oj.uz

Submission #730330

# Submission time Handle Problem Language Result Execution time Memory
730330 2023-04-25T17:30:23 Z pls33 Stranded Far From Home (BOI22_island) C++17
100 / 100
 205 ms 16976 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

#pragma region dalykai
template <typename F>
void _debug(F f)
{
    f();
}

#ifndef _AAAAAAAAA
#define debug(x)
#else
#define debug(x) _debug(x)
#endif
using p32 = pair<int, int>;
using p32u = pair<uint32_t, uint32_t>;
using p64 = pair<int64_t, int64_t>;
using p64u = pair<uint64_t, uint64_t>;
using vi16 = vector<int16_t>;
using vi16u = vector<uint16_t>;
using vi32 = vector<int>;
using vi32u = vector<uint32_t>;
using vi64 = vector<int64_t>;
using vi64u = vector<uint64_t>;
using vp32 = vector<p32>;
using vp32u = vector<p32u>;
using vp64 = vector<p64>;
using vp64u = vector<p64u>;
using vvi32 = vector<vi32>;
using vvi32u = vector<vi32u>;
using vvi64 = vector<vi64>;
using vvi64u = vector<vi64u>;
using vvp32 = vector<vp32>;
using vvp32u = vector<vp32u>;
using vvp64 = vector<vp64>;
using vvp64u = vector<vp64u>;
using f80 = long double;
#pragma endregion

using state_t = bitset<(int)2e5>;

struct dsu_t
{
    vi32 parent;
    vi64 weight;
    state_t marked;

    dsu_t(int n) : parent(n), weight(n)
    {
        iota(parent.begin(), parent.end(), 0);
    }

    int find_set(int a)
    {
        if (parent[a] == a)
        {
            return a;
        }

        int p = a;
        while (p != parent[p])
        {
            if (marked[p])
            {
                marked[a] = true;
            }
            p = parent[p];
        }

        return p;
    }

    void unite(int a, int b)
    {
        a = find_set(a);
        b = find_set(b);

        if (a == b)
        {
            return;
        }

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

        parent[b] = a;
        weight[a] += weight[b];
    }
};

int main()
{
#ifndef _AAAAAAAAA
    ios_base::sync_with_stdio(false);
    cin.tie(0);
#else
    freopen("sala.in", "r", stdin);
#ifndef __linux__
    atexit([]()
           {
        freopen("con", "r", stdin);
        system("pause"); });
#endif
#endif

    int v, e;
    cin >> v >> e;

    vi64 weight(v);
    for (auto &w : weight)
    {
        cin >> w;
    }

    vi32 order(v);
    iota(order.begin(), order.end(), 0);
    sort(order.begin(), order.end(),
         [&](int a, int b)
         {
             return weight[a] < weight[b];
             //
         });

    vvi32 adj(v);
    for (int i = 0; i < e; i++)
    {
        int a, b;
        cin >> a >> b;

        a--;
        b--;

        adj[a].push_back(b);
        adj[b].push_back(a);
    }

    dsu_t dsu(v);
    dsu.weight = weight;

    for (auto &i : order)
    {
        for (auto &next : adj[i])
        {
            if (weight[next] > weight[i])
            {
                continue;
            }

            next = dsu.find_set(next);

            if (dsu.weight[next] < weight[i])
            {
                dsu.marked[next] = true;
            }
            dsu.unite(i, next);
        }
    }

    for (int i = 0; i < v; i++)
    {
        dsu.find_set(i);
        cout << !dsu.marked[i];
    }
    cout << '\n';

    return 0;
}

Compilation message

island.cpp:8: warning: ignoring '#pragma region dalykai' [-Wunknown-pragmas]
    8 | #pragma region dalykai
      | 
island.cpp:43: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas]
   43 | #pragma endregion
      |

