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Submission #573286

# Submission time Handle Problem Language Result Execution time Memory
573286 2022-06-06T11:12:10 Z AmirElarbi Stranded Far From Home (BOI22_island) C++14
100 / 100
 218 ms 40240 KB 
#include <bits/stdc++.h>
#define vi vector<int>
#define ve vector
#define ll long long
#define vf vector<float>
#define vll vector<pair<ll,ll>>
#define ii pair<int,int>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 1e9+7
#define eps 1e-7
#define eps1 1e-2
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 2e5+5
using namespace std;
const int MOD = 1e4+7;
const int nax = 4e5+5;
typedef complex<int> Point;
#define X real()
#define Y imag()
vii s;
vi adj[nax], nds[nax];
ll ans[nax];
ll p[nax], sz[nax];
int find_set(int v) {
    if (v == p[v])
        return v;
    return p[v] = find_set(p[v]);
}

void union_sets(int a, int b) {
    a = find_set(a);
    b = find_set(b);
    if (a != b){
        if(nds[b].size() > nds[a].size()) swap(nds[a],nds[b]);
        for(auto x : nds[b]) nds[a].pb(x);
        p[b] = a;
        sz[a] += sz[b];
    }
}
int main(){
    optimise;
    int n,m;
    cin >>n >> m;
    for (int i = 0; i < n; ++i)
    {
        int val;
        cin >> val;
        sz[i] = val;
        p[i] = i;
        nds[i].pb(i);
        s.pb({val,i});
    }
    for (int i = 0; i < m; ++i)
    {
        int a,b;
        cin >> a >> b;
        a--,b--;
        if(mp(sz[a],a) < mp(sz[b],b)) swap(a,b);
        adj[a].pb(b);
    }
    sort(s.begin(), s.end());
    for (int i = 0; i < n; ++i)
    {
        int u = find_set(s[i].se);
        for(auto x : adj[u]){
            x = find_set(x);
            if(sz[u] > sz[x]) nds[x].clear();
        }
        for(auto x : adj[u]) union_sets(x,u);  
    }
    for(auto x: nds[find_set(0)]) ans[x] = 1;
    for (int i = 0; i < n; ++i)
    {
        cout << ans[i];
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 19116 KB Output is correct
2 Correct 12 ms 19072 KB Output is correct
3 Correct 13 ms 19132 KB Output is correct
4 Correct 12 ms 19288 KB Output is correct
5 Correct 11 ms 19284 KB Output is correct
6 Correct 11 ms 19156 KB Output is correct
7 Correct 11 ms 19156 KB Output is correct
8 Correct 11 ms 19192 KB Output is correct
9 Correct 11 ms 19264 KB Output is correct
10 Correct 12 ms 19284 KB Output is correct
11 Correct 10 ms 19320 KB Output is correct
12 Correct 11 ms 19260 KB Output is correct
13 Correct 11 ms 19208 KB Output is correct
14 Correct 11 ms 19284 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 19028 KB Output is correct
2 Correct 10 ms 19028 KB Output is correct
3 Correct 139 ms 37640 KB Output is correct
4 Correct 129 ms 38356 KB Output is correct
5 Correct 169 ms 38208 KB Output is correct
6 Correct 152 ms 38908 KB Output is correct
7 Correct 163 ms 38892 KB Output is correct
8 Correct 156 ms 39892 KB Output is correct
9 Correct 137 ms 38592 KB Output is correct
10 Correct 105 ms 32008 KB Output is correct
11 Correct 147 ms 39908 KB Output is correct
12 Correct 142 ms 37176 KB Output is correct
13 Correct 132 ms 38292 KB Output is correct
14 Correct 122 ms 38336 KB Output is correct
15 Correct 135 ms 39932 KB Output is correct
16 Correct 103 ms 39608 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 19016 KB Output is correct
2 Correct 189 ms 40140 KB Output is correct
3 Correct 185 ms 40144 KB Output is correct
4 Correct 161 ms 39836 KB Output is correct
5 Correct 130 ms 38096 KB Output is correct
6 Correct 182 ms 39936 KB Output is correct
7 Correct 179 ms 39864 KB Output is correct
8 Correct 158 ms 39884 KB Output is correct
9 Correct 95 ms 39708 KB Output is correct
10 Correct 129 ms 36444 KB Output is correct
11 Correct 183 ms 36272 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 19028 KB Output is correct
2 Correct 209 ms 37540 KB Output is correct
3 Correct 196 ms 37960 KB Output is correct
4 Correct 193 ms 39000 KB Output is correct
5 Correct 183 ms 40240 KB Output is correct
6 Correct 163 ms 37816 KB Output is correct
7 Correct 122 ms 38536 KB Output is correct
8 Correct 93 ms 38520 KB Output is correct
9 Correct 122 ms 28932 KB Output is correct
10 Correct 168 ms 39580 KB Output is correct
11 Correct 145 ms 36248 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 19116 KB Output is correct
2 Correct 12 ms 19072 KB Output is correct
3 Correct 13 ms 19132 KB Output is correct
4 Correct 12 ms 19288 KB Output is correct
