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Submission #1098866

# Submission time Handle Problem Language Result Execution time Memory
1098866 2024-10-10T09:03:57 Z not_amir Stranded Far From Home (BOI22_island) C++14
100 / 100
 113 ms 21452 KB 
#include <bits/stdc++.h>
using namespace std;

typedef pair<int, int> pii;
typedef long long ll;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n, m;
    cin >> n >> m;
    vector<pii> village(n);
    vector<vector<int>> G(n + 1);
    vector<int> parent(n + 1), parent1(n + 1);
    vector<ll> vsize(n + 1);
    for(int i = 1; i <= n; i++) {
        int a;
        cin >> a;
        village[i - 1] = {a, i};
        parent1[i] = parent[i] = i;
    }
    sort(village.begin(), village.end());
    for(int i = 1; i <= m; i++) {
        int a, b;
        cin >> a >> b;
        G[a].push_back(b);
        G[b].push_back(a);
    }
    vector<bool> visited(n + 1);
    for(auto [vs, v] : village) {
        vsize[v] = vs;
        visited[v] = true;
        for(int u : G[v]) {
            if(!visited[u]) continue;
            while(u != parent[u])
                u = parent[u] = parent[parent[u]];
            if(u == v)
                continue;
            vsize[v] += vsize[u];
            parent[u] = v;
            if(vsize[u] >= vs)
                parent1[u] = v;
        }
    }
    int v = village.back().second;
    for(int i = 1; i <= n; i++) {
        int u = i;
        while(u != parent1[u])
            u = parent1[u] = parent1[parent1[u]];
        if(u == v)
            cout << '1';
        else
            cout << '0';
    }
}

