oj.uz

Submission #903884

# Submission time Handle Problem Language Result Execution time Memory
903884 2024-01-11T13:14:22 Z LOLOLO Stranded Far From Home (BOI22_island) C++17
100 / 100
 224 ms 40820 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

#define           f     first
#define           s     second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (int)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    __builtin_popcountll(x)
#define       len(x)    (int)(x.length())

const int N = 2e5 + 100;
vector <int> save[N];
int sz[N], p[N], ans[N];
ll sum[N], s[N];

int get(int a) {
    if (p[a] == 0)
        return a;

    return get(p[a]);
}

void unite(int a, int b) {
    a = get(a);
    b = get(b);
    if (a == b)
        return;

    if (sz[a] < sz[b]) {
        swap(a, b);
    }

    for (auto x : save[b])
        save[a].pb(x);

    save[b].clear();
    sz[a] += sz[b];
    sum[a] += sum[b];
    p[b] = a;
}

vector <int> ed[N];
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, m;
    cin >> n >> m;

    fill(sz, sz + 1 + n, 1);

    vector <pair <ll, ll>> lst;

    for (int i = 1; i <= n; i++) {
        cin >> s[i];
        sum[i] = s[i];
        save[i].pb(i);
        lst.pb({s[i], i});
    }

    for (int i = 0; i < m; i++) {
        int a, b;
        cin >> a >> b;
        ed[a].pb(b);
        ed[b].pb(a);
    }

    sort(all(lst));

    for (auto e : lst) {
        int i = e.s;
        for (auto x : ed[i]) {
            if (s[x] > s[i])
                continue;

            int c = get(x);
            if (sum[c] < s[i]) {
                for (auto t : save[c]) {
                    ans[t] = 1;
                }

