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Submission #937429

# Submission time Handle Problem Language Result Execution time Memory
937429 2024-03-04T03:47:32 Z weakweakweak Stranded Far From Home (BOI22_island) C++14
100 / 100
 175 ms 43680 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
int n, m, s[201000], fa[201000], sz[201000], vis[201000] = {0}, ans[201000], dead[201000] = {0};
ll w[201000];
vector <int> e[201000], ne[201000];

int find (int x) {return fa[x] == x? x : fa[x] = find(fa[x]);}

void dfs(int i) {
    ans[i] = !dead[i];
    for (int j : ne[i]) {
        dead[j] |= dead[i];
        dfs(j);
    }
return;}

int main () {
    //輸入、建圖
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        cin >> s[i];
        fa[i] = i, w[i] = s[i], sz[i] = 1;
    }
    for (int i = 0, x, y; i < m; i++) {
        cin >> x >> y;
        e[x].push_back(y);e[y].push_back(x);
    }
    
    //做事
    vector<int> p;
    for (int i = 1; i <= n; i++) p.push_back(i);
    sort(p.begin(), p.end(), [&s](int & a, int & b){return s[a] < s[b];});
    for (int ii = 0; ii < n; ii++) {
        int i = p[ii];
        for (int j : e[i]) {
            if (!vis[j] or i == find(j)) continue;
            if (w[find(j)] < s[i]) dead[find(j)] = 1;
            ne[i].push_back(find(j));
            w[i] += w[find(j)];
            fa[find(j)] = i;
        }
        vis[i] = 1;
    }

    //從根往下跑
    int rt = find(1);
    dfs(rt);

    //輸出
    for (int i = 1; i <= n; i++) cout << ans[i];
    cout << '\n';
return 0;}

