oj.uz

Submission #1104158

# Submission time Handle Problem Language Result Execution time Memory
1104158 2024-10-23T03:42:17 Z Ice_man Stranded Far From Home (BOI22_island) C++14
100 / 100
 474 ms 99144 KB 
/**
 ____    ____    ____    __________________    ____    ____    ____
||I ||  ||c ||  ||e ||  ||                ||  ||M ||  ||a ||  ||n ||
||__||  ||__||  ||__||  ||________________||  ||__||  ||__||  ||__||
|/__\|  |/__\|  |/__\|  |/________________\|  |/__\|  |/__\|  |/__\|

*/

#include <iostream>
#include <chrono>
#include <set>
#include <algorithm>
#include <vector>

#define maxn 200005
#define maxlog 20
#define INF 1000000010
#define LINF 1000000000000000005
#define endl '\n'
#define pb(x) push_back(x)
#define X first
#define Y second
#define control cout<<"passed"<<endl;

using namespace std;


typedef unsigned long long ull;
typedef pair <int, int> pii;
typedef long long ll;
typedef pair <ll, ll> pll;
typedef pair <int, ll> pil;
typedef pair <ll, int> pli;
typedef long double pd;


ll n, m;
ll s[maxn];
set <ll> v[maxn];
pii sorted[maxn];

void read()
{
    cin >> n >> m;

    for(ll i = 1; i <= n; i++)
        cin >> s[i];

    for(ll i = 1; i <= n; i++)
        sorted[i] = {s[i], i};

    ll x, y;
    for(ll i = 1; i <= m; i++)
    {
        cin >> x >> y;

        v[x].insert(y);
        v[y].insert(x);
    }
    sort(sorted + 1, sorted + 1 + n);

    /**for(ll i = 1; i <= n; i++)
        cout << sorted[i].X << " " << sorted[i].Y << endl;*/
}

ll par[maxn], sz[maxn], sum[maxn];
bool lamp[maxn];
set <ll> nodes[maxn];

ll f(ll node)
{
    return node == par[node]? node : par[node] = f(par[node]);
}


void unite(ll a, ll b)
{
    a = f(a);
    b = f(b);

    if(a == b)
        return;

    if(sz[b] > sz[a])
        swap(a, b);

    for(auto e : nodes[b])
        nodes[a].insert(e);
    sum[a] += sum[b];
    par[b] = a;
    sz[a] += sz[b];
}



void solve()
{
    for(ll i = 1; i <= n; i++)
    {
        nodes[i].clear();
        par[i] = i;
        sz[i] = 1;
        lamp[i] = false;
        sum[i] = 0;
    }

    for(ll i = 1; i <= n; i++)
    {
        ll curr = sorted[i].Y;

        //cout << curr << endl;

        vector <ll> act;

        for(auto e : v[curr])
            if(lamp[e] == true)
                act.pb(f(e));

        lamp[curr] = true;
        nodes[curr].insert(curr);
        sum[curr] = s[curr];

        for(auto e : act)
            if(s[curr] > sum[e])
            {
                nodes[e].clear();
                unite(e, curr);
            }
        for(auto e : act)
            unite(e , curr);
    }

    for(ll i = 1; i <= n; i++)
    {
        ll a = f(1);

        auto p1 = nodes[a].find(i);
        if(p1 == nodes[a].end())
            cout << '0';
        else
            cout << '1';
    }
}




int main()
{

    /**#ifdef ONLINE_JUDGE /// promeni
        freopen("taxi.in", "r", stdin);
        freopen("taxi.out", "w", stdout);
    #endif*/

    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);


    read();
    solve();

