oj.uz

Submission #572841

# Submission time Handle Problem Language Result Execution time Memory
572841 2022-06-05T11:16:36 Z ritul_kr_singh Stranded Far From Home (BOI22_island) C++17
100 / 100
 235 ms 35528 KB 
#include <bits/stdc++.h>
using namespace std;
#define int int64_t
#define sp << ' ' <<
#define nl << '\n'

const int LIM = 2e5;

int N, M, s[LIM], e[LIM];
vector<int> g[LIM], h[LIM];

int find(int u) {
	return e[u] < 0 ? u : e[u] = find(e[u]);
}

signed main() {
	cin.tie(0)->sync_with_stdio(0);
	cin >> N >> M;

	array<int, 2> byS[N];

	for(int i = 0; i < N; ++i) {
		cin >> s[i];
		e[i] = -1;
		h[i] = {i};
		byS[i] = {s[i], i};
	}
	for(int i = 0; i < M; ++i) {
		int u, v; cin >> u >> v;
		--u, --v;
		if(make_pair(s[u], u) < make_pair(s[v], v)) swap(u, v);
		g[u].push_back(v);
	}
	sort(byS, byS + N);

	for(auto [_, r] : byS) {
		int u = find(r);
		for(int &v : g[r]) {
			v = find(v);
			if(s[v] < s[u]) h[v].clear();
			if(size(h[v]) > size(h[u]))
				h[u].swap(h[v]);
		}
		for(int &v : g[r]) if((v = find(v)) != u) {
			for(int y : h[v]) h[u].push_back(y);
			s[u] += s[v];
			e[v] = u;
		}
	}