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 2 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 144 ms 16232 KB Output is correct
4 Correct 127 ms 16144 KB Output is correct
5 Correct 128 ms 15664 KB Output is correct
6 Correct 155 ms 16148 KB Output is correct
7 Correct 146 ms 16204 KB Output is correct
8 Correct 138 ms 16220 KB Output is correct
9 Correct 144 ms 16116 KB Output is correct
10 Correct 96 ms 16920 KB Output is correct
11 Correct 102 ms 16976 KB Output is correct
12 Correct 159 ms 16248 KB Output is correct
13 Correct 114 ms 16172 KB Output is correct
14 Correct 130 ms 16076 KB Output is correct
15 Correct 129 ms 16120 KB Output is correct
16 Correct 75 ms 15976 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 162 ms 15996 KB Output is correct
3 Correct 165 ms 16132 KB Output is correct
4 Correct 133 ms 16172 KB Output is correct
5 Correct 149 ms 16124 KB Output is correct
6 Correct 158 ms 16204 KB Output is correct
7 Correct 142 ms 16112 KB Output is correct
8 Correct 171 ms 16088 KB Output is correct
9 Correct 84 ms 15972 KB Output is correct
10 Correct 128 ms 16084 KB Output is correct
11 Correct 124 ms 16124 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 183 ms 16152 KB Output is correct
3 Correct 189 ms 16128 KB Output is correct
4 Correct 185 ms 16264 KB Output is correct
5 Correct 172 ms 16124 KB Output is correct
6 Correct 158 ms 15436 KB Output is correct
7 Correct 106 ms 16904 KB Output is correct
8 Correct 98 ms 16100 KB Output is correct
9 Correct 107 ms 9224 KB Output is correct
10 Correct 136 ms 16176 KB Output is correct
11 Correct 140 ms 16116 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 2 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 144 ms 16232 KB Output is correct
18 Correct 127 ms 16144 KB Output is correct
19 Correct 128 ms 15664 KB Output is correct
20 Correct 155 ms 16148 KB Output is correct
21 Correct 146 ms 16204 KB Output is correct
22 Correct 138 ms 16220 KB Output is correct
23 Correct 144 ms 16116 KB Output is correct
24 Correct 96 ms 16920 KB Output is correct
25 Correct 102 ms 16976 KB Output is correct
26 Correct 159 ms 16248 KB Output is correct
27 Correct 114 ms 16172 KB Output is correct
28 Correct 130 ms 16076 KB Output is correct
29 Correct 129 ms 16120 KB Output is correct
30 Correct 75 ms 15976 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 162 ms 15996 KB Output is correct
33 Correct 165 ms 16132 KB Output is correct
34 Correct 133 ms 16172 KB Output is correct
35 Correct 149 ms 16124 KB Output is correct
36 Correct 158 ms 16204 KB Output is correct
37 Correct 142 ms 16112 KB Output is correct
38 Correct 171 ms 16088 KB Output is correct
39 Correct 84 ms 15972 KB Output is correct
40 Correct 128 ms 16084 KB Output is correct
41 Correct 124 ms 16124 KB Output is correct
42 Correct 0 ms 340 KB Output is correct
43 Correct 183 ms 16152 KB Output is correct
44 Correct 189 ms 16128 KB Output is correct
45 Correct 185 ms 16264 KB Output is correct
46 Correct 172 ms 16124 KB Output is correct
47 Correct 158 ms 15436 KB Output is correct
48 Correct 106 ms 16904 KB Output is correct
49 Correct 98 ms 16100 KB Output is correct
50 Correct 107 ms 9224 KB Output is correct
51 Correct 136 ms 16176 KB Output is correct
52 Correct 140 ms 16116 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 0 ms 340 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 2 ms 468 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 468 KB Output is correct
62 Correct 2 ms 468 KB Output is correct
63 Correct 1 ms 468 KB Output is correct
64 Correct 1 ms 596 KB Output is correct
65 Correct 1 ms 468 KB Output is correct
66 Correct 1 ms 428 KB Output is correct
67 Correct 121 ms 16132 KB Output is correct
68 Correct 130 ms 16204 KB Output is correct
69 Correct 150 ms 15664 KB Output is correct
70 Correct 168 ms 16140 KB Output is correct
71 Correct 149 ms 16220 KB Output is correct
72 Correct 164 ms 16332 KB Output is correct
73 Correct 168 ms 16176 KB Output is correct
74 Correct 96 ms 16932 KB Output is correct
75 Correct 97 ms 16916 KB Output is correct
76 Correct 143 ms 16188 KB Output is correct
77 Correct 130 ms 16136 KB Output is correct
78 Correct 136 ms 16140 KB Output is correct
79 Correct 120 ms 16076 KB Output is correct
80 Correct 81 ms 15996 KB Output is correct
81 Correct 155 ms 15980 KB Output is correct
82 Correct 178 ms 16140 KB Output is correct
83 Correct 126 ms 16176 KB Output is correct
84 Correct 150 ms 16156 KB Output is correct
85 Correct 205 ms 16124 KB Output is correct
86 Correct 146 ms 16092 KB Output is correct
87 Correct 152 ms 16132 KB Output is correct
88 Correct 114 ms 16180 KB Output is correct
89 Correct 129 ms 16156 KB Output is correct
90 Correct 168 ms 16104 KB Output is correct
91 Correct 162 ms 16100 KB Output is correct
92 Correct 152 ms 16180 KB Output is correct
93 Correct 160 ms 16128 KB Output is correct
94 Correct 138 ms 15400 KB Output is correct
95 Correct 120 ms 16872 KB Output is correct
96 Correct 91 ms 16120 KB Output is correct
97 Correct 88 ms 9160 KB Output is correct
98 Correct 138 ms 16180 KB Output is correct
99 Correct 148 ms 16068 KB Output is correct
100 Correct 35 ms 2700 KB Output is correct
101 Correct 175 ms 16256 KB Output is correct
102 Correct 167 ms 12904 KB Output is correct
103 Correct 168 ms 13668 KB Output is correct
104 Correct 177 ms 15924 KB Output is correct