oj.uz

Submission #796185

# Submission time Handle Problem Language Result Execution time Memory
796185 2023-07-28T07:34:35 Z 이동현(#10071) Security Guard (JOI23_guard) C++17
37 / 100
 165 ms 19800 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#define int long long
using namespace std;

const int NS = (int)2e5 + 4;
int n, m, q;
int a[NS], srt[NS], chk[NS];
vector<int> way[NS];

struct Dsu{
    int n;
    vector<int> pr;
    Dsu(int m){
        n = m + 4;
        pr.resize(n);
        iota(pr.begin(), pr.end(), 0);
    }

    int fd(int x){
        return (x == pr[x] ? x : pr[x] = fd(pr[x]));
    }

    bool unite(int x, int y){
        x = fd(x), y = fd(y);
        if(x == y){
            return false;
        }
        pr[y] = x;
        return true;
    }
};

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    cin >> n >> m >> q;
    int ans = 0;
    for(int i = 1; i <= n; ++i){
        cin >> a[i];
    }
    for(int i = 1; i <= m; ++i){
        int x, y;
        cin >> x >> y;
        way[x].push_back(y);
        way[y].push_back(x);
        // ans += min(a[x], a[y]);
    }

    iota(srt, srt + NS, 0);
    sort(srt + 1, srt + n + 1, [&](int x, int y){return a[x] < a[y];});

    Dsu uni(n + 4);

    int gr = 0;
    for(int i = 1; i <= n; ++i){
        int now = srt[i];
        
        ++gr;
        chk[now] = 1;
        for(auto&nxt:way[now]){
            if(chk[nxt]){
                int rv = uni.unite(now, nxt);
                gr -= rv;
                if(rv) ans += min(a[now], a[nxt]);

                // cout << now << ' ' << nxt << endl;
            }
        }

        // cout << now << ' ' << gr << endl;

        if(i < n) ans += gr * (a[srt[i + 1]] - a[srt[i]]);
    }

    cout << ans << '\n';
    
    return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6612 KB Output is correct
2 Correct 62 ms 17480 KB Output is correct
3 Correct 58 ms 17444 KB Output is correct
4 Correct 64 ms 17480 KB Output is correct
5 Correct 66 ms 17476 KB Output is correct
6 Correct 84 ms 17420 KB Output is correct
7 Correct 66 ms 17508 KB Output is correct
8 Correct 3 ms 6484 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6612 KB Output is correct
2 Correct 62 ms 17480 KB Output is correct
3 Correct 58 ms 17444 KB Output is correct
4 Correct 64 ms 17480 KB Output is correct
5 Correct 66 ms 17476 KB Output is correct
6 Correct 84 ms 17420 KB Output is correct
7 Correct 66 ms 17508 KB Output is correct
8 Correct 3 ms 6484 KB Output is correct
9 Correct 4 ms 6484 KB Output is correct
10 Correct 122 ms 17476 KB Output is correct
11 Correct 72 ms 17440 KB Output is correct
12 Correct 67 ms 17480 KB Output is correct
13 Correct 67 ms 17476 KB Output is correct
14 Correct 124 ms 17508 KB Output is correct
15 Correct 106 ms 17456 KB Output is correct
16 Correct 103 ms 17544 KB Output is correct
17 Correct 102 ms 17424 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6612 KB Output is correct
2 Correct 62 ms 17480 KB Output is correct
3 Correct 58 ms 17444 KB Output is correct
4 Correct 64 ms 17480 KB Output is correct
5 Correct 66 ms 17476 KB Output is correct
6 Correct 84 ms 17420 KB Output is correct
7 Correct 66 ms 17508 KB Output is correct
8 Correct 3 ms 6484 KB Output is correct
9 Correct 4 ms 6484 KB Output is correct
10 Correct 122 ms 17476 KB Output is correct
11 Correct 72 ms 17440 KB Output is correct
12 Correct 67 ms 17480 KB Output is correct
13 Correct 67 ms 17476 KB Output is correct
14 Correct 124 ms 17508 KB Output is correct
15 Correct 106 ms 17456 KB Output is correct
16 Correct 103 ms 17544 KB Output is correct
17 Correct 102 ms 17424 KB Output is correct
18 Correct 3 ms 6484 KB Output is correct
19 Correct 152 ms 18520 KB Output is correct
20 Correct 136 ms 18556 KB Output is correct
21 Correct 130 ms 18452 KB Output is correct
22 Correct 149 ms 18720 KB Output is correct
23 Correct 105 ms 19260 KB Output is correct
24 Correct 109 ms 19532 KB Output is correct
25 Correct 109 ms 19080 KB Output is correct
26 Correct 102 ms 19020 KB Output is correct
27 Correct 96 ms 19060 KB Output is correct
28 Correct 121 ms 17856 KB Output is correct
29 Correct 139 ms 18232 KB Output is correct
30 Correct 143 ms 18936 KB Output is correct
31 Correct 115 ms 19020 KB Output is correct
32 Correct 137 ms 19064 KB Output is correct
33 Correct 115 ms 19800 KB Output is correct
34 Correct 116 ms 18612 KB Output is correct
35 Correct 163 ms 19648 KB Output is correct
36 Correct 94 ms 19596 KB Output is correct
37 Correct 104 ms 19580 KB Output is correct
38 Correct 119 ms 19432 KB Output is correct
39 Correct 100 ms 19424 KB Output is correct
40 Correct 122 ms 19272 KB Output is correct
41 Correct 146 ms 17520 KB Output is correct
42 Correct 136 ms 17460 KB Output is correct
43 Correct 140 ms 18684 KB Output is correct
44 Correct 122 ms 18636 KB Output is correct
45 Correct 110 ms 18692 KB Output is correct
46 Correct 120 ms 18696 KB Output is correct
47 Correct 130 ms 18704 KB Output is correct
48 Correct 140 ms 18700 KB Output is correct
49 Correct 137 ms 18696 KB Output is correct
50 Correct 117 ms 18732 KB Output is correct
51 Correct 96 ms 18688 KB Output is correct
52 Correct 103 ms 18704 KB Output is correct

