oj.uz

Submission #852660

# Submission time Handle Problem Language Result Execution time Memory
852660 2023-09-22T12:08:16 Z Trisanu_Das Stranded Far From Home (BOI22_island) C++17
100 / 100
 170 ms 35648 KB 
#include <bits/stdc++.h>
using namespace std;
#define int int64_t
 
int N, M, s[200005], e[200005];
vector<int> g[200005], h[200005];
 
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 [piss, 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 2 ms 12888 KB Output is correct
2 Correct 3 ms 12892 KB Output is correct
3 Correct 2 ms 12892 KB Output is correct
4 Correct 4 ms 12892 KB Output is correct
5 Correct 4 ms 12892 KB Output is correct
6 Correct 3 ms 12892 KB Output is correct
7 Correct 3 ms 12892 KB Output is correct
8 Correct 3 ms 12892 KB Output is correct
9 Correct 3 ms 12892 KB Output is correct
10 Correct 3 ms 13148 KB Output is correct
11 Correct 3 ms 12888 KB Output is correct
12 Correct 3 ms 12980 KB Output is correct
13 Correct 7 ms 13144 KB Output is correct
14 Correct 3 ms 12892 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 3 ms 12908 KB Output is correct
3 Correct 119 ms 29196 KB Output is correct
4 Correct 93 ms 31848 KB Output is correct
5 Correct 94 ms 31424 KB Output is correct
6 Correct 101 ms 32196 KB Output is correct
7 Correct 101 ms 32200 KB Output is correct
8 Correct 107 ms 30684 KB Output is correct
9 Correct 96 ms 33752 KB Output is correct
10 Correct 61 ms 24712 KB Output is correct
11 Correct 108 ms 30768 KB Output is correct
12 Correct 119 ms 30412 KB Output is correct
13 Correct 85 ms 33640 KB Output is correct
14 Correct 94 ms 33388 KB Output is correct
15 Correct 96 ms 30772 KB Output is correct
16 Correct 66 ms 30404 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 136 ms 33652 KB Output is correct
3 Correct 145 ms 33928 KB Output is correct
4 Correct 156 ms 33464 KB Output is correct
5 Correct 84 ms 32872 KB Output is correct
6 Correct 155 ms 33728 KB Output is correct
7 Correct 118 ms 30796 KB Output is correct
8 Correct 115 ms 30732 KB Output is correct
9 Correct 67 ms 30404 KB Output is correct
10 Correct 99 ms 28140 KB Output is correct
11 Correct 119 ms 29828 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 141 ms 29628 KB Output is correct
3 Correct 170 ms 30284 KB Output is correct
4 Correct 157 ms 32452 KB Output is correct
5 Correct 148 ms 34228 KB Output is correct
6 Correct 109 ms 30660 KB Output is correct
7 Correct 83 ms 28488 KB Output is correct
8 Correct 74 ms 32328 KB Output is correct
9 Correct 86 ms 22472 KB Output is correct
10 Correct 109 ms 35648 KB Output is correct
11 Correct 116 ms 29636 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 3 ms 12892 KB Output is correct
3 Correct 2 ms 12892 KB Output is correct
4 Correct 4 ms 12892 KB Output is correct
5 Correct 4 ms 12892 KB Output is correct
6 Correct 3 ms 12892 KB Output is correct
7 Correct 3 ms 12892 KB Output is correct
8 Correct 3 ms 12892 KB Output is correct
9 Correct 3 ms 12892 KB Output is correct
10 Correct 3 ms 13148 KB Output is correct
11 Correct 3 ms 12888 KB Output is correct
12 Correct 3 ms 12980 KB Output is correct
13 Correct 7 ms 13144 KB Output is correct
14 Correct 3 ms 12892 KB Output is correct
15 Correct 2 ms 12892 KB Output is correct
16 Correct 3 ms 12908 KB Output is correct
17 Correct 119 ms 29196 KB Output is correct
18 Correct 93 ms 31848 KB Output is correct
19 Correct 94 ms 31424 KB Output is correct
20 Correct 101 ms 32196 KB Output is correct
21 Correct 101 ms 32200 KB Output is correct
22 Correct 107 ms 30684 KB Output is correct
23 Correct 96 ms 33752 KB Output is correct