                save[c].clear();
            }

            unite(c, i);
        }
    }

    for (int i = 1; i <= n; i++)
        cout << !ans[i];
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 15196 KB Output is correct
2 Correct 3 ms 15196 KB Output is correct
3 Correct 4 ms 13148 KB Output is correct
4 Correct 4 ms 15456 KB Output is correct
5 Correct 5 ms 15452 KB Output is correct
6 Correct 5 ms 15464 KB Output is correct
7 Correct 4 ms 15456 KB Output is correct
8 Correct 4 ms 15456 KB Output is correct
9 Correct 4 ms 15464 KB Output is correct
10 Correct 4 ms 15464 KB Output is correct
11 Correct 4 ms 15556 KB Output is correct
12 Correct 5 ms 15464 KB Output is correct
13 Correct 5 ms 15464 KB Output is correct
14 Correct 5 ms 15464 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 15208 KB Output is correct
2 Correct 4 ms 13160 KB Output is correct
3 Correct 138 ms 37788 KB Output is correct
4 Correct 133 ms 36056 KB Output is correct
5 Correct 171 ms 38836 KB Output is correct
6 Correct 183 ms 38892 KB Output is correct
7 Correct 181 ms 39096 KB Output is correct
8 Correct 159 ms 37392 KB Output is correct
9 Correct 119 ms 40116 KB Output is correct
10 Correct 112 ms 35360 KB Output is correct
11 Correct 141 ms 37952 KB Output is correct
12 Correct 153 ms 36108 KB Output is correct
13 Correct 138 ms 35892 KB Output is correct
14 Correct 117 ms 36216 KB Output is correct
15 Correct 125 ms 37632 KB Output is correct
16 Correct 78 ms 37248 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 13144 KB Output is correct
2 Correct 173 ms 35944 KB Output is correct
3 Correct 173 ms 35256 KB Output is correct
4 Correct 148 ms 37624 KB Output is correct
5 Correct 112 ms 35416 KB Output is correct
6 Correct 200 ms 39696 KB Output is correct
7 Correct 145 ms 37300 KB Output is correct
8 Correct 133 ms 37456 KB Output is correct
9 Correct 82 ms 37504 KB Output is correct
10 Correct 125 ms 35728 KB Output is correct
11 Correct 158 ms 35484 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 13144 KB Output is correct
2 Correct 219 ms 37588 KB Output is correct
3 Correct 202 ms 37884 KB Output is correct
4 Correct 198 ms 38836 KB Output is correct
5 Correct 222 ms 40116 KB Output is correct
6 Correct 151 ms 37696 KB Output is correct
7 Correct 117 ms 38132 KB Output is correct
8 Correct 82 ms 35252 KB Output is correct
9 Correct 89 ms 27472 KB Output is correct
10 Correct 174 ms 40820 KB Output is correct
11 Correct 145 ms 36172 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 15196 KB Output is correct
2 Correct 3 ms 15196 KB Output is correct
3 Correct 4 ms 13148 KB Output is correct
4 Correct 4 ms 15456 KB Output is correct
5 Correct 5 ms 15452 KB Output is correct
6 Correct 5 ms 15464 KB Output is correct
7 Correct 4 ms 15456 KB Output is correct
8 Correct 4 ms 15456 KB Output is correct
9 Correct 4 ms 15464 KB Output is correct
10 Correct 4 ms 15464 KB Output is correct
11 Correct 4 ms 15556 KB Output is correct
12 Correct 5 ms 15464 KB Output is correct
13 Correct 5 ms 15464 KB Output is correct
14 Correct 5 ms 15464 KB Output is correct
15 Correct 3 ms 15208 KB Output is correct
16 Correct 4 ms 13160 KB Output is correct
17 Correct 138 ms 37788 KB Output is correct
18 Correct 133 ms 36056 KB Output is correct
19 Correct 171 ms 38836 KB Output is correct
20 Correct 183 ms 38892 KB Output is correct
21 Correct 181 ms 39096 KB Output is correct
22 Correct 159 ms 37392 KB Output is correct
23 Correct 119 ms 40116 KB Output is correct
24 Correct 112 ms 35360 KB Output is correct
25 Correct 141 ms 37952 KB Output is correct
26 Correct 153 ms 36108 KB Output is correct
27 Correct 138 ms 35892 KB Output is correct
28 Correct 117 ms 36216 KB Output is correct
29 Correct 125 ms 37632 KB Output is correct
30 Correct 78 ms 37248 KB Output is correct
31 Correct 3 ms 13144 KB Output is correct
32 Correct 173 ms 35944 KB Output is correct
33 Correct 173 ms 35256 KB Output is correct
34 Correct 148 ms 37624 KB Output is correct
35 Correct 112 ms 35416 KB Output is correct
36 Correct 200 ms 39696 KB Output is correct
37 Correct 145 ms 37300 KB Output is correct
38 Correct 133 ms 37456 KB Output is correct
39 Correct 82 ms 37504 KB Output is correct
40 Correct 125 ms 35728 KB Output is correct
41 Correct 158 ms 35484 KB Output is correct
42 Correct 3 ms 13144 KB Output is correct
43 Correct 219 ms 37588 KB Output is correct
44 Correct 202 ms 37884 KB Output is correct
45 Correct 198 ms 38836 KB Output is correct
46 Correct 222 ms 40116 KB Output is correct
47 Correct 151 ms 37696 KB Output is correct
48 Correct 117 ms 38132 KB Output is correct
49 Correct 82 ms 35252 KB Output is correct
50 Correct 89 ms 27472 KB Output is correct
51 Correct 174 ms 40820 KB Output is correct
52 Correct 145 ms 36172 KB Output is correct
53 Correct 3 ms 15196 KB Output is correct
54 Correct 4 ms 15196 KB Output is correct
55 Correct 3 ms 13148 KB Output is correct
56 Correct 6 ms 15448 KB Output is correct
57 Correct 4 ms 15456 KB Output is correct
58 Correct 4 ms 15308 KB Output is correct
59 Correct 4 ms 15448 KB Output is correct
60 Correct 5 ms 15448 KB Output is correct
61 Correct 4 ms 15452 KB Output is correct
62 Correct 4 ms 15452 KB Output is correct
63 Correct 4 ms 15448 KB Output is correct
64 Correct 5 ms 15452 KB Output is correct
65 Correct 4 ms 15452 KB Output is correct
66 Correct 4 ms 15452 KB Output is correct
67 Correct 118 ms 37012 KB Output is correct
68 Correct 123 ms 35892 KB Output is correct
69 Correct 160 ms 38928 KB Output is correct
70 Correct 163 ms 39512 KB Output is correct
71 Correct 154 ms 39608 KB Output is correct
72 Correct 142 ms 37300 KB Output is correct
73 Correct 130 ms 40024 KB Output is correct
74 Correct 112 ms 35488 KB Output is correct
75 Correct 142 ms 37052 KB Output is correct
76 Correct 123 ms 35252 KB Output is correct
77 Correct 113 ms 35932 KB Output is correct
78 Correct 116 ms 35836 KB Output is correct
79 Correct 106 ms 37232 KB Output is correct
80 Correct 99 ms 36452 KB Output is correct
81 Correct 186 ms 39608 KB Output is correct
82 Correct 182 ms 39576 KB Output is correct
83 Correct 141 ms 37308 KB Output is correct
84 Correct 103 ms 35936 KB Output is correct
85 Correct 224 ms 39432 KB Output is correct
86 Correct 120 ms 37300 KB Output is correct
87 Correct 170 ms 38092 KB Output is correct
88 Correct 99 ms 36532 KB Output is correct
89 Correct 135 ms 35532 KB Output is correct
90 Correct 189 ms 37360 KB Output is correct
91 Correct 162 ms 37676 KB Output is correct
92 Correct 198 ms 38760 KB Output is correct
93 Correct 204 ms 40116 KB Output is correct
94 Correct 133 ms 37556 KB Output is correct
95 Correct 112 ms 38480 KB Output is correct
96 Correct 82 ms 36088 KB Output is correct
97 Correct 79 ms 27396 KB Output is correct
98 Correct 147 ms 40588 KB Output is correct
99 Correct 161 ms 35764 KB Output is correct
100 Correct 33 ms 19580 KB Output is correct
101 Correct 157 ms 38072 KB Output is correct
102 Correct 151 ms 35164 KB Output is correct
103 Correct 163 ms 33972 KB Output is correct
104 Correct 147 ms 36720 KB Output is correct