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Submission #668161

# Submission time Handle Problem Language Result Execution time Memory
668161 2022-12-03T06:36:38 Z fatemetmhr Stranded Far From Home (BOI22_island) C++17
100 / 100
 242 ms 43836 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

#define all(x) x.begin(), x.end()
#define pb     push_back
#define fi     first
#define se     second

const int maxn5 = 3e5 + 10;

ll s[maxn5], sum[maxn5];
int cmp[maxn5];
bool mark[maxn5], seen[maxn5];
vector <int> adj[maxn5], av[maxn5];
vector <pair<int, int>> ver;

void merge(int a, int b){
    if(av[a].size() < av[b].size())
        swap(a, b);
    for(auto u : av[b]){
        cmp[u] = a;
        av[a].pb(u);
    }
    sum[a] += sum[b];
    av[b].clear();
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0);

    int n, m; cin >> n >> m;

    for(int i = 0; i < n; i++){
        cin >> s[i];
        ver.pb({s[i], i});
    }
    for(int i = 0; i < m; i++){
        int a, b; cin >> a >> b;
        a--; b--;
        adj[a].pb(b);
        adj[b].pb(a);
    }
    sort(all(ver));
    memset(mark, true, sizeof mark);
    for(int i = 0; i < n; i++){
        cmp[i] = i;
        av[i].pb(i);
        sum[i] = s[i];
    }
    for(auto [val, v] : ver){
        seen[v] = true;
        for(auto u : adj[v]) if(cmp[u] != cmp[v] && seen[u]){
            if(sum[cmp[u]] < s[v])
                for(auto z : av[cmp[u]])
                    mark[z] = false;
            merge(cmp[u], cmp[v]);
        }
    }
    for(int i = 0; i < n; i++)
        cout << mark[i];
    cout << endl;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14676 KB Output is correct
2 Correct 7 ms 14676 KB Output is correct
3 Correct 7 ms 14676 KB Output is correct
4 Correct 8 ms 14808 KB Output is correct
5 Correct 10 ms 14892 KB Output is correct
6 Correct 9 ms 14804 KB Output is correct
7 Correct 9 ms 14840 KB Output is correct
8 Correct 9 ms 14804 KB Output is correct
9 Correct 10 ms 14868 KB Output is correct
10 Correct 8 ms 14868 KB Output is correct
11 Correct 9 ms 14968 KB Output is correct
12 Correct 8 ms 14932 KB Output is correct
13 Correct 9 ms 14804 KB Output is correct
14 Correct 10 ms 14940 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14676 KB Output is correct
2 Correct 7 ms 14676 KB Output is correct
3 Correct 140 ms 34908 KB Output is correct
4 Correct 136 ms 34936 KB Output is correct
5 Correct 171 ms 38740 KB Output is correct
6 Correct 174 ms 39564 KB Output is correct
7 Correct 183 ms 39620 KB Output is correct
8 Correct 174 ms 34980 KB Output is correct
9 Correct 157 ms 43784 KB Output is correct
10 Correct 151 ms 35672 KB Output is correct
11 Correct 138 ms 35700 KB Output is correct
12 Correct 217 ms 35912 KB Output is correct
13 Correct 180 ms 34872 KB Output is correct
14 Correct 168 ms 34904 KB Output is correct
15 Correct 140 ms 34924 KB Output is correct
16 Correct 90 ms 34712 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14676 KB Output is correct
2 Correct 242 ms 41220 KB Output is correct
3 Correct 223 ms 41172 KB Output is correct
4 Correct 175 ms 34904 KB Output is correct
5 Correct 144 ms 34920 KB Output is correct
6 Correct 203 ms 41196 KB Output is correct
7 Correct 184 ms 34816 KB Output is correct
8 Correct 166 ms 34872 KB Output is correct
9 Correct 91 ms 34632 KB Output is correct
10 Correct 157 ms 34960 KB Output is correct
11 Correct 194 ms 35816 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14676 KB Output is correct
2 Correct 226 ms 36720 KB Output is correct
3 Correct 235 ms 37352 KB Output is correct
4 Correct 231 ms 38504 KB Output is correct
5 Correct 190 ms 37464 KB Output is correct
6 Correct 165 ms 35060 KB Output is correct
7 Correct 132 ms 35708 KB Output is correct
8 Correct 95 ms 34916 KB Output is correct
9 Correct 102 ms 26256 KB Output is correct
10 Correct 180 ms 38412 KB Output is correct
11 Correct 163 ms 35648 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14676 KB Output is correct
2 Correct 7 ms 14676 KB Output is correct
3 Correct 7 ms 14676 KB Output is correct
4 Correct 8 ms 14808 KB Output is correct
5 Correct 10 ms 14892 KB Output is correct
6 Correct 9 ms 14804 KB Output is correct
7 Correct 9 ms 14840 KB Output is correct
8 Correct 9 ms 14804 KB Output is correct