24 Correct 61 ms 24712 KB Output is correct
25 Correct 108 ms 30768 KB Output is correct
26 Correct 119 ms 30412 KB Output is correct
27 Correct 85 ms 33640 KB Output is correct
28 Correct 94 ms 33388 KB Output is correct
29 Correct 96 ms 30772 KB Output is correct
30 Correct 66 ms 30404 KB Output is correct
31 Correct 2 ms 12892 KB Output is correct
32 Correct 136 ms 33652 KB Output is correct
33 Correct 145 ms 33928 KB Output is correct
34 Correct 156 ms 33464 KB Output is correct
35 Correct 84 ms 32872 KB Output is correct
36 Correct 155 ms 33728 KB Output is correct
37 Correct 118 ms 30796 KB Output is correct
38 Correct 115 ms 30732 KB Output is correct
39 Correct 67 ms 30404 KB Output is correct
40 Correct 99 ms 28140 KB Output is correct
41 Correct 119 ms 29828 KB Output is correct
42 Correct 2 ms 12892 KB Output is correct
43 Correct 141 ms 29628 KB Output is correct
44 Correct 170 ms 30284 KB Output is correct
45 Correct 157 ms 32452 KB Output is correct
46 Correct 148 ms 34228 KB Output is correct
47 Correct 109 ms 30660 KB Output is correct
48 Correct 83 ms 28488 KB Output is correct
49 Correct 74 ms 32328 KB Output is correct
50 Correct 86 ms 22472 KB Output is correct
51 Correct 109 ms 35648 KB Output is correct
52 Correct 116 ms 29636 KB Output is correct
53 Correct 3 ms 12888 KB Output is correct
54 Correct 3 ms 12888 KB Output is correct
55 Correct 3 ms 12948 KB Output is correct
56 Correct 3 ms 12892 KB Output is correct
57 Correct 3 ms 12888 KB Output is correct
58 Correct 4 ms 12892 KB Output is correct
59 Correct 3 ms 12892 KB Output is correct
60 Correct 3 ms 12892 KB Output is correct
61 Correct 3 ms 12892 KB Output is correct
62 Correct 4 ms 13084 KB Output is correct
63 Correct 3 ms 12888 KB Output is correct
64 Correct 3 ms 12892 KB Output is correct
65 Correct 3 ms 13148 KB Output is correct
66 Correct 4 ms 12892 KB Output is correct
67 Correct 89 ms 29192 KB Output is correct
68 Correct 98 ms 31916 KB Output is correct
69 Correct 98 ms 31492 KB Output is correct
70 Correct 100 ms 32288 KB Output is correct
71 Correct 104 ms 32456 KB Output is correct
72 Correct 124 ms 30664 KB Output is correct
73 Correct 91 ms 33736 KB Output is correct
74 Correct 61 ms 24516 KB Output is correct
75 Correct 111 ms 30668 KB Output is correct
76 Correct 146 ms 30448 KB Output is correct
77 Correct 82 ms 33468 KB Output is correct
78 Correct 92 ms 33472 KB Output is correct
79 Correct 86 ms 30788 KB Output is correct
80 Correct 67 ms 30400 KB Output is correct
81 Correct 128 ms 33720 KB Output is correct
82 Correct 131 ms 33860 KB Output is correct
83 Correct 128 ms 33504 KB Output is correct
84 Correct 88 ms 32816 KB Output is correct
85 Correct 132 ms 33732 KB Output is correct
86 Correct 127 ms 30732 KB Output is correct
87 Correct 107 ms 30664 KB Output is correct
88 Correct 93 ms 28008 KB Output is correct
89 Correct 139 ms 29812 KB Output is correct
90 Correct 142 ms 29604 KB Output is correct
91 Correct 135 ms 30284 KB Output is correct
92 Correct 139 ms 32448 KB Output is correct
93 Correct 141 ms 34124 KB Output is correct
94 Correct 126 ms 30656 KB Output is correct
95 Correct 90 ms 28696 KB Output is correct
96 Correct 71 ms 32452 KB Output is correct
97 Correct 81 ms 22476 KB Output is correct
98 Correct 118 ms 35604 KB Output is correct
99 Correct 114 ms 29712 KB Output is correct
100 Correct 31 ms 15964 KB Output is correct
101 Correct 147 ms 30768 KB Output is correct
102 Correct 121 ms 27244 KB Output is correct
103 Correct 122 ms 26316 KB Output is correct
104 Correct 168 ms 28852 KB Output is correct