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Submission #811116

# Submission time Handle Problem Language Result Execution time Memory
811116 2023-08-07T00:09:52 Z owoovo Stranded Far From Home (BOI22_island) C++14
100 / 100
 181 ms 44108 KB 
#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll n,m,tag[200010],subsum[200010],dsu[200010],ans[200010];
vector<ll> e[200010],te[200010];
pair<ll,ll> val[200010];
int f(int a){
    if(dsu[a]!=a){
        dsu[a]=f(dsu[a]);
        return dsu[a];
    }else{
        return a;
    }
}
void dfs(int now,int x){
    tag[now]==1?ans[now]=0:ans[now]=x;
    for(auto ne:te[now]){
        dfs(ne,ans[now]);
    }
}
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin>>n>>m;
    for(int i=1;i<=n;i++){
        cin>>val[i].first;
        val[i].second=i;
        dsu[i]=i;
        subsum[i]=val[i].first;
    }
    for(int i=0;i<m;i++){
        int a,b;
        cin>>a>>b;  
        if(a>b)swap(a,b);
        if(val[a].first>val[b].first)e[a].push_back(b);
        else e[b].push_back(a);
    }
    sort(&val[1],&val[n+1]);
    for(int i=1;i<=n;i++){
        ll x=val[i].second;
        ll y=val[i].first;
        for(auto ne:e[x]){
            ne=f(ne);
            if(ne==x)continue;
            te[x].push_back(ne);
            if(subsum[ne]<y)tag[ne]=1;
            dsu[ne]=x;
            subsum[x]+=subsum[ne];
        }
    }
    dfs(val[n].second,1);
    for(int i=1;i<=n;i++)cout<<ans[i];
    cout<<"\n";
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9624 KB Output is correct
2 Correct 5 ms 9728 KB Output is correct
3 Correct 4 ms 9684 KB Output is correct
4 Correct 5 ms 9940 KB Output is correct
5 Correct 5 ms 9940 KB Output is correct
6 Correct 5 ms 9812 KB Output is correct
7 Correct 5 ms 9880 KB Output is correct
8 Correct 5 ms 9812 KB Output is correct
9 Correct 4 ms 9996 KB Output is correct
10 Correct 5 ms 9940 KB Output is correct
11 Correct 5 ms 9940 KB Output is correct
12 Correct 5 ms 9876 KB Output is correct
13 Correct 5 ms 10068 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 4 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 110 ms 33144 KB Output is correct
4 Correct 109 ms 39904 KB Output is correct
5 Correct 108 ms 31124 KB Output is correct
6 Correct 123 ms 31720 KB Output is correct
7 Correct 112 ms 31820 KB Output is correct
8 Correct 116 ms 43980 KB Output is correct
9 Correct 84 ms 29124 KB Output is correct
10 Correct 62 ms 26112 KB Output is correct
11 Correct 106 ms 42956 KB Output is correct
12 Correct 120 ms 34344 KB Output is correct
13 Correct 90 ms 42440 KB Output is correct
14 Correct 92 ms 41676 KB Output is correct
15 Correct 98 ms 44016 KB Output is correct
16 Correct 71 ms 43028 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 157 ms 28784 KB Output is correct
3 Correct 162 ms 28904 KB Output is correct
4 Correct 117 ms 40852 KB Output is correct
5 Correct 90 ms 37808 KB Output is correct
6 Correct 143 ms 28940 KB Output is correct
7 Correct 135 ms 40808 KB Output is correct
8 Correct 112 ms 40908 KB Output is correct
9 Correct 71 ms 40508 KB Output is correct
10 Correct 95 ms 31404 KB Output is correct
11 Correct 112 ms 30672 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 166 ms 29532 KB Output is correct
3 Correct 150 ms 32156 KB Output is correct
4 Correct 181 ms 32180 KB Output is correct
5 Correct 145 ms 30696 KB Output is correct
6 Correct 112 ms 30996 KB Output is correct
7 Correct 90 ms 35604 KB Output is correct
8 Correct 74 ms 42932 KB Output is correct
9 Correct 80 ms 23524 KB Output is correct
10 Correct 116 ms 29088 KB Output is correct
11 Correct 108 ms 32388 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9624 KB Output is correct
2 Correct 5 ms 9728 KB Output is correct
3 Correct 4 ms 9684 KB Output is correct
4 Correct 5 ms 9940 KB Output is correct
5 Correct 5 ms 9940 KB Output is correct
6 Correct 5 ms 9812 KB Output is correct
7 Correct 5 ms 9880 KB Output is correct
8 Correct 5 ms 9812 KB Output is correct
9 Correct 4 ms 9996 KB Output is correct
10 Correct 5 ms 9940 KB Output is correct
11 Correct 5 ms 9940 KB Output is correct
