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Submission #1099008

# Submission time Handle Problem Language Result Execution time Memory
1099008 2024-10-10T12:08:53 Z ohad Stranded Far From Home (BOI22_island) C++14
100 / 100
 268 ms 28060 KB 
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;
typedef long long ll;
typedef vector<ll> vll;
void init(ll n, vll& par) {
	for (ll i = 0; i < n; i++)
	{
		par[i] = i;
	}
}
ll find(ll a, vll& par) {
	if (par[a] == a)
		return a;
	return par[a] = find(par[a], par);
}

int main() {
	ll n, m;
	cin >> n >> m;
	vll num(n);
	for (auto& i : num)
	{
		cin >> i;
	}
	vector<vll> nei(n);
	for (int i = 0; i < m; i++)
	{
		ll a, b;
		cin >> a >> b;
		nei[a - 1].push_back(b - 1);
		nei[b - 1].push_back(a - 1);
	}
	vll par(n);
	vll overtake(n);
	init(n, par);
	init(n, overtake);
	vector<pair<ll, ll>> pairs;
	vll visited(n, 0);

	for (int i = 0; i < n; i++)
	{
		pairs.push_back({ num[i],i });
	}
	sort(pairs.begin(), pairs.end());

	for (int i = 0; i < n; i++)
	{
		ll v = pairs[i].second;
		ll cost = pairs[i].first;
		visited[v] = 1;
		for (int u : nei[v])
		{
			if (!visited[u])
				continue;
			u = find(u, par);
			if (u == v)
				continue;
			num[v] += num[u];
			par[u] = v;
			if (num[u] >= cost)
				overtake[u] = v;
		}
	}
	ll v = pairs[n - 1].second;
	for (int i = 0; i < n; i++)
	{
		if (find(i, overtake) == v)
			cout << 1;
		else
			cout << 0;
	}
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 2 ms 604 KB Output is correct
9 Correct 2 ms 556 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 2 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 568 KB Output is correct
14 Correct 2 ms 604 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 177 ms 26552 KB Output is correct
4 Correct 142 ms 26808 KB Output is correct
5 Correct 170 ms 25792 KB Output is correct
6 Correct 175 ms 26560 KB Output is correct
7 Correct 167 ms 26564 KB Output is correct
8 Correct 200 ms 27836 KB Output is correct
9 Correct 170 ms 27584 KB Output is correct
10 Correct 131 ms 26436 KB Output is correct
11 Correct 151 ms 27708 KB Output is correct
12 Correct 153 ms 25280 KB Output is correct
13 Correct 139 ms 25648 KB Output is correct
14 Correct 130 ms 25776 KB Output is correct
15 Correct 155 ms 25536 KB Output is correct
16 Correct 122 ms 24776 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 175 ms 25796 KB Output is correct
3 Correct 205 ms 25688 KB Output is correct
4 Correct 166 ms 26808 KB Output is correct
5 Correct 132 ms 25048 KB Output is correct
6 Correct 170 ms 25580 KB Output is correct
7 Correct 166 ms 25532 KB Output is correct
8 Correct 179 ms 25540 KB Output is correct
9 Correct 140 ms 24676 KB Output is correct
10 Correct 173 ms 25024 KB Output is correct
11 Correct 156 ms 24260 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 268 ms 26564 KB Output is correct
3 Correct 234 ms 26620 KB Output is correct
4 Correct 239 ms 26556 KB Output is correct
5 Correct 216 ms 26560 KB Output is correct
6 Correct 207 ms 25656 KB Output is correct
7 Correct 185 ms 27528 KB Output is correct
8 Correct 131 ms 26304 KB Output is correct
9 Correct 175 ms 16044 KB Output is correct
10 Correct 159 ms 25448 KB Output is correct
11 Correct 179 ms 24256 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 2 ms 604 KB Output is correct
9 Correct 2 ms 556 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 2 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 568 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 177 ms 26552 KB Output is correct
18 Correct 142 ms 26808 KB Output is correct
19 Correct 170 ms 25792 KB Output is correct