Compilation message

island.cpp: In function 'int main()':
island.cpp:35:32: warning: capture of variable 's' with non-automatic storage duration
   35 |     sort(p.begin(), p.end(), [&s](int & a, int & b){return s[a] < s[b];});
      |                                ^
island.cpp:5:11: note: 'int s [201000]' declared here
    5 | int n, m, s[201000], fa[201000], sz[201000], vis[201000] = {0}, ans[201000], dead[201000] = {0};
      |           ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14936 KB Output is correct
2 Correct 4 ms 14940 KB Output is correct
3 Correct 2 ms 12892 KB Output is correct
4 Correct 4 ms 15008 KB Output is correct
5 Correct 4 ms 14940 KB Output is correct
6 Correct 4 ms 15160 KB Output is correct
7 Correct 4 ms 14940 KB Output is correct
8 Correct 4 ms 15004 KB Output is correct
9 Correct 4 ms 15196 KB Output is correct
10 Correct 4 ms 14968 KB Output is correct
11 Correct 4 ms 14940 KB Output is correct
12 Correct 4 ms 15004 KB Output is correct
13 Correct 4 ms 14940 KB Output is correct
14 Correct 3 ms 14940 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 14996 KB Output is correct
2 Correct 2 ms 12892 KB Output is correct
3 Correct 95 ms 35860 KB Output is correct
4 Correct 104 ms 31944 KB Output is correct
5 Correct 129 ms 31176 KB Output is correct
6 Correct 123 ms 31748 KB Output is correct
7 Correct 108 ms 31660 KB Output is correct
8 Correct 111 ms 32972 KB Output is correct
9 Correct 89 ms 30676 KB Output is correct
10 Correct 86 ms 28996 KB Output is correct
11 Correct 71 ms 28736 KB Output is correct
12 Correct 112 ms 30416 KB Output is correct
13 Correct 86 ms 32152 KB Output is correct
14 Correct 117 ms 32248 KB Output is correct
15 Correct 105 ms 43680 KB Output is correct
16 Correct 77 ms 42444 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 131 ms 31712 KB Output is correct
3 Correct 175 ms 32312 KB Output is correct
4 Correct 96 ms 33728 KB Output is correct
5 Correct 88 ms 32188 KB Output is correct
6 Correct 143 ms 31828 KB Output is correct
7 Correct 156 ms 43536 KB Output is correct
8 Correct 115 ms 43464 KB Output is correct
9 Correct 77 ms 42444 KB Output is correct
10 Correct 94 ms 30168 KB Output is correct
11 Correct 111 ms 30392 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 143 ms 32264 KB Output is correct
3 Correct 131 ms 31936 KB Output is correct
4 Correct 132 ms 31952 KB Output is correct
5 Correct 116 ms 31948 KB Output is correct
6 Correct 109 ms 32448 KB Output is correct
7 Correct 79 ms 31600 KB Output is correct
8 Correct 86 ms 37512 KB Output is correct
9 Correct 81 ms 25356 KB Output is correct
10 Correct 126 ms 30224 KB Output is correct
11 Correct 105 ms 30484 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14936 KB Output is correct
2 Correct 4 ms 14940 KB Output is correct
3 Correct 2 ms 12892 KB Output is correct
4 Correct 4 ms 15008 KB Output is correct
5 Correct 4 ms 14940 KB Output is correct
6 Correct 4 ms 15160 KB Output is correct
7 Correct 4 ms 14940 KB Output is correct
8 Correct 4 ms 15004 KB Output is correct
9 Correct 4 ms 15196 KB Output is correct
10 Correct 4 ms 14968 KB Output is correct
11 Correct 4 ms 14940 KB Output is correct
12 Correct 4 ms 15004 KB Output is correct
13 Correct 4 ms 14940 KB Output is correct
14 Correct 3 ms 14940 KB Output is correct
15 Correct 4 ms 14996 KB Output is correct
16 Correct 2 ms 12892 KB Output is correct
17 Correct 95 ms 35860 KB Output is correct
18 Correct 104 ms 31944 KB Output is correct
19 Correct 129 ms 31176 KB Output is correct
20 Correct 123 ms 31748 KB Output is correct
21 Correct 108 ms 31660 KB Output is correct
22 Correct 111 ms 32972 KB Output is correct
23 Correct 89 ms 30676 KB Output is correct
24 Correct 86 ms 28996 KB Output is correct
25 Correct 71 ms 28736 KB Output is correct
26 Correct 112 ms 30416 KB Output is correct
27 Correct 86 ms 32152 KB Output is correct
28 Correct 117 ms 32248 KB Output is correct
29 Correct 105 ms 43680 KB Output is correct
30 Correct 77 ms 42444 KB Output is correct
31 Correct 2 ms 12892 KB Output is correct
32 Correct 131 ms 31712 KB Output is correct
33 Correct 175 ms 32312 KB Output is correct
34 Correct 96 ms 33728 KB Output is correct
35 Correct 88 ms 32188 KB Output is correct
36 Correct 143 ms 31828 KB Output is correct
37 Correct 156 ms 43536 KB Output is correct
38 Correct 115 ms 43464 KB Output is correct
39 Correct 77 ms 42444 KB Output is correct
40 Correct 94 ms 30168 KB Output is correct
41 Correct 111 ms 30392 KB Output is correct
42 Correct 2 ms 12892 KB Output is correct
43 Correct 143 ms 32264 KB Output is correct
44 Correct 131 ms 31936 KB Output is correct
45 Correct 132 ms 31952 KB Output is correct
46 Correct 116 ms 31948 KB Output is correct
47 Correct 109 ms 32448 KB Output is correct
48 Correct 79 ms 31600 KB Output is correct
49 Correct 86 ms 37512 KB Output is correct
50 Correct 81 ms 25356 KB Output is correct
51 Correct 126 ms 30224 KB Output is correct
52 Correct 105 ms 30484 KB Output is correct
53 Correct 3 ms 14936 KB Output is correct
54 Correct 3 ms 14940 KB Output is correct
55 Correct 4 ms 12892 KB Output is correct
56 Correct 4 ms 15044 KB Output is correct
57 Correct 4 ms 14940 KB Output is correct
58 Correct 3 ms 14940 KB Output is correct
59 Correct 4 ms 14940 KB Output is correct
60 Correct 4 ms 14936 KB Output is correct
61 Correct 3 ms 15196 KB Output is correct
62 Correct 4 ms 14940 KB Output is correct
63 Correct 5 ms 14936 KB Output is correct
64 Correct 4 ms 14936 KB Output is correct
65 Correct 4 ms 14940 KB Output is correct
66 Correct 3 ms 14936 KB Output is correct
67 Correct 94 ms 35892 KB Output is correct
68 Correct 94 ms 31944 KB Output is correct
69 Correct 105 ms 31144 KB Output is correct
70 Correct 113 ms 31684 KB Output is correct
71 Correct 113 ms 31796 KB Output is correct
72 Correct 110 ms 32944 KB Output is correct
73 Correct 96 ms 30664 KB Output is correct
74 Correct 78 ms 28960 KB Output is correct
75 Correct 70 ms 28744 KB Output is correct
76 Correct 117 ms 30416 KB Output is correct
77 Correct 103 ms 32200 KB Output is correct
78 Correct 87 ms 32200 KB Output is correct
79 Correct 108 ms 43464 KB Output is correct
80 Correct 83 ms 42700 KB Output is correct
81 Correct 137 ms 31944 KB Output is correct
82 Correct 134 ms 31860 KB Output is correct
83 Correct 106 ms 33640 KB Output is correct
84 Correct 90 ms 32720 KB Output is correct
85 Correct 130 ms 31940 KB Output is correct
86 Correct 119 ms 43556 KB Output is correct
87 Correct 122 ms 43460 KB Output is correct
88 Correct 123 ms 30348 KB Output is correct
89 Correct 118 ms 30556 KB Output is correct
90 Correct 132 ms 32400 KB Output is correct
91 Correct 135 ms 31940 KB Output is correct
92 Correct 133 ms 31948 KB Output is correct
93 Correct 112 ms 31948 KB Output is correct
94 Correct 120 ms 32452 KB Output is correct
95 Correct 79 ms 31692 KB Output is correct
96 Correct 83 ms 37368 KB Output is correct
97 Correct 72 ms 25288 KB Output is correct
98 Correct 107 ms 30412 KB Output is correct
99 Correct 102 ms 30416 KB Output is correct
100 Correct 33 ms 19284 KB Output is correct
101 Correct 155 ms 31948 KB Output is correct
102 Correct 97 ms 31688 KB Output is correct
103 Correct 134 ms 32424 KB Output is correct
104 Correct 157 ms 32480 KB Output is correct