9 Correct 10 ms 14868 KB Output is correct
10 Correct 8 ms 14868 KB Output is correct
11 Correct 9 ms 14968 KB Output is correct
12 Correct 8 ms 14932 KB Output is correct
13 Correct 9 ms 14804 KB Output is correct
14 Correct 10 ms 14940 KB Output is correct
15 Correct 8 ms 14676 KB Output is correct
16 Correct 7 ms 14676 KB Output is correct
17 Correct 140 ms 34908 KB Output is correct
18 Correct 136 ms 34936 KB Output is correct
19 Correct 171 ms 38740 KB Output is correct
20 Correct 174 ms 39564 KB Output is correct
21 Correct 183 ms 39620 KB Output is correct
22 Correct 174 ms 34980 KB Output is correct
23 Correct 157 ms 43784 KB Output is correct
24 Correct 151 ms 35672 KB Output is correct
25 Correct 138 ms 35700 KB Output is correct
26 Correct 217 ms 35912 KB Output is correct
27 Correct 180 ms 34872 KB Output is correct
28 Correct 168 ms 34904 KB Output is correct
29 Correct 140 ms 34924 KB Output is correct
30 Correct 90 ms 34712 KB Output is correct
31 Correct 7 ms 14676 KB Output is correct
32 Correct 242 ms 41220 KB Output is correct
33 Correct 223 ms 41172 KB Output is correct
34 Correct 175 ms 34904 KB Output is correct
35 Correct 144 ms 34920 KB Output is correct
36 Correct 203 ms 41196 KB Output is correct
37 Correct 184 ms 34816 KB Output is correct
38 Correct 166 ms 34872 KB Output is correct
39 Correct 91 ms 34632 KB Output is correct
40 Correct 157 ms 34960 KB Output is correct
41 Correct 194 ms 35816 KB Output is correct
42 Correct 7 ms 14676 KB Output is correct
43 Correct 226 ms 36720 KB Output is correct
44 Correct 235 ms 37352 KB Output is correct
45 Correct 231 ms 38504 KB Output is correct
46 Correct 190 ms 37464 KB Output is correct
47 Correct 165 ms 35060 KB Output is correct
48 Correct 132 ms 35708 KB Output is correct
49 Correct 95 ms 34916 KB Output is correct
50 Correct 102 ms 26256 KB Output is correct
51 Correct 180 ms 38412 KB Output is correct
52 Correct 163 ms 35648 KB Output is correct
53 Correct 7 ms 14676 KB Output is correct
54 Correct 9 ms 14676 KB Output is correct
55 Correct 8 ms 14676 KB Output is correct
56 Correct 9 ms 14804 KB Output is correct
57 Correct 9 ms 14932 KB Output is correct
58 Correct 8 ms 14804 KB Output is correct
59 Correct 9 ms 14804 KB Output is correct
60 Correct 11 ms 14804 KB Output is correct
61 Correct 8 ms 14900 KB Output is correct
62 Correct 9 ms 15060 KB Output is correct
63 Correct 9 ms 14932 KB Output is correct
64 Correct 9 ms 14932 KB Output is correct
65 Correct 9 ms 14912 KB Output is correct
66 Correct 9 ms 14932 KB Output is correct
67 Correct 150 ms 34928 KB Output is correct
68 Correct 148 ms 35008 KB Output is correct
69 Correct 169 ms 38832 KB Output is correct
70 Correct 178 ms 39572 KB Output is correct
71 Correct 175 ms 39548 KB Output is correct
72 Correct 144 ms 34900 KB Output is correct
73 Correct 154 ms 43836 KB Output is correct
74 Correct 156 ms 35656 KB Output is correct
75 Correct 142 ms 35648 KB Output is correct
76 Correct 154 ms 35852 KB Output is correct
77 Correct 130 ms 34924 KB Output is correct
78 Correct 138 ms 34820 KB Output is correct
79 Correct 134 ms 34808 KB Output is correct
80 Correct 90 ms 34708 KB Output is correct
81 Correct 205 ms 41208 KB Output is correct
82 Correct 206 ms 41208 KB Output is correct
83 Correct 154 ms 34912 KB Output is correct
84 Correct 133 ms 34928 KB Output is correct
85 Correct 209 ms 41208 KB Output is correct
86 Correct 157 ms 34820 KB Output is correct
87 Correct 145 ms 34876 KB Output is correct
88 Correct 141 ms 34816 KB Output is correct
89 Correct 163 ms 35780 KB Output is correct
90 Correct 212 ms 36672 KB Output is correct
91 Correct 208 ms 37344 KB Output is correct
92 Correct 223 ms 38468 KB Output is correct
93 Correct 189 ms 37472 KB Output is correct
94 Correct 165 ms 35008 KB Output is correct
95 Correct 146 ms 35608 KB Output is correct
96 Correct 97 ms 34912 KB Output is correct
97 Correct 111 ms 26284 KB Output is correct
98 Correct 169 ms 38504 KB Output is correct
99 Correct 154 ms 35652 KB Output is correct
100 Correct 43 ms 17064 KB Output is correct
101 Correct 237 ms 38068 KB Output is correct
102 Correct 152 ms 31084 KB Output is correct
103 Correct 182 ms 32248 KB Output is correct
104 Correct 226 ms 35928 KB Output is correct