    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 25680 KB Output is correct
2 Correct 5 ms 25848 KB Output is correct
3 Correct 4 ms 25680 KB Output is correct
4 Correct 6 ms 25904 KB Output is correct
5 Correct 6 ms 25936 KB Output is correct
6 Correct 7 ms 26108 KB Output is correct
7 Correct 7 ms 25936 KB Output is correct
8 Correct 6 ms 25936 KB Output is correct
9 Correct 6 ms 25908 KB Output is correct
10 Correct 8 ms 26192 KB Output is correct
11 Correct 8 ms 26192 KB Output is correct
12 Correct 7 ms 26192 KB Output is correct
13 Correct 5 ms 25936 KB Output is correct
14 Correct 7 ms 25936 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 25852 KB Output is correct
2 Correct 5 ms 25848 KB Output is correct
3 Correct 206 ms 63944 KB Output is correct
4 Correct 242 ms 67912 KB Output is correct
5 Correct 271 ms 77644 KB Output is correct
6 Correct 330 ms 80708 KB Output is correct
7 Correct 314 ms 79844 KB Output is correct
8 Correct 225 ms 69196 KB Output is correct
9 Correct 239 ms 87888 KB Output is correct
10 Correct 265 ms 62148 KB Output is correct
11 Correct 267 ms 68352 KB Output is correct
12 Correct 239 ms 65068 KB Output is correct
13 Correct 187 ms 67816 KB Output is correct
14 Correct 207 ms 68004 KB Output is correct
15 Correct 199 ms 69448 KB Output is correct
16 Correct 146 ms 68284 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 25680 KB Output is correct
2 Correct 385 ms 83528 KB Output is correct
3 Correct 398 ms 87960 KB Output is correct
4 Correct 281 ms 69344 KB Output is correct
5 Correct 208 ms 67856 KB Output is correct
6 Correct 361 ms 87512 KB Output is correct
7 Correct 231 ms 69516 KB Output is correct
8 Correct 234 ms 69448 KB Output is correct
9 Correct 157 ms 68168 KB Output is correct
10 Correct 257 ms 64072 KB Output is correct
11 Correct 258 ms 68424 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 25680 KB Output is correct
2 Correct 402 ms 69016 KB Output is correct
3 Correct 369 ms 76616 KB Output is correct
4 Correct 416 ms 84040 KB Output is correct
5 Correct 469 ms 94820 KB Output is correct
6 Correct 432 ms 80712 KB Output is correct
7 Correct 290 ms 69380 KB Output is correct
8 Correct 127 ms 63496 KB Output is correct
9 Correct 209 ms 54856 KB Output is correct
10 Correct 382 ms 98888 KB Output is correct
11 Correct 220 ms 68224 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 25680 KB Output is correct
2 Correct 5 ms 25848 KB Output is correct
3 Correct 4 ms 25680 KB Output is correct
4 Correct 6 ms 25904 KB Output is correct
5 Correct 6 ms 25936 KB Output is correct
6 Correct 7 ms 26108 KB Output is correct
7 Correct 7 ms 25936 KB Output is correct
8 Correct 6 ms 25936 KB Output is correct
9 Correct 6 ms 25908 KB Output is correct
10 Correct 8 ms 26192 KB Output is correct
11 Correct 8 ms 26192 KB Output is correct
12 Correct 7 ms 26192 KB Output is correct
13 Correct 5 ms 25936 KB Output is correct
14 Correct 7 ms 25936 KB Output is correct
15 Correct 5 ms 25852 KB Output is correct
16 Correct 5 ms 25848 KB Output is correct
17 Correct 206 ms 63944 KB Output is correct
18 Correct 242 ms 67912 KB Output is correct
19 Correct 271 ms 77644 KB Output is correct
20 Correct 330 ms 80708 KB Output is correct
21 Correct 314 ms 79844 KB Output is correct
22 Correct 225 ms 69196 KB Output is correct
23 Correct 239 ms 87888 KB Output is correct
24 Correct 265 ms 62148 KB Output is correct
25 Correct 267 ms 68352 KB Output is correct
26 Correct 239 ms 65068 KB Output is correct