5 Correct 11 ms 19284 KB Output is correct
6 Correct 11 ms 19156 KB Output is correct
7 Correct 11 ms 19156 KB Output is correct
8 Correct 11 ms 19192 KB Output is correct
9 Correct 11 ms 19264 KB Output is correct
10 Correct 12 ms 19284 KB Output is correct
11 Correct 10 ms 19320 KB Output is correct
12 Correct 11 ms 19260 KB Output is correct
13 Correct 11 ms 19208 KB Output is correct
14 Correct 11 ms 19284 KB Output is correct
15 Correct 10 ms 19028 KB Output is correct
16 Correct 10 ms 19028 KB Output is correct
17 Correct 139 ms 37640 KB Output is correct
18 Correct 129 ms 38356 KB Output is correct
19 Correct 169 ms 38208 KB Output is correct
20 Correct 152 ms 38908 KB Output is correct
21 Correct 163 ms 38892 KB Output is correct
22 Correct 156 ms 39892 KB Output is correct
23 Correct 137 ms 38592 KB Output is correct
24 Correct 105 ms 32008 KB Output is correct
25 Correct 147 ms 39908 KB Output is correct
26 Correct 142 ms 37176 KB Output is correct
27 Correct 132 ms 38292 KB Output is correct
28 Correct 122 ms 38336 KB Output is correct
29 Correct 135 ms 39932 KB Output is correct
30 Correct 103 ms 39608 KB Output is correct
31 Correct 10 ms 19016 KB Output is correct
32 Correct 189 ms 40140 KB Output is correct
33 Correct 185 ms 40144 KB Output is correct
34 Correct 161 ms 39836 KB Output is correct
35 Correct 130 ms 38096 KB Output is correct
36 Correct 182 ms 39936 KB Output is correct
37 Correct 179 ms 39864 KB Output is correct
38 Correct 158 ms 39884 KB Output is correct
39 Correct 95 ms 39708 KB Output is correct
40 Correct 129 ms 36444 KB Output is correct
41 Correct 183 ms 36272 KB Output is correct
42 Correct 10 ms 19028 KB Output is correct
43 Correct 209 ms 37540 KB Output is correct
44 Correct 196 ms 37960 KB Output is correct
45 Correct 193 ms 39000 KB Output is correct
46 Correct 183 ms 40240 KB Output is correct
47 Correct 163 ms 37816 KB Output is correct
48 Correct 122 ms 38536 KB Output is correct
49 Correct 93 ms 38520 KB Output is correct
50 Correct 122 ms 28932 KB Output is correct
51 Correct 168 ms 39580 KB Output is correct
52 Correct 145 ms 36248 KB Output is correct
53 Correct 11 ms 19028 KB Output is correct
54 Correct 12 ms 19084 KB Output is correct
55 Correct 11 ms 19032 KB Output is correct
56 Correct 11 ms 19284 KB Output is correct
57 Correct 12 ms 19284 KB Output is correct
58 Correct 12 ms 19196 KB Output is correct
59 Correct 11 ms 19264 KB Output is correct
60 Correct 11 ms 19156 KB Output is correct
61 Correct 13 ms 19284 KB Output is correct
62 Correct 10 ms 19284 KB Output is correct
63 Correct 10 ms 19284 KB Output is correct
64 Correct 10 ms 19316 KB Output is correct
65 Correct 12 ms 19216 KB Output is correct
66 Correct 11 ms 19276 KB Output is correct
67 Correct 138 ms 37748 KB Output is correct
68 Correct 124 ms 38328 KB Output is correct
69 Correct 149 ms 38356 KB Output is correct
70 Correct 195 ms 38840 KB Output is correct
71 Correct 147 ms 38952 KB Output is correct
72 Correct 162 ms 39884 KB Output is correct
73 Correct 125 ms 38632 KB Output is correct
74 Correct 105 ms 32056 KB Output is correct
75 Correct 136 ms 39804 KB Output is correct
76 Correct 163 ms 37252 KB Output is correct
77 Correct 134 ms 38456 KB Output is correct
78 Correct 133 ms 38412 KB Output is correct
79 Correct 138 ms 39900 KB Output is correct
80 Correct 92 ms 39712 KB Output is correct
81 Correct 182 ms 39904 KB Output is correct
82 Correct 185 ms 40120 KB Output is correct
83 Correct 152 ms 39920 KB Output is correct
84 Correct 122 ms 38004 KB Output is correct
85 Correct 190 ms 39916 KB Output is correct
86 Correct 147 ms 39924 KB Output is correct
87 Correct 139 ms 39820 KB Output is correct
88 Correct 121 ms 36416 KB Output is correct
89 Correct 157 ms 36412 KB Output is correct
90 Correct 184 ms 37564 KB Output is correct
91 Correct 212 ms 37928 KB Output is correct
92 Correct 218 ms 39100 KB Output is correct
93 Correct 176 ms 40152 KB Output is correct
94 Correct 150 ms 37832 KB Output is correct
95 Correct 130 ms 38536 KB Output is correct
96 Correct 102 ms 38564 KB Output is correct
97 Correct 99 ms 28920 KB Output is correct
98 Correct 170 ms 39480 KB Output is correct
99 Correct 150 ms 36344 KB Output is correct
100 Correct 45 ms 20812 KB Output is correct
101 Correct 214 ms 38284 KB Output is correct
102 Correct 152 ms 34324 KB Output is correct
103 Correct 161 ms 34216 KB Output is correct
104 Correct 200 ms 37028 KB Output is correct