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Submission #580207

# Submission time Handle Problem Language Result Execution time Memory
580207 2022-06-20T17:52:36 Z kamelfanger83 Stranded Far From Home (BOI22_island) C++17
100 / 100
 687 ms 76728 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <set>

#define int long long

using namespace std;

signed main(){
    int n, m; cin >> n >> m;
    vector<int> inh;
    vector<vector<int>> cons; cons.resize(n);
    int s;
    for (int reader = 0; reader < n; ++reader) {
        cin >> s;
        inh.push_back(s);
    }
    int a, b;
    for (int reader = 0; reader < m; ++reader) {
        cin >> a >> b; a--; b--;
        cons[a].push_back(b);
        cons[b].push_back(a);
    }

    //vector<bool> rall (n);????????????????
    vector<bool> poss; poss.resize(n, true);
    vector<int> group (n); for(int i = 0; i < n; i++) group[i] = i;
    vector<int> sum = inh;
    vector<set<int>> isin;isin.resize(n); for(int i = 0; i < n; i++) isin[i].insert(i);


    auto get = [&](int u){
        int s = u;
        while(group[u] != u) u = group[u];
        while(group[s] != s){
            int beg = group[s];
            group[s] = u;
            s = group[beg];
        }
        return u;
    };

    auto unite = [&](int u, int v){
        u = get(u); v = get(v);
        if (u==v) return;
        if(isin[u].size() < isin[v].size()) swap(u, v);
        group[v] = u;
        sum[u] += sum[v];
        for(int ins : isin[v]) isin[u].insert(ins);
    };

    vector<int> scanl (n); for (int i = 0; i < n; ++i) scanl[i] = i;

    auto compinh = [&](int r, int s) {return inh[r] < inh[s];};

    sort(scanl.begin(), scanl.end(), compinh);

    for (int scanner : scanl) {
        for(int c : cons[scanner]){
            if(inh[c] <= inh[scanner]){
                if(sum[get(c)] < inh[scanner]){
                    for(int killer : isin[get(c)]) poss[killer] = false;
                    isin[get(c)].clear();
                }
                unite(c, scanner);
            }
        }
    }

    for(bool printr : poss) cout << printr;

