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Submission #1098931

# Submission time Handle Problem Language Result Execution time Memory
1098931 2024-10-10T10:40:10 Z origabai Stranded Far From Home (BOI22_island) C++14
100 / 100
 142 ms 48308 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;

vector<int> par;
vector<int> ans;

int cmp(int v){
    if (par[v]==v) return v;
    return par[v] = cmp(par[v]);
}

void dfs1(vector<int> tree[], ll sum[], ll s[], int v){
    sum[v] = s[v];
    for (int u : tree[v]){
        dfs1(tree,sum,s,u);
        sum[v] += sum[u];
    }
}

void dfs2(vector<int> tree[], ll sum[], ll s[], int v){
    ans[v]=1;
    for (int u : tree[v]){
        if (sum[u] >= s[v]){
            dfs2(tree,sum,s,u);
        }
    }
}

int main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);
    int n,m;
    cin >> n >> m;
    ll s[n];
    for (int i=0;i<n;i++){
        cin >> s[i];
    }
    vector<int> nei[n],tree[n];
    for (int i=0;i<m;i++){
        int a,b;
        cin>>a>>b;
        a--;b--;
        nei[a].push_back(b);
        nei[b].push_back(a);
    }
    par.resize(n);
    iota(par.begin(),par.end(),0);
    vector<int> ord(n);
    iota(ord.begin(),ord.end(),0);
    sort(ord.begin(),ord.end(),[&](int l, int r){return s[l] < s[r];});
    bool vis[n]={0};
    for (int v : ord){
        vis[v]=1;
        for (int u : nei[v]){
            if (vis[u]){
                u = cmp(u);
                if (u==v)continue;
                tree[v].push_back(u);
                par[u] = v;
            }
        }
    }
    ans.resize(n);
    ll sum[n];
    dfs1(tree,sum,s,ord.back());
    dfs2(tree,sum,s,ord.back());
    for (int i=0;i<n;i++){
        cout<<ans[i];
    }
    cout<<"\n";
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 604 KB Output is correct
9 Correct 1 ms 716 KB Output is correct
10 Correct 1 ms 768 KB Output is correct
11 Correct 2 ms 600 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 644 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 0 ms 344 KB Output is correct
2 Correct 0 ms 372 KB Output is correct
3 Correct 93 ms 36832 KB Output is correct
4 Correct 92 ms 30544 KB Output is correct
5 Correct 104 ms 29268 KB Output is correct
6 Correct 111 ms 30308 KB Output is correct
7 Correct 113 ms 30292 KB Output is correct
8 Correct 127 ms 32628 KB Output is correct
9 Correct 90 ms 29260 KB Output is correct
10 Correct 70 ms 27204 KB Output is correct
11 Correct 80 ms 26952 KB Output is correct
12 Correct 99 ms 29060 KB Output is correct
13 Correct 89 ms 30804 KB Output is correct
14 Correct 97 ms 30800 KB Output is correct
15 Correct 105 ms 48308 KB Output is correct
16 Correct 88 ms 47164 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 118 ms 30288 KB Output is correct
3 Correct 130 ms 30544 KB Output is correct
4 Correct 96 ms 32176 KB Output is correct
5 Correct 83 ms 30796 KB Output is correct
6 Correct 130 ms 30536 KB Output is correct
7 Correct 123 ms 48148 KB Output is correct
8 Correct 121 ms 48208 KB Output is correct
9 Correct 81 ms 46932 KB Output is correct
10 Correct 81 ms 28872 KB Output is correct
11 Correct 91 ms 29008 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 138 ms 31228 KB Output is correct
3 Correct 140 ms 30548 KB Output is correct
4 Correct 129 ms 30440 KB Output is correct
5 Correct 139 ms 30544 KB Output is correct
6 Correct 122 ms 31032 KB Output is correct
7 Correct 85 ms 31048 KB Output is correct
8 Correct 92 ms 39052 KB Output is correct
9 Correct 69 ms 17716 KB Output is correct
10 Correct 97 ms 28832 KB Output is correct
11 Correct 92 ms 29148 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 604 KB Output is correct
9 Correct 1 ms 716 KB Output is correct
10 Correct 1 ms 768 KB Output is correct