20 Correct 175 ms 26560 KB Output is correct
21 Correct 167 ms 26564 KB Output is correct
22 Correct 200 ms 27836 KB Output is correct
23 Correct 170 ms 27584 KB Output is correct
24 Correct 131 ms 26436 KB Output is correct
25 Correct 151 ms 27708 KB Output is correct
26 Correct 153 ms 25280 KB Output is correct
27 Correct 139 ms 25648 KB Output is correct
28 Correct 130 ms 25776 KB Output is correct
29 Correct 155 ms 25536 KB Output is correct
30 Correct 122 ms 24776 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 175 ms 25796 KB Output is correct
33 Correct 205 ms 25688 KB Output is correct
34 Correct 166 ms 26808 KB Output is correct
35 Correct 132 ms 25048 KB Output is correct
36 Correct 170 ms 25580 KB Output is correct
37 Correct 166 ms 25532 KB Output is correct
38 Correct 179 ms 25540 KB Output is correct
39 Correct 140 ms 24676 KB Output is correct
40 Correct 173 ms 25024 KB Output is correct
41 Correct 156 ms 24260 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 268 ms 26564 KB Output is correct
44 Correct 234 ms 26620 KB Output is correct
45 Correct 239 ms 26556 KB Output is correct
46 Correct 216 ms 26560 KB Output is correct
47 Correct 207 ms 25656 KB Output is correct
48 Correct 185 ms 27528 KB Output is correct
49 Correct 131 ms 26304 KB Output is correct
50 Correct 175 ms 16044 KB Output is correct
51 Correct 159 ms 25448 KB Output is correct
52 Correct 179 ms 24256 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 2 ms 600 KB Output is correct
57 Correct 2 ms 488 KB Output is correct
58 Correct 2 ms 600 KB Output is correct
59 Correct 2 ms 480 KB Output is correct
60 Correct 2 ms 604 KB Output is correct
61 Correct 2 ms 600 KB Output is correct
62 Correct 2 ms 604 KB Output is correct
63 Correct 2 ms 600 KB Output is correct
64 Correct 2 ms 604 KB Output is correct
65 Correct 1 ms 520 KB Output is correct
66 Correct 1 ms 604 KB Output is correct
67 Correct 171 ms 26620 KB Output is correct
68 Correct 134 ms 26592 KB Output is correct
69 Correct 152 ms 25724 KB Output is correct
70 Correct 166 ms 26564 KB Output is correct
71 Correct 159 ms 26564 KB Output is correct
72 Correct 195 ms 28060 KB Output is correct
73 Correct 169 ms 27588 KB Output is correct
74 Correct 133 ms 26436 KB Output is correct
75 Correct 151 ms 27604 KB Output is correct
76 Correct 155 ms 25280 KB Output is correct
77 Correct 145 ms 25536 KB Output is correct
78 Correct 134 ms 25792 KB Output is correct
79 Correct 159 ms 25696 KB Output is correct
80 Correct 131 ms 24772 KB Output is correct
81 Correct 180 ms 25408 KB Output is correct
82 Correct 189 ms 25548 KB Output is correct
83 Correct 216 ms 26812 KB Output is correct
84 Correct 132 ms 24936 KB Output is correct
85 Correct 187 ms 25540 KB Output is correct
86 Correct 183 ms 25680 KB Output is correct
87 Correct 179 ms 25524 KB Output is correct
88 Correct 146 ms 25020 KB Output is correct
89 Correct 155 ms 24256 KB Output is correct
90 Correct 178 ms 26564 KB Output is correct
91 Correct 176 ms 26404 KB Output is correct
92 Correct 184 ms 26816 KB Output is correct
93 Correct 179 ms 26556 KB Output is correct
94 Correct 169 ms 25548 KB Output is correct
95 Correct 154 ms 27556 KB Output is correct
96 Correct 128 ms 26304 KB Output is correct
97 Correct 116 ms 16076 KB Output is correct
98 Correct 154 ms 25484 KB Output is correct
99 Correct 151 ms 24240 KB Output is correct
100 Correct 66 ms 6904 KB Output is correct
101 Correct 192 ms 26548 KB Output is correct
102 Correct 182 ms 23236 KB Output is correct
103 Correct 178 ms 23940 KB Output is correct
104 Correct 212 ms 26416 KB Output is correct