Compilation message

island.cpp: In function 'int main()':
island.cpp:30:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   30 |     for(auto [vs, v] : village) {
      |              ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 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 73 ms 20564 KB Output is correct
4 Correct 68 ms 19284 KB Output is correct
5 Correct 71 ms 19872 KB Output is correct
6 Correct 72 ms 20696 KB Output is correct
7 Correct 71 ms 20564 KB Output is correct
8 Correct 89 ms 20560 KB Output is correct
9 Correct 71 ms 20560 KB Output is correct
10 Correct 59 ms 20676 KB Output is correct
11 Correct 75 ms 20328 KB Output is correct
12 Correct 79 ms 19284 KB Output is correct
13 Correct 70 ms 19076 KB Output is correct
14 Correct 66 ms 19220 KB Output is correct
15 Correct 71 ms 20560 KB Output is correct
16 Correct 52 ms 19792 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 88 ms 20412 KB Output is correct
3 Correct 87 ms 20776 KB Output is correct
4 Correct 87 ms 20700 KB Output is correct
5 Correct 65 ms 19028 KB Output is correct
6 Correct 81 ms 20560 KB Output is correct
7 Correct 80 ms 20560 KB Output is correct
8 Correct 84 ms 20708 KB Output is correct
9 Correct 49 ms 19796 KB Output is correct
10 Correct 71 ms 20048 KB Output is correct
11 Correct 78 ms 19284 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 94 ms 20544 KB Output is correct
3 Correct 90 ms 20688 KB Output is correct
4 Correct 95 ms 20968 KB Output is correct
5 Correct 98 ms 20556 KB Output is correct
6 Correct 79 ms 19796 KB Output is correct
7 Correct 65 ms 21448 KB Output is correct
8 Correct 57 ms 19540 KB Output is correct
9 Correct 62 ms 11860 KB Output is correct
10 Correct 76 ms 19284 KB Output is correct
11 Correct 85 ms 19280 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 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 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 73 ms 20564 KB Output is correct
18 Correct 68 ms 19284 KB Output is correct
19 Correct 71 ms 19872 KB Output is correct
20 Correct 72 ms 20696 KB Output is correct
21 Correct 71 ms 20564 KB Output is correct
22 Correct 89 ms 20560 KB Output is correct
23 Correct 71 ms 20560 KB Output is correct
24 Correct 59 ms 20676 KB Output is correct
25 Correct 75 ms 20328 KB Output is correct
26 Correct 79 ms 19284 KB Output is correct
27 Correct 70 ms 19076 KB Output is correct
28 Correct 66 ms 19220 KB Output is correct
29 Correct 71 ms 20560 KB Output is correct
30 Correct 52 ms 19792 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 88 ms 20412 KB Output is correct
33 Correct 87 ms 20776 KB Output is correct
34 Correct 87 ms 20700 KB Output is correct
35 Correct 65 ms 19028 KB Output is correct
36 Correct 81 ms 20560 KB Output is correct
37 Correct 80 ms 20560 KB Output is correct
38 Correct 84 ms 20708 KB Output is correct
39 Correct 49 ms 19796 KB Output is correct
40 Correct 71 ms 20048 KB Output is correct
41 Correct 78 ms 19284 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 94 ms 20544 KB Output is correct
44 Correct 90 ms 20688 KB Output is correct
45 Correct 95 ms 20968 KB Output is correct
46 Correct 98 ms 20556 KB Output is correct
47 Correct 79 ms 19796 KB Output is correct
48 Correct 65 ms 21448 KB Output is correct
49 Correct 57 ms 19540 KB Output is correct
50 Correct 62 ms 11860 KB Output is correct
51 Correct 76 ms 19284 KB Output is correct
52 Correct 85 ms 19280 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 1 ms 604 KB Output is correct
57 Correct 1 ms 468 KB Output is correct
58 Correct 1 ms 604 KB Output is correct
59 Correct 1 ms 604 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 1 ms 608 KB Output is correct
62 Correct 1 ms 600 KB Output is correct
63 Correct 1 ms 604 KB Output is correct
64 Correct 1 ms 604 KB Output is correct
65 Correct 1 ms 604 KB Output is correct
66 Correct 1 ms 604 KB Output is correct
67 Correct 74 ms 20776 KB Output is correct
68 Correct 72 ms 19280 KB Output is correct
69 Correct 72 ms 20048 KB Output is correct
70 Correct 80 ms 20572 KB Output is correct
71 Correct 81 ms 20560 KB Output is correct
72 Correct 87 ms 20568 KB Output is correct
73 Correct 76 ms 20560 KB Output is correct
74 Correct 67 ms 20680 KB Output is correct
75 Correct 72 ms 20524 KB Output is correct
76 Correct 87 ms 19280 KB Output is correct
77 Correct 70 ms 19024 KB Output is correct
78 Correct 71 ms 19280 KB Output is correct
79 Correct 76 ms 20592 KB Output is correct
80 Correct 55 ms 19796 KB Output is correct
81 Correct 97 ms 20564 KB Output is correct
82 Correct 90 ms 20560 KB Output is correct
83 Correct 91 ms 20560 KB Output is correct
84 Correct 67 ms 19020 KB Output is correct
85 Correct 92 ms 20600 KB Output is correct
86 Correct 81 ms 20712 KB Output is correct
87 Correct 79 ms 20560 KB Output is correct
88 Correct 71 ms 20052 KB Output is correct
89 Correct 74 ms 19280 KB Output is correct
90 Correct 97 ms 20560 KB Output is correct
91 Correct 89 ms 20544 KB Output is correct
92 Correct 103 ms 20640 KB Output is correct
93 Correct 92 ms 20604 KB Output is correct
94 Correct 77 ms 19796 KB Output is correct
95 Correct 66 ms 21452 KB Output is correct
96 Correct 59 ms 19536 KB Output is correct
97 Correct 67 ms 11856 KB Output is correct
98 Correct 76 ms 19284 KB Output is correct
99 Correct 78 ms 19284 KB Output is correct
100 Correct 29 ms 4688 KB Output is correct
101 Correct 102 ms 20816 KB Output is correct
102 Correct 113 ms 16724 KB Output is correct
103 Correct 94 ms 17700 KB Output is correct
104 Correct 95 ms 20380 KB Output is correct