oj.uz

Submission #1061537

# Submission time Handle Problem Language Result Execution time Memory
1061537 2024-08-16T10:43:45 Z TheQuantiX Fountain Parks (IOI21_parks) C++17
30 / 100
 3500 ms 206948 KB 
#include<bits/stdc++.h>
#include "parks.h"

using namespace std;
using ll = long long;

ll n, m, q, k, x, y, a, b, c;
map< pair< pair<ll, ll>, pair<ll, ll> >, vector< pair< pair<ll, ll>, pair<ll, ll> > > > G;
set< pair< pair<ll, ll>, pair<ll, ll> > > prs;

struct dsu {
    ll n;
    vector<ll> par;
    vector<ll> sz;
    
    dsu(ll N) : n(N) {
        par.resize(n);
        sz.resize(n);
        for (int i = 0; i < n; i++) {
            par[i] = i;
            sz[i] = 1;
        }
    }

    ll find_p(ll x) {
        if (par[x] == x) {
            return x;
        }
        ll p = find_p(par[x]);
        par[x] = p;
        return p;
    }

    void join(ll x, ll y) {
        x = find_p(x);
        y = find_p(y);
        if (x == y) {
            return;
        }
        if (sz[y] > sz[x]) {
            swap(x, y);
        }
        par[y] = x;
        sz[x] += sz[y];
    }
};

void dfs(pair< pair<ll, ll>, pair<ll, ll> > x, map< pair<ll, ll>, pair<ll, ll> > &mp) {
    // cout << x.first.first << ' ';
    // cout << x.first.second << '\t';
    // cout << x.second.first << ' ';
    // cout << x.second.second << '\n';
    mp[x.first] = x.second;
    for (auto i : G[x]) {
        if (!mp.count(i.first)) {
            dfs(i, mp);
        }
    }
}

