 49820 KB Output is correct
71 Correct 215 ms 50252 KB Output is correct
72 Correct 246 ms 46900 KB Output is correct
73 Correct 178 ms 53860 KB Output is correct
74 Correct 189 ms 43188 KB Output is correct
75 Correct 149 ms 43852 KB Output is correct
76 Correct 246 ms 45344 KB Output is correct
77 Correct 158 ms 49492 KB Output is correct
78 Correct 162 ms 48496 KB Output is correct
79 Correct 166 ms 43644 KB Output is correct
80 Correct 93 ms 42460 KB Output is correct
81 Correct 268 ms 52412 KB Output is correct
82 Correct 272 ms 52492 KB Output is correct
83 Correct 156 ms 51120 KB Output is correct
84 Correct 157 ms 49228 KB Output is correct
85 Correct 291 ms 52400 KB Output is correct
86 Correct 175 ms 43696 KB Output is correct
87 Correct 166 ms 43776 KB Output is correct
88 Correct 187 ms 47540 KB Output is correct
89 Correct 206 ms 48744 KB Output is correct
90 Correct 256 ms 46144 KB Output is correct
91 Correct 259 ms 47292 KB Output is correct
92 Correct 277 ms 48952 KB Output is correct
93 Correct 239 ms 49188 KB Output is correct
94 Correct 216 ms 44412 KB Output is correct
95 Correct 132 ms 44800 KB Output is correct
96 Correct 111 ms 45712 KB Output is correct
97 Correct 110 ms 24132 KB Output is correct
98 Correct 249 ms 48736 KB Output is correct
99 Correct 198 ms 49076 KB Output is correct
100 Correct 37 ms 4872 KB Output is correct
101 Correct 281 ms 48320 KB Output is correct
102 Correct 172 ms 36156 KB Output is correct
103 Correct 209 ms 37792 KB Output is correct
104 Correct 281 ms 44708 KB Output is correct