27 Correct 187 ms 67816 KB Output is correct
28 Correct 207 ms 68004 KB Output is correct
29 Correct 199 ms 69448 KB Output is correct
30 Correct 146 ms 68284 KB Output is correct
31 Correct 6 ms 25680 KB Output is correct
32 Correct 385 ms 83528 KB Output is correct
33 Correct 398 ms 87960 KB Output is correct
34 Correct 281 ms 69344 KB Output is correct
35 Correct 208 ms 67856 KB Output is correct
36 Correct 361 ms 87512 KB Output is correct
37 Correct 231 ms 69516 KB Output is correct
38 Correct 234 ms 69448 KB Output is correct
39 Correct 157 ms 68168 KB Output is correct
40 Correct 257 ms 64072 KB Output is correct
41 Correct 258 ms 68424 KB Output is correct
42 Correct 5 ms 25680 KB Output is correct
43 Correct 402 ms 69016 KB Output is correct
44 Correct 369 ms 76616 KB Output is correct
45 Correct 416 ms 84040 KB Output is correct
46 Correct 469 ms 94820 KB Output is correct
47 Correct 432 ms 80712 KB Output is correct
48 Correct 290 ms 69380 KB Output is correct
49 Correct 127 ms 63496 KB Output is correct
50 Correct 209 ms 54856 KB Output is correct
51 Correct 382 ms 98888 KB Output is correct
52 Correct 220 ms 68224 KB Output is correct
53 Correct 4 ms 25680 KB Output is correct
54 Correct 4 ms 25692 KB Output is correct
55 Correct 4 ms 25680 KB Output is correct
56 Correct 6 ms 25936 KB Output is correct
57 Correct 6 ms 25936 KB Output is correct
58 Correct 7 ms 25936 KB Output is correct
59 Correct 6 ms 25936 KB Output is correct
60 Correct 5 ms 25968 KB Output is correct
61 Correct 5 ms 26104 KB Output is correct
62 Correct 6 ms 26228 KB Output is correct
63 Correct 6 ms 26192 KB Output is correct
64 Correct 5 ms 26192 KB Output is correct
65 Correct 5 ms 25936 KB Output is correct
66 Correct 6 ms 25916 KB Output is correct
67 Correct 198 ms 68424 KB Output is correct
68 Correct 233 ms 67912 KB Output is correct
69 Correct 282 ms 77604 KB Output is correct
70 Correct 311 ms 80520 KB Output is correct
71 Correct 353 ms 79832 KB Output is correct
72 Correct 294 ms 69308 KB Output is correct
73 Correct 302 ms 87740 KB Output is correct
74 Correct 253 ms 62148 KB Output is correct
75 Correct 346 ms 68436 KB Output is correct
76 Correct 271 ms 65068 KB Output is correct
77 Correct 214 ms 67912 KB Output is correct
78 Correct 243 ms 67912 KB Output is correct
79 Correct 242 ms 69448 KB Output is correct
80 Correct 157 ms 68168 KB Output is correct
81 Correct 394 ms 88152 KB Output is correct
82 Correct 400 ms 88100 KB Output is correct
83 Correct 245 ms 69448 KB Output is correct
84 Correct 187 ms 67912 KB Output is correct
85 Correct 338 ms 87632 KB Output is correct
86 Correct 237 ms 69464 KB Output is correct
87 Correct 213 ms 69452 KB Output is correct
88 Correct 215 ms 64072 KB Output is correct
89 Correct 228 ms 68424 KB Output is correct
90 Correct 334 ms 73584 KB Output is correct
91 Correct 326 ms 76528 KB Output is correct
92 Correct 385 ms 84040 KB Output is correct
93 Correct 455 ms 94900 KB Output is correct
94 Correct 400 ms 80520 KB Output is correct
95 Correct 329 ms 69384 KB Output is correct
96 Correct 146 ms 63596 KB Output is correct
97 Correct 237 ms 54884 KB Output is correct
98 Correct 441 ms 99144 KB Output is correct
99 Correct 249 ms 68168 KB Output is correct
100 Correct 199 ms 46608 KB Output is correct
101 Correct 474 ms 77896 KB Output is correct
102 Correct 353 ms 69960 KB Output is correct
103 Correct 330 ms 64584 KB Output is correct
104 Correct 358 ms 70472 KB Output is correct