int construct_roads(vector<int> x, vector<int> y) {
    n = x.size();
    array< vector<int>, 4 > ans;
    map< pair<ll, ll>, ll > pts;
    for (int i = 0; i < n; i++) {
        pts[{x[i], y[i]}] = i;
    }
    dsu d(n);
    map< pair<ll, ll>, vector< pair<ll, ll> > > vec;
    for (int i = 0; i < n; i++) {
        if (pts.count({x[i], y[i] - 2}) && d.find_p(i) != d.find_p(pts[{x[i], y[i] - 2}])) {
            d.join(i, pts[{x[i], y[i] - 2}]);
            vec[{x[i] - 1, y[i] - 1}].push_back({x[i], y[i] - 1});
            vec[{x[i] + 1, y[i] - 1}].push_back({x[i], y[i] - 1});
        }
        if (pts.count({x[i], y[i] + 2}) && d.find_p(i) != d.find_p(pts[{x[i], y[i] + 2}])) {
            d.join(i, pts[{x[i], y[i] + 2}]);
            vec[{x[i] - 1, y[i] + 1}].push_back({x[i], y[i] + 1});
            vec[{x[i] + 1, y[i] + 1}].push_back({x[i], y[i] + 1});
        }
    }
    for (int i = 0; i < n; i++) {
        if (pts.count({x[i] - 2, y[i]}) && d.find_p(i) != d.find_p(pts[{x[i] - 2, y[i]}])) {
            d.join(i, pts[{x[i] - 2, y[i]}]);
            vec[{x[i] - 1, y[i] + 1}].push_back({x[i] - 1, y[i]});
            vec[{x[i] - 1, y[i] - 1}].push_back({x[i] - 1, y[i]});
        }
        if (pts.count({x[i] + 2, y[i]}) && d.find_p(i) != d.find_p(pts[{x[i] + 2, y[i]}])) {
            d.join(i, pts[{x[i] + 2, y[i]}]);
            vec[{x[i] + 1, y[i] + 1}].push_back({x[i] + 1, y[i]});
            vec[{x[i] + 1, y[i] - 1}].push_back({x[i] + 1, y[i]});
        }
    }
    if (d.sz[d.find_p(0)] != n) {
        return 0;
    }
    for (auto &i : vec) {
        // cout << i.first.first << ' ' << i.first.second << '\n';
        for (auto j : i.second) {
            prs.insert({j, i.first});
            // cout << '\t' << j.first << ' ' << j.second << '\n';
            for (auto k : i.second) {
                if (j != k) {
                    G[{j, i.first}].push_back({k, {k.first + (k.first - i.first.first), k.second + (k.second - i.first.second)}});
                    // cout << "\t\t" << k.first + (k.first - i.first.first) << ' ' << k.second + (k.second - i.first.second) << '\n';
                }
            }
        }
    }
    map< pair<ll, ll>, pair<ll, ll> > mp;
    for (auto i : prs) {
        // cout << i.first.first.first << ' ' << i.first.first.second << '\n';
        if (mp.count(i.first)) {
            continue;
        }
        map< pair<ll, ll>, pair<ll, ll> > mp1;
        dfs(i, mp1);
        for (auto j : mp1) {
            if (mp.count(j.first)) {
                continue;
            }
            if (j.first.first % 2 == 0) {
                ans[0].push_back(pts[{j.first.first, j.first.second - 1}]);
                ans[1].push_back(pts[{j.first.first, j.first.second + 1}]);
            }
            else {
                ans[0].push_back(pts[{j.first.first - 1, j.first.second}]);
                ans[1].push_back(pts[{j.first.first + 1, j.first.second}]);
            }
            ans[2].push_back(j.second.first);
            ans[3].push_back(j.second.second);
            mp[j.first] = j.second;
        }
    }
    build(ans[0], ans[1], ans[2], ans[3]);
    return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 405 ms 69164 KB Output is correct
10 Correct 19 ms 7516 KB Output is correct
11 Correct 137 ms 37320 KB Output is correct
12 Correct 30 ms 10844 KB Output is correct
13 Correct 59 ms 14160 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 860 KB Output is correct
16 Correct 373 ms 69116 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 405 ms 69164 KB Output is correct
10 Correct 19 ms 7516 KB Output is correct
11 Correct 137 ms 37320 KB Output is correct
12 Correct 30 ms 10844 KB Output is correct
13 Correct 59 ms 14160 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 860 KB Output is correct
16 Correct 373 ms 69116 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1175 ms 147608 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 3 ms 1284 KB Output is correct
26 Correct 5 ms 1112 KB Output is correct
27 Correct 6 ms 1372 KB Output is correct
28 Correct 383 ms 59216 KB Output is correct
29 Correct 671 ms 88756 KB Output is correct
30 Correct 973 ms 118372 KB Output is correct
31 Correct 1371 ms 147536 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 4 ms 860 KB Output is correct
44 Correct 4 ms 1112 KB Output is correct
45 Correct 526 ms 78412 KB Output is correct
46 Correct 765 ms 113572 KB Output is correct
47 Correct 768 ms 113576 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 405 ms 69164 KB Output is correct
10 Correct 19 ms 7516 KB Output is correct
11 Correct 137 ms 37320 KB Output is correct
12 Correct 30 ms 10844 KB Output is correct
13 Correct 59 ms 14160 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 860 KB Output is correct
16 Correct 373 ms 69116 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1175 ms 147608 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 3 ms 1284 KB Output is correct
26 Correct 5 ms 1112 KB Output is correct