	for(int u : h[find(0)])
		s[u] = -1;
	for(int i = 0; i < N; ++i)
		cout << (s[i] < 0);
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 7 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 6 ms 9812 KB Output is correct
6 Correct 7 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 7 ms 9940 KB Output is correct
10 Correct 6 ms 9940 KB Output is correct
11 Correct 6 ms 9940 KB Output is correct
12 Correct 6 ms 9940 KB Output is correct
13 Correct 6 ms 9976 KB Output is correct
14 Correct 6 ms 9932 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 5 ms 9684 KB Output is correct
3 Correct 128 ms 29264 KB Output is correct
4 Correct 129 ms 31780 KB Output is correct
5 Correct 141 ms 31332 KB Output is correct
6 Correct 153 ms 32152 KB Output is correct
7 Correct 144 ms 32444 KB Output is correct
8 Correct 142 ms 30640 KB Output is correct
9 Correct 141 ms 33700 KB Output is correct
10 Correct 108 ms 24392 KB Output is correct
11 Correct 158 ms 30684 KB Output is correct
12 Correct 146 ms 30408 KB Output is correct
13 Correct 143 ms 33472 KB Output is correct
14 Correct 144 ms 33296 KB Output is correct
15 Correct 128 ms 30648 KB Output is correct
16 Correct 83 ms 30436 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 182 ms 33572 KB Output is correct
3 Correct 219 ms 33848 KB Output is correct
4 Correct 160 ms 33456 KB Output is correct
5 Correct 120 ms 32900 KB Output is correct
6 Correct 184 ms 33704 KB Output is correct
7 Correct 190 ms 30652 KB Output is correct
8 Correct 139 ms 30604 KB Output is correct
9 Correct 87 ms 30452 KB Output is correct
10 Correct 130 ms 27936 KB Output is correct
11 Correct 153 ms 29736 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 235 ms 29492 KB Output is correct
3 Correct 186 ms 30224 KB Output is correct
4 Correct 209 ms 32456 KB Output is correct
5 Correct 197 ms 34044 KB Output is correct
6 Correct 150 ms 30448 KB Output is correct
7 Correct 126 ms 28544 KB Output is correct
8 Correct 111 ms 32432 KB Output is correct
9 Correct 101 ms 20784 KB Output is correct
10 Correct 156 ms 35516 KB Output is correct
11 Correct 180 ms 29612 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 7 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 6 ms 9812 KB Output is correct
6 Correct 7 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 7 ms 9940 KB Output is correct
10 Correct 6 ms 9940 KB Output is correct
11 Correct 6 ms 9940 KB Output is correct
12 Correct 6 ms 9940 KB Output is correct
13 Correct 6 ms 9976 KB Output is correct
14 Correct 6 ms 9932 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 5 ms 9684 KB Output is correct
17 Correct 128 ms 29264 KB Output is correct
18 Correct 129 ms 31780 KB Output is correct
19 Correct 141 ms 31332 KB Output is correct
20 Correct 153 ms 32152 KB Output is correct
21 Correct 144 ms 32444 KB Output is correct
22 Correct 142 ms 30640 KB Output is correct
23 Correct 141 ms 33700 KB Output is correct
24 Correct 108 ms 24392 KB Output is correct
25 Correct 158 ms 30684 KB Output is correct
26 Correct 146 ms 30408 KB Output is correct
27 Correct 143 ms 33472 KB Output is correct
28 Correct 144 ms 33296 KB Output is correct
29 Correct 128 ms 30648 KB Output is correct
30 Correct 83 ms 30436 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 182 ms 33572 KB Output is correct
33 Correct 219 ms 33848 KB Output is correct
34 Correct 160 ms 33456 KB Output is correct
35 Correct 120 ms 32900 KB Output is correct
36 Correct 184 ms 33704 KB Output is correct
37 Correct 190 ms 30652 KB Output is correct
38 Correct 139 ms 30604 KB Output is correct
39 Correct 87 ms 30452 KB Output is correct
40 Correct 130 ms 27936 KB Output is correct
41 Correct 153 ms 29736 KB Output is correct
42 Correct 5 ms 9684 KB Output is correct
43 Correct 235 ms 29492 KB Output is correct
44 Correct 186 ms 30224 KB Output is correct
45 Correct 209 ms 32456 KB Output is correct
46 Correct 197 ms 34044 KB Output is correct
47 Correct 150 ms 30448 KB Output is correct
48 Correct 126 ms 28544 KB Output is correct
49 Correct 111 ms 32432 KB Output is correct
50 Correct 101 ms 20784 KB Output is correct
51 Correct 156 ms 35516 KB Output is correct
52 Correct 180 ms 29612 KB Output is correct
53 Correct 5 ms 9684 KB Output is correct
54 Correct 5 ms 9684 KB Output is correct
55 Correct 5 ms 9684 KB Output is correct
56 Correct 6 ms 9812 KB Output is correct
57 Correct 6 ms 9940 KB Output is correct
58 Correct 6 ms 9812 KB Output is correct
59 Correct 7 ms 9876 KB Output is correct
60 Correct 6 ms 9848 KB Output is correct
61 Correct 6 ms 9940 KB Output is correct
62 Correct 7 ms 9972 KB Output is correct
63 Correct 8 ms 9856 KB Output is correct
64 Correct 6 ms 9940 KB Output is correct
65 Correct 6 ms 9940 KB Output is correct
66 Correct 6 ms 9880 KB Output is correct
67 Correct 140 ms 29188 KB Output is correct
68 Correct 130 ms 31736 KB Output is correct
69 Correct 142 ms 31376 KB Output is correct
70 Correct 168 ms 32164 KB Output is correct
71 Correct 136 ms 32264 KB Output is correct
72 Correct 172 ms 30632 KB Output is correct
73 Correct 136 ms 33608 KB Output is correct
74 Correct 81 ms 24400 KB Output is correct
75 Correct 150 ms 30596 KB Output is correct
76 Correct 173 ms 30376 KB Output is correct
77 Correct 125 ms 33516 KB Output is correct
78 Correct 126 ms 33328 KB Output is correct
79 Correct 121 ms 30672 KB Output is correct
80 Correct 104 ms 30504 KB Output is correct
81 Correct 193 ms 33500 KB Output is correct
82 Correct 178 ms 33788 KB Output is correct
83 Correct 165 ms 33520 KB Output is correct
84 Correct 141 ms 32884 KB Output is correct
85 Correct 195 ms 33636 KB Output is correct
86 Correct 147 ms 30612 KB Output is correct
87 Correct 149 ms 30656 KB Output is correct
88 Correct 128 ms 27972 KB Output is correct
89 Correct 157 ms 29692 KB Output is correct
90 Correct 188 ms 29520 KB Output is correct
91 Correct 220 ms 30320 KB Output is correct
92 Correct 196 ms 32344 KB Output is correct
93 Correct 192 ms 34076 KB Output is correct
94 Correct 169 ms 30484 KB Output is correct
95 Correct 124 ms 28576 KB Output is correct
96 Correct 92 ms 32380 KB Output is correct
97 Correct 100 ms 20852 KB Output is correct
98 Correct 150 ms 35528 KB Output is correct
99 Correct 166 ms 29504 KB Output is correct
100 Correct 40 ms 12736 KB Output is correct
101 Correct 196 ms 30680 KB Output is correct
102 Correct 140 ms 26420 KB Output is correct
103 Correct 165 ms 25668 KB Output is correct
104 Correct 216 ms 28724 KB Output is correct