    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 3 ms 648 KB Output is correct
5 Correct 3 ms 724 KB Output is correct
6 Correct 3 ms 596 KB Output is correct
7 Correct 3 ms 596 KB Output is correct
8 Correct 3 ms 596 KB Output is correct
9 Correct 3 ms 724 KB Output is correct
10 Correct 3 ms 724 KB Output is correct
11 Correct 3 ms 732 KB Output is correct
12 Correct 3 ms 724 KB Output is correct
13 Correct 3 ms 852 KB Output is correct
14 Correct 3 ms 780 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 212 KB Output is correct
3 Correct 310 ms 43304 KB Output is correct
4 Correct 386 ms 74020 KB Output is correct
5 Correct 415 ms 52028 KB Output is correct
6 Correct 439 ms 54980 KB Output is correct
7 Correct 446 ms 54332 KB Output is correct
8 Correct 505 ms 62664 KB Output is correct
9 Correct 380 ms 64048 KB Output is correct
10 Correct 312 ms 38032 KB Output is correct
11 Correct 285 ms 47364 KB Output is correct
12 Correct 439 ms 50504 KB Output is correct
13 Correct 396 ms 75068 KB Output is correct
14 Correct 415 ms 72964 KB Output is correct
15 Correct 380 ms 45860 KB Output is correct
16 Correct 283 ms 45364 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 556 ms 60564 KB Output is correct
3 Correct 548 ms 60532 KB Output is correct
4 Correct 479 ms 75028 KB Output is correct
5 Correct 443 ms 74656 KB Output is correct
6 Correct 504 ms 60040 KB Output is correct
7 Correct 429 ms 45812 KB Output is correct
8 Correct 421 ms 45888 KB Output is correct
9 Correct 298 ms 45380 KB Output is correct
10 Correct 379 ms 50608 KB Output is correct
11 Correct 434 ms 63364 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 515 ms 47496 KB Output is correct
3 Correct 524 ms 51060 KB Output is correct
4 Correct 586 ms 58360 KB Output is correct
5 Correct 687 ms 72168 KB Output is correct
6 Correct 604 ms 58412 KB Output is correct
7 Correct 386 ms 47476 KB Output is correct
8 Correct 342 ms 56296 KB Output is correct
9 Correct 293 ms 24408 KB Output is correct
10 Correct 617 ms 76728 KB Output is correct
11 Correct 429 ms 64488 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 3 ms 648 KB Output is correct
5 Correct 3 ms 724 KB Output is correct
6 Correct 3 ms 596 KB Output is correct
7 Correct 3 ms 596 KB Output is correct
8 Correct 3 ms 596 KB Output is correct
9 Correct 3 ms 724 KB Output is correct
10 Correct 3 ms 724 KB Output is correct
11 Correct 3 ms 732 KB Output is correct
12 Correct 3 ms 724 KB Output is correct
13 Correct 3 ms 852 KB Output is correct
14 Correct 3 ms 780 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 310 ms 43304 KB Output is correct
18 Correct 386 ms 74020 KB Output is correct
19 Correct 415 ms 52028 KB Output is correct
20 Correct 439 ms 54980 KB Output is correct
21 Correct 446 ms 54332 KB Output is correct
22 Correct 505 ms 62664 KB Output is correct
23 Correct 380 ms 64048 KB Output is correct
24 Correct 312 ms 38032 KB Output is correct
25 Correct 285 ms 47364 KB Output is correct
26 Correct 439 ms 50504 KB Output is correct
27 Correct 396 ms 75068 KB Output is correct
28 Correct 415 ms 72964 KB Output is correct
29 Correct 380 ms 45860 KB Output is correct
30 Correct 283 ms 45364 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 556 ms 60564 KB Output is correct
33 Correct 548 ms 60532 KB Output is correct
34 Correct 479 ms 75028 KB Output is correct
35 Correct 443 ms 74656 KB Output is correct
36 Correct 504 ms 60040 KB Output is correct
37 Correct 429 ms 45812 KB Output is correct
38 Correct 421 ms 45888 KB Output is correct
39 Correct 298 ms 45380 KB Output is correct
40 Correct 379 ms 50608 KB Output is correct
41 Correct 434 ms 63364 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 515 ms 47496 KB Output is correct
44 Correct 524 ms 51060 KB Output is correct
45 Correct 586 ms 58360 KB Output is correct
46 Correct 687 ms 72168 KB Output is correct
47 Correct 604 ms 58412 KB Output is correct
48 Correct 386 ms 47476 KB Output is correct
49 Correct 342 ms 56296 KB Output is correct
50 Correct 293 ms 24408 KB Output is correct
51 Correct 617 ms 76728 KB Output is correct
52 Correct 429 ms 64488 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 0 ms 212 KB Output is correct
56 Correct 4 ms 668 KB Output is correct
57 Correct 3 ms 724 KB Output is correct
58 Correct 3 ms 596 KB Output is correct
59 Correct 3 ms 596 KB Output is correct
60 Correct 4 ms 500 KB Output is correct
61 Correct 3 ms 724 KB Output is correct
62 Correct 4 ms 776 KB Output is correct
63 Correct 3 ms 732 KB Output is correct
64 Correct 4 ms 724 KB Output is correct
65 Correct 4 ms 852 KB Output is correct
66 Correct 4 ms 724 KB Output is correct
67 Correct 392 ms 43196 KB Output is correct
68 Correct 475 ms 74012 KB Output is correct
69 Correct 563 ms 52108 KB Output is correct
70 Correct 516 ms 54908 KB Output is correct
71 Correct 540 ms 54384 KB Output is correct
72 Correct 580 ms 62676 KB Output is correct
73 Correct 411 ms 64024 KB Output is correct
74 Correct 317 ms 38004 KB Output is correct
75 Correct 289 ms 47488 KB Output is correct
76 Correct 429 ms 50488 KB Output is correct
77 Correct 415 ms 75040 KB Output is correct
78 Correct 426 ms 73008 KB Output is correct
79 Correct 338 ms 45924 KB Output is correct
80 Correct 289 ms 45372 KB Output is correct
81 Correct 525 ms 60592 KB Output is correct
82 Correct 479 ms 60556 KB Output is correct
83 Correct 450 ms 75156 KB Output is correct
84 Correct 379 ms 74712 KB Output is correct
85 Correct 461 ms 60096 KB Output is correct
86 Correct 355 ms 45860 KB Output is correct
87 Correct 416 ms 45888 KB Output is correct
88 Correct 338 ms 50800 KB Output is correct
89 Correct 388 ms 63356 KB Output is correct
90 Correct 487 ms 47504 KB Output is correct
91 Correct 475 ms 51136 KB Output is correct
92 Correct 506 ms 58428 KB Output is correct
93 Correct 583 ms 72204 KB Output is correct
94 Correct 524 ms 58428 KB Output is correct
95 Correct 331 ms 47472 KB Output is correct
96 Correct 287 ms 56264 KB Output is correct
97 Correct 264 ms 24364 KB Output is correct
98 Correct 546 ms 76712 KB Output is correct
99 Correct 388 ms 64604 KB Output is correct
100 Correct 107 ms 5196 KB Output is correct
101 Correct 494 ms 51880 KB Output is correct
102 Correct 416 ms 44896 KB Output is correct
103 Correct 414 ms 36412 KB Output is correct
104 Correct 469 ms 43884 KB Output is correct