12 Correct 5 ms 9876 KB Output is correct
13 Correct 5 ms 10068 KB Output is correct
14 Correct 5 ms 9940 KB Output is correct
15 Correct 4 ms 9684 KB Output is correct
16 Correct 5 ms 9684 KB Output is correct
17 Correct 110 ms 33144 KB Output is correct
18 Correct 109 ms 39904 KB Output is correct
19 Correct 108 ms 31124 KB Output is correct
20 Correct 123 ms 31720 KB Output is correct
21 Correct 112 ms 31820 KB Output is correct
22 Correct 116 ms 43980 KB Output is correct
23 Correct 84 ms 29124 KB Output is correct
24 Correct 62 ms 26112 KB Output is correct
25 Correct 106 ms 42956 KB Output is correct
26 Correct 120 ms 34344 KB Output is correct
27 Correct 90 ms 42440 KB Output is correct
28 Correct 92 ms 41676 KB Output is correct
29 Correct 98 ms 44016 KB Output is correct
30 Correct 71 ms 43028 KB Output is correct
31 Correct 4 ms 9684 KB Output is correct
32 Correct 157 ms 28784 KB Output is correct
33 Correct 162 ms 28904 KB Output is correct
34 Correct 117 ms 40852 KB Output is correct
35 Correct 90 ms 37808 KB Output is correct
36 Correct 143 ms 28940 KB Output is correct
37 Correct 135 ms 40808 KB Output is correct
38 Correct 112 ms 40908 KB Output is correct
39 Correct 71 ms 40508 KB Output is correct
40 Correct 95 ms 31404 KB Output is correct
41 Correct 112 ms 30672 KB Output is correct
42 Correct 4 ms 9684 KB Output is correct
43 Correct 166 ms 29532 KB Output is correct
44 Correct 150 ms 32156 KB Output is correct
45 Correct 181 ms 32180 KB Output is correct
46 Correct 145 ms 30696 KB Output is correct
47 Correct 112 ms 30996 KB Output is correct
48 Correct 90 ms 35604 KB Output is correct
49 Correct 74 ms 42932 KB Output is correct
50 Correct 80 ms 23524 KB Output is correct
51 Correct 116 ms 29088 KB Output is correct
52 Correct 108 ms 32388 KB Output is correct
53 Correct 4 ms 9684 KB Output is correct
54 Correct 4 ms 9684 KB Output is correct
55 Correct 4 ms 9684 KB Output is correct
56 Correct 5 ms 9940 KB Output is correct
57 Correct 6 ms 9872 KB Output is correct
58 Correct 5 ms 9848 KB Output is correct
59 Correct 5 ms 9940 KB Output is correct
60 Correct 5 ms 9872 KB Output is correct
61 Correct 5 ms 10068 KB Output is correct
62 Correct 5 ms 9956 KB Output is correct
63 Correct 5 ms 9940 KB Output is correct
64 Correct 5 ms 9940 KB Output is correct
65 Correct 6 ms 10004 KB Output is correct
66 Correct 5 ms 9844 KB Output is correct
67 Correct 97 ms 36352 KB Output is correct
68 Correct 96 ms 41684 KB Output is correct
69 Correct 105 ms 31124 KB Output is correct
70 Correct 108 ms 31712 KB Output is correct
71 Correct 128 ms 31808 KB Output is correct
72 Correct 131 ms 44032 KB Output is correct
73 Correct 98 ms 29168 KB Output is correct
74 Correct 61 ms 26052 KB Output is correct
75 Correct 106 ms 43016 KB Output is correct
76 Correct 120 ms 34328 KB Output is correct
77 Correct 90 ms 42508 KB Output is correct
78 Correct 94 ms 41688 KB Output is correct
79 Correct 99 ms 43964 KB Output is correct
80 Correct 74 ms 42976 KB Output is correct
81 Correct 134 ms 31968 KB Output is correct
82 Correct 135 ms 32040 KB Output is correct
83 Correct 111 ms 44004 KB Output is correct
84 Correct 88 ms 39560 KB Output is correct
85 Correct 134 ms 32084 KB Output is correct
86 Correct 112 ms 44060 KB Output is correct
87 Correct 112 ms 44108 KB Output is correct
88 Correct 91 ms 33980 KB Output is correct
89 Correct 127 ms 32560 KB Output is correct
90 Correct 144 ms 32564 KB Output is correct
91 Correct 145 ms 32144 KB Output is correct
92 Correct 157 ms 32180 KB Output is correct
93 Correct 124 ms 30668 KB Output is correct
94 Correct 107 ms 30972 KB Output is correct
95 Correct 81 ms 35612 KB Output is correct
96 Correct 73 ms 42876 KB Output is correct
97 Correct 83 ms 23560 KB Output is correct
98 Correct 105 ms 29108 KB Output is correct
99 Correct 108 ms 32452 KB Output is correct
100 Correct 36 ms 14680 KB Output is correct
101 Correct 149 ms 32272 KB Output is correct
102 Correct 113 ms 29792 KB Output is correct
103 Correct 129 ms 31756 KB Output is correct
104 Correct 145 ms 32860 KB Output is correct