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Submission #823752

# Submission time Handle Problem Language Result Execution time Memory
823752 2023-08-13T04:44:07 Z PoonYaPat Stranded Far From Home (BOI22_island) C++14
100 / 100
 210 ms 34524 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;

int n,m,p[200005],r[200005];
ll c[200005],cnt[200005];
vector<int> ans[200005],adj[200005];
vector<pii> v;

int find(int x) {
    while (x!=p[x]) x=p[x];
    return x;
}

int unite(int x, int y) {
    if (r[x]<r[y]) swap(x,y);
    p[y]=x;
    cnt[x]+=cnt[y];
    if (r[x]==r[y]) ++r[x];
    return x;
}

void add(int x) {
    for (auto s : adj[x]) {
        if (c[x]<c[s]) continue;
        int S=find(s), X=find(x);
        if (S!=X) {
            if (cnt[S]>=c[x]) {
                if (ans[X].size()<ans[S].size()) swap(ans[X],ans[S]);
                for (auto k : ans[S]) ans[X].push_back(k);
            }
            int h=unite(X,S);
            swap(ans[X],ans[h]);
        }
    }
}

bool Ans[200005];

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>n>>m;
    for (int i=1; i<=n; ++i) cin>>c[i], p[i]=i, cnt[i]=c[i], v.push_back(pii(c[i],i)), ans[i].push_back(i);
    for (int i=0; i<m; ++i) {
        int a,b; cin>>a>>b;
        adj[a].push_back(b);
        adj[b].push_back(a);
    }
    sort(v.begin(),v.end());
    for (auto s : v) add(s.second);
    for (auto s : ans[find(v.back().second)]) Ans[s]=true;
    for (int i=1; i<=n; ++i) {
        if (Ans[i]) cout<<1;
        else cout<<0;
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 4 ms 9684 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 5 ms 9940 KB Output is correct
6 Correct 6 ms 9864 KB Output is correct
7 Correct 5 ms 9908 KB Output is correct
8 Correct 5 ms 9764 KB Output is correct
9 Correct 5 ms 9812 KB Output is correct
10 Correct 5 ms 9940 KB Output is correct
11 Correct 5 ms 9940 KB Output is correct
12 Correct 6 ms 9940 KB Output is correct
13 Correct 5 ms 9940 KB Output is correct
14 Correct 5 ms 9940 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 140 ms 30372 KB Output is correct
4 Correct 107 ms 29664 KB Output is correct
5 Correct 124 ms 31428 KB Output is correct
6 Correct 129 ms 32188 KB Output is correct
7 Correct 131 ms 32268 KB Output is correct
8 Correct 131 ms 29964 KB Output is correct
9 Correct 130 ms 32696 KB Output is correct
10 Correct 91 ms 28644 KB Output is correct
11 Correct 118 ms 30608 KB Output is correct
12 Correct 156 ms 29764 KB Output is correct
13 Correct 100 ms 29652 KB Output is correct
14 Correct 117 ms 29660 KB Output is correct
15 Correct 111 ms 29892 KB Output is correct
16 Correct 79 ms 29732 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 159 ms 32764 KB Output is correct
3 Correct 159 ms 33000 KB Output is correct
4 Correct 128 ms 29860 KB Output is correct
5 Correct 106 ms 29396 KB Output is correct
6 Correct 192 ms 32796 KB Output is correct
7 Correct 131 ms 29872 KB Output is correct
8 Correct 138 ms 29904 KB Output is correct
9 Correct 88 ms 29700 KB Output is correct
10 Correct 111 ms 29672 KB Output is correct
11 Correct 144 ms 30108 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 175 ms 30580 KB Output is correct
3 Correct 183 ms 31032 KB Output is correct
4 Correct 162 ms 32112 KB Output is correct
5 Correct 210 ms 33352 KB Output is correct
6 Correct 166 ms 30808 KB Output is correct
7 Correct 109 ms 30648 KB Output is correct
8 Correct 87 ms 29228 KB Output is correct
9 Correct 91 ms 21000 KB Output is correct
10 Correct 178 ms 34524 KB Output is correct
11 Correct 135 ms 30152 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 4 ms 9684 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 5 ms 9940 KB Output is correct
6 Correct 6 ms 9864 KB Output is correct
7 Correct 5 ms 9908 KB Output is correct
8 Correct 5 ms 9764 KB Output is correct
9 Correct 5 ms 9812 KB Output is correct
10 Correct 5 ms 9940 KB Output is correct
11 Correct 5 ms 9940 KB Output is correct
12 Correct 6 ms 9940 KB Output is correct
13 Correct 5 ms 9940 KB Output is correct