Subtask #4
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6612 KB Output is correct
2 Correct 62 ms 17480 KB Output is correct
3 Correct 58 ms 17444 KB Output is correct
4 Correct 64 ms 17480 KB Output is correct
5 Correct 66 ms 17476 KB Output is correct
6 Correct 84 ms 17420 KB Output is correct
7 Correct 66 ms 17508 KB Output is correct
8 Correct 3 ms 6484 KB Output is correct
9 Correct 4 ms 6484 KB Output is correct
10 Correct 122 ms 17476 KB Output is correct
11 Correct 72 ms 17440 KB Output is correct
12 Correct 67 ms 17480 KB Output is correct
13 Correct 67 ms 17476 KB Output is correct
14 Correct 124 ms 17508 KB Output is correct
15 Correct 106 ms 17456 KB Output is correct
16 Correct 103 ms 17544 KB Output is correct
17 Correct 102 ms 17424 KB Output is correct
18 Correct 3 ms 6484 KB Output is correct
19 Correct 152 ms 18520 KB Output is correct
20 Correct 136 ms 18556 KB Output is correct
21 Correct 130 ms 18452 KB Output is correct
22 Correct 149 ms 18720 KB Output is correct
23 Correct 105 ms 19260 KB Output is correct
24 Correct 109 ms 19532 KB Output is correct
25 Correct 109 ms 19080 KB Output is correct
26 Correct 102 ms 19020 KB Output is correct
27 Correct 96 ms 19060 KB Output is correct
28 Correct 121 ms 17856 KB Output is correct
29 Correct 139 ms 18232 KB Output is correct
30 Correct 143 ms 18936 KB Output is correct
31 Correct 115 ms 19020 KB Output is correct
32 Correct 137 ms 19064 KB Output is correct
33 Correct 115 ms 19800 KB Output is correct
34 Correct 116 ms 18612 KB Output is correct
35 Correct 163 ms 19648 KB Output is correct
36 Correct 94 ms 19596 KB Output is correct
37 Correct 104 ms 19580 KB Output is correct
38 Correct 119 ms 19432 KB Output is correct
39 Correct 100 ms 19424 KB Output is correct
40 Correct 122 ms 19272 KB Output is correct
41 Correct 146 ms 17520 KB Output is correct
42 Correct 136 ms 17460 KB Output is correct
43 Correct 140 ms 18684 KB Output is correct
44 Correct 122 ms 18636 KB Output is correct
45 Correct 110 ms 18692 KB Output is correct
46 Correct 120 ms 18696 KB Output is correct
47 Correct 130 ms 18704 KB Output is correct
48 Correct 140 ms 18700 KB Output is correct
49 Correct 137 ms 18696 KB Output is correct
50 Correct 117 ms 18732 KB Output is correct
51 Correct 96 ms 18688 KB Output is correct
52 Correct 103 ms 18704 KB Output is correct
53 Correct 3 ms 6484 KB Output is correct
54 Incorrect 165 ms 18776 KB Output isn't correct
55 Halted 0 ms 0 KB -