11 Correct 2 ms 600 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 644 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 372 KB Output is correct
17 Correct 93 ms 36832 KB Output is correct
18 Correct 92 ms 30544 KB Output is correct
19 Correct 104 ms 29268 KB Output is correct
20 Correct 111 ms 30308 KB Output is correct
21 Correct 113 ms 30292 KB Output is correct
22 Correct 127 ms 32628 KB Output is correct
23 Correct 90 ms 29260 KB Output is correct
24 Correct 70 ms 27204 KB Output is correct
25 Correct 80 ms 26952 KB Output is correct
26 Correct 99 ms 29060 KB Output is correct
27 Correct 89 ms 30804 KB Output is correct
28 Correct 97 ms 30800 KB Output is correct
29 Correct 105 ms 48308 KB Output is correct
30 Correct 88 ms 47164 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 118 ms 30288 KB Output is correct
33 Correct 130 ms 30544 KB Output is correct
34 Correct 96 ms 32176 KB Output is correct
35 Correct 83 ms 30796 KB Output is correct
36 Correct 130 ms 30536 KB Output is correct
37 Correct 123 ms 48148 KB Output is correct
38 Correct 121 ms 48208 KB Output is correct
39 Correct 81 ms 46932 KB Output is correct
40 Correct 81 ms 28872 KB Output is correct
41 Correct 91 ms 29008 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 138 ms 31228 KB Output is correct
44 Correct 140 ms 30548 KB Output is correct
45 Correct 129 ms 30440 KB Output is correct
46 Correct 139 ms 30544 KB Output is correct
47 Correct 122 ms 31032 KB Output is correct
48 Correct 85 ms 31048 KB Output is correct
49 Correct 92 ms 39052 KB Output is correct
50 Correct 69 ms 17716 KB Output is correct
51 Correct 97 ms 28832 KB Output is correct
52 Correct 92 ms 29148 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 724 KB Output is correct
58 Correct 1 ms 572 KB Output is correct
59 Correct 1 ms 604 KB Output is correct
60 Correct 1 ms 604 KB Output is correct
61 Correct 1 ms 860 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 604 KB Output is correct
64 Correct 1 ms 728 KB Output is correct
65 Correct 1 ms 604 KB Output is correct
66 Correct 2 ms 604 KB Output is correct
67 Correct 110 ms 36936 KB Output is correct
68 Correct 86 ms 30548 KB Output is correct
69 Correct 97 ms 29388 KB Output is correct
70 Correct 106 ms 30288 KB Output is correct
71 Correct 114 ms 30284 KB Output is correct
72 Correct 114 ms 32592 KB Output is correct
73 Correct 91 ms 29396 KB Output is correct
74 Correct 69 ms 27008 KB Output is correct
75 Correct 76 ms 26900 KB Output is correct
76 Correct 111 ms 28852 KB Output is correct
77 Correct 84 ms 30804 KB Output is correct
78 Correct 84 ms 30800 KB Output is correct
79 Correct 106 ms 48208 KB Output is correct
80 Correct 88 ms 46932 KB Output is correct
81 Correct 121 ms 30288 KB Output is correct
82 Correct 127 ms 30508 KB Output is correct
83 Correct 91 ms 32340 KB Output is correct
84 Correct 93 ms 30804 KB Output is correct
85 Correct 117 ms 30548 KB Output is correct
86 Correct 120 ms 48212 KB Output is correct
87 Correct 123 ms 48212 KB Output is correct
88 Correct 94 ms 28980 KB Output is correct
89 Correct 89 ms 29012 KB Output is correct
90 Correct 124 ms 31056 KB Output is correct
91 Correct 130 ms 30544 KB Output is correct
92 Correct 133 ms 30352 KB Output is correct
93 Correct 125 ms 30548 KB Output is correct
94 Correct 116 ms 31060 KB Output is correct
95 Correct 87 ms 31152 KB Output is correct
96 Correct 77 ms 39052 KB Output is correct
97 Correct 78 ms 17744 KB Output is correct
98 Correct 105 ms 28832 KB Output is correct
99 Correct 94 ms 29008 KB Output is correct
100 Correct 27 ms 5212 KB Output is correct
101 Correct 127 ms 30628 KB Output is correct
102 Correct 93 ms 29008 KB Output is correct
103 Correct 142 ms 30032 KB Output is correct
104 Correct 133 ms 31572 KB Output is correct