14 Correct 5 ms 9940 KB Output is correct
15 Correct 6 ms 9684 KB Output is correct
16 Correct 4 ms 9684 KB Output is correct
17 Correct 140 ms 30372 KB Output is correct
18 Correct 107 ms 29664 KB Output is correct
19 Correct 124 ms 31428 KB Output is correct
20 Correct 129 ms 32188 KB Output is correct
21 Correct 131 ms 32268 KB Output is correct
22 Correct 131 ms 29964 KB Output is correct
23 Correct 130 ms 32696 KB Output is correct
24 Correct 91 ms 28644 KB Output is correct
25 Correct 118 ms 30608 KB Output is correct
26 Correct 156 ms 29764 KB Output is correct
27 Correct 100 ms 29652 KB Output is correct
28 Correct 117 ms 29660 KB Output is correct
29 Correct 111 ms 29892 KB Output is correct
30 Correct 79 ms 29732 KB Output is correct
31 Correct 6 ms 9684 KB Output is correct
32 Correct 159 ms 32764 KB Output is correct
33 Correct 159 ms 33000 KB Output is correct
34 Correct 128 ms 29860 KB Output is correct
35 Correct 106 ms 29396 KB Output is correct
36 Correct 192 ms 32796 KB Output is correct
37 Correct 131 ms 29872 KB Output is correct
38 Correct 138 ms 29904 KB Output is correct
39 Correct 88 ms 29700 KB Output is correct
40 Correct 111 ms 29672 KB Output is correct
41 Correct 144 ms 30108 KB Output is correct
42 Correct 4 ms 9684 KB Output is correct
43 Correct 175 ms 30580 KB Output is correct
44 Correct 183 ms 31032 KB Output is correct
45 Correct 162 ms 32112 KB Output is correct
46 Correct 210 ms 33352 KB Output is correct
47 Correct 166 ms 30808 KB Output is correct
48 Correct 109 ms 30648 KB Output is correct
49 Correct 87 ms 29228 KB Output is correct
50 Correct 91 ms 21000 KB Output is correct
51 Correct 178 ms 34524 KB Output is correct
52 Correct 135 ms 30152 KB Output is correct
53 Correct 5 ms 9684 KB Output is correct
54 Correct 4 ms 9684 KB Output is correct
55 Correct 5 ms 9684 KB Output is correct
56 Correct 5 ms 9812 KB Output is correct
57 Correct 5 ms 9940 KB Output is correct
58 Correct 5 ms 9812 KB Output is correct
59 Correct 5 ms 9812 KB Output is correct
60 Correct 5 ms 9812 KB Output is correct
61 Correct 5 ms 9880 KB Output is correct
62 Correct 5 ms 9848 KB Output is correct
63 Correct 5 ms 9940 KB Output is correct
64 Correct 5 ms 9940 KB Output is correct
65 Correct 5 ms 9812 KB Output is correct
66 Correct 5 ms 9940 KB Output is correct
67 Correct 108 ms 30368 KB Output is correct
68 Correct 104 ms 29576 KB Output is correct
69 Correct 168 ms 31532 KB Output is correct
70 Correct 159 ms 32204 KB Output is correct
71 Correct 130 ms 32216 KB Output is correct
72 Correct 131 ms 29920 KB Output is correct
73 Correct 114 ms 32700 KB Output is correct
74 Correct 87 ms 28664 KB Output is correct
75 Correct 125 ms 30632 KB Output is correct
76 Correct 133 ms 29808 KB Output is correct
77 Correct 106 ms 29604 KB Output is correct
78 Correct 141 ms 29592 KB Output is correct
79 Correct 129 ms 29976 KB Output is correct
80 Correct 80 ms 29628 KB Output is correct
81 Correct 152 ms 32856 KB Output is correct
82 Correct 168 ms 32988 KB Output is correct
83 Correct 147 ms 29908 KB Output is correct
84 Correct 96 ms 29480 KB Output is correct
85 Correct 171 ms 32852 KB Output is correct
86 Correct 132 ms 29880 KB Output is correct
87 Correct 138 ms 29884 KB Output is correct
88 Correct 123 ms 29736 KB Output is correct
89 Correct 146 ms 30172 KB Output is correct
90 Correct 163 ms 30632 KB Output is correct
91 Correct 157 ms 30968 KB Output is correct
92 Correct 179 ms 32088 KB Output is correct
93 Correct 183 ms 33260 KB Output is correct
94 Correct 158 ms 30776 KB Output is correct
95 Correct 108 ms 30672 KB Output is correct
96 Correct 95 ms 29276 KB Output is correct
97 Correct 83 ms 21048 KB Output is correct
98 Correct 157 ms 34408 KB Output is correct
99 Correct 133 ms 30160 KB Output is correct
100 Correct 35 ms 12236 KB Output is correct
101 Correct 205 ms 31356 KB Output is correct
102 Correct 136 ms 26892 KB Output is correct
103 Correct 150 ms 26920 KB Output is correct
104 Correct 168 ms 30152 KB Output is correct