Subtask #5
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Incorrect 3 ms 6484 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Incorrect 3 ms 6484 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6612 KB Output is correct
2 Correct 62 ms 17480 KB Output is correct
3 Correct 58 ms 17444 KB Output is correct
4 Correct 64 ms 17480 KB Output is correct
5 Correct 66 ms 17476 KB Output is correct
6 Correct 84 ms 17420 KB Output is correct
7 Correct 66 ms 17508 KB Output is correct
8 Correct 3 ms 6484 KB Output is correct
9 Correct 4 ms 6484 KB Output is correct
10 Correct 122 ms 17476 KB Output is correct
11 Correct 72 ms 17440 KB Output is correct
12 Correct 67 ms 17480 KB Output is correct
13 Correct 67 ms 17476 KB Output is correct
14 Correct 124 ms 17508 KB Output is correct
15 Correct 106 ms 17456 KB Output is correct
16 Correct 103 ms 17544 KB Output is correct
17 Correct 102 ms 17424 KB Output is correct
18 Correct 3 ms 6484 KB Output is correct
19 Correct 152 ms 18520 KB Output is correct
20 Correct 136 ms 18556 KB Output is correct
21 Correct 130 ms 18452 KB Output is correct
22 Correct 149 ms 18720 KB Output is correct
23 Correct 105 ms 19260 KB Output is correct
24 Correct 109 ms 19532 KB Output is correct
25 Correct 109 ms 19080 KB Output is correct
26 Correct 102 ms 19020 KB Output is correct
27 Correct 96 ms 19060 KB Output is correct
28 Correct 121 ms 17856 KB Output is correct
29 Correct 139 ms 18232 KB Output is correct
30 Correct 143 ms 18936 KB Output is correct
31 Correct 115 ms 19020 KB Output is correct
32 Correct 137 ms 19064 KB Output is correct
33 Correct 115 ms 19800 KB Output is correct
34 Correct 116 ms 18612 KB Output is correct
35 Correct 163 ms 19648 KB Output is correct
36 Correct 94 ms 19596 KB Output is correct
37 Correct 104 ms 19580 KB Output is correct
38 Correct 119 ms 19432 KB Output is correct
39 Correct 100 ms 19424 KB Output is correct
40 Correct 122 ms 19272 KB Output is correct
41 Correct 146 ms 17520 KB Output is correct
42 Correct 136 ms 17460 KB Output is correct
43 Correct 140 ms 18684 KB Output is correct
44 Correct 122 ms 18636 KB Output is correct
45 Correct 110 ms 18692 KB Output is correct
46 Correct 120 ms 18696 KB Output is correct
47 Correct 130 ms 18704 KB Output is correct
48 Correct 140 ms 18700 KB Output is correct
49 Correct 137 ms 18696 KB Output is correct
50 Correct 117 ms 18732 KB Output is correct
51 Correct 96 ms 18688 KB Output is correct
52 Correct 103 ms 18704 KB Output is correct
53 Correct 3 ms 6484 KB Output is correct
54 Incorrect 165 ms 18776 KB Output isn't correct
55 Halted 0 ms 0 KB -