27 Correct 6 ms 1372 KB Output is correct
28 Correct 383 ms 59216 KB Output is correct
29 Correct 671 ms 88756 KB Output is correct
30 Correct 973 ms 118372 KB Output is correct
31 Correct 1371 ms 147536 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 4 ms 860 KB Output is correct
44 Correct 4 ms 1112 KB Output is correct
45 Correct 526 ms 78412 KB Output is correct
46 Correct 765 ms 113572 KB Output is correct
47 Correct 768 ms 113576 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 1 ms 344 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 1255 ms 151208 KB Output is correct
56 Correct 1 ms 344 KB Output is correct
57 Correct 5 ms 1628 KB Output is correct
58 Correct 18 ms 4868 KB Output is correct
59 Correct 17 ms 2872 KB Output is correct
60 Correct 496 ms 75816 KB Output is correct
61 Correct 799 ms 102052 KB Output is correct
62 Correct 988 ms 124972 KB Output is correct
63 Correct 1324 ms 151284 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 946 ms 138076 KB Output is correct
68 Correct 941 ms 138172 KB Output is correct
69 Correct 963 ms 137384 KB Output is correct
70 Correct 6 ms 1372 KB Output is correct
71 Correct 13 ms 2436 KB Output is correct
72 Correct 537 ms 78600 KB Output is correct
73 Correct 846 ms 117632 KB Output is correct
74 Correct 1218 ms 156748 KB Output is correct
75 Correct 1076 ms 150696 KB Output is correct
76 Correct 952 ms 138148 KB Output is correct
77 Correct 9 ms 1628 KB Output is correct
78 Correct 15 ms 2860 KB Output is correct
79 Correct 511 ms 77356 KB Output is correct
80 Correct 843 ms 115880 KB Output is correct
81 Correct 1277 ms 154360 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 405 ms 69164 KB Output is correct
10 Correct 19 ms 7516 KB Output is correct
11 Correct 137 ms 37320 KB Output is correct
12 Correct 30 ms 10844 KB Output is correct
13 Correct 59 ms 14160 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 860 KB Output is correct
16 Correct 373 ms 69116 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1129 ms 206948 KB Output is correct
21 Execution timed out 3538 ms 139600 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 405 ms 69164 KB Output is correct
10 Correct 19 ms 7516 KB Output is correct
11 Correct 137 ms 37320 KB Output is correct
12 Correct 30 ms 10844 KB Output is correct
13 Correct 59 ms 14160 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 860 KB Output is correct
16 Correct 373 ms 69116 KB Output is correct
17 Correct 945 ms 138148 KB Output is correct
18 Correct 905 ms 138132 KB Output is correct
19 Execution timed out 3530 ms 160320 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 405 ms 69164 KB Output is correct
10 Correct 19 ms 7516 KB Output is correct
11 Correct 137 ms 37320 KB Output is correct
12 Correct 30 ms 10844 KB Output is correct
13 Correct 59 ms 14160 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 860 KB Output is correct
16 Correct 373 ms 69116 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1175 ms 147608 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 3 ms 1284 KB Output is correct
26 Correct 5 ms 1112 KB Output is correct
27 Correct 6 ms 1372 KB Output is correct
28 Correct 383 ms 59216 KB Output is correct
29 Correct 671 ms 88756 KB Output is correct
30 Correct 973 ms 118372 KB Output is correct
31 Correct 1371 ms 147536 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 4 ms 860 KB Output is correct
44 Correct 4 ms 1112 KB Output is correct
45 Correct 526 ms 78412 KB Output is correct
46 Correct 765 ms 113572 KB Output is correct
47 Correct 768 ms 113576 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 1 ms 344 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 1255 ms 151208 KB Output is correct
56 Correct 1 ms 344 KB Output is correct
57 Correct 5 ms 1628 KB Output is correct
58 Correct 18 ms 4868 KB Output is correct
59 Correct 17 ms 2872 KB Output is correct
60 Correct 496 ms 75816 KB Output is correct
61 Correct 799 ms 102052 KB Output is correct
62 Correct 988 ms 124972 KB Output is correct
63 Correct 1324 ms 151284 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 946 ms 138076 KB Output is correct
68 Correct 941 ms 138172 KB Output is correct
69 Correct 963 ms 137384 KB Output is correct
70 Correct 6 ms 1372 KB Output is correct
71 Correct 13 ms 2436 KB Output is correct
72 Correct 537 ms 78600 KB Output is correct
73 Correct 846 ms 117632 KB Output is correct
74 Correct 1218 ms 156748 KB Output is correct
75 Correct 1076 ms 150696 KB Output is correct
76 Correct 952 ms 138148 KB Output is correct
77 Correct 9 ms 1628 KB Output is correct
78 Correct 15 ms 2860 KB Output is correct
79 Correct 511 ms 77356 KB Output is correct
80 Correct 843 ms 115880 KB Output is correct
81 Correct 1277 ms 154360 KB Output is correct
82 Correct 1 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 1 ms 348 KB Output is correct
85 Correct 1129 ms 206948 KB Output is correct
86 Execution timed out 3538 ms 139600 KB Time limit exceeded
87 Halted 0 ms 0 KB -