oj.uz

Submission #796189

# Submission time Handle Problem Language Result Execution time Memory
796189 2023-07-28T07:40:23 Z 이동현(#10071) Security Guard (JOI23_guard) C++17
37 / 100
 204 ms 19904 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;
        sort(way[now].begin(), way[now].end(), [&](int x, int y){return a[x] < a[y];});
        for(auto&nxt:way[now]){
            if(chk[nxt]){
                int rv = uni.unite(now, nxt);
                gr -= rv;
                if(rv) ans += 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 6484 KB Output is correct
2 Correct 66 ms 17476 KB Output is correct
3 Correct 63 ms 17472 KB Output is correct
4 Correct 72 ms 17432 KB Output is correct
5 Correct 67 ms 17484 KB Output is correct
6 Correct 67 ms 17540 KB Output is correct
7 Correct 67 ms 17440 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 6484 KB Output is correct
2 Correct 66 ms 17476 KB Output is correct
3 Correct 63 ms 17472 KB Output is correct
4 Correct 72 ms 17432 KB Output is correct
5 Correct 67 ms 17484 KB Output is correct
6 Correct 67 ms 17540 KB Output is correct
7 Correct 67 ms 17440 KB Output is correct
8 Correct 3 ms 6484 KB Output is correct
9 Correct 3 ms 6484 KB Output is correct
10 Correct 108 ms 17472 KB Output is correct
11 Correct 73 ms 17496 KB Output is correct
12 Correct 75 ms 17468 KB Output is correct
13 Correct 73 ms 17520 KB Output is correct
14 Correct 106 ms 17508 KB Output is correct
15 Correct 105 ms 17412 KB Output is correct
16 Correct 113 ms 17528 KB Output is correct
17 Correct 104 ms 17472 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Correct 66 ms 17476 KB Output is correct
3 Correct 63 ms 17472 KB Output is correct
4 Correct 72 ms 17432 KB Output is correct
5 Correct 67 ms 17484 KB Output is correct
6 Correct 67 ms 17540 KB Output is correct
7 Correct 67 ms 17440 KB Output is correct
8 Correct 3 ms 6484 KB Output is correct
9 Correct 3 ms 6484 KB Output is correct
10 Correct 108 ms 17472 KB Output is correct
11 Correct 73 ms 17496 KB Output is correct
12 Correct 75 ms 17468 KB Output is correct
13 Correct 73 ms 17520 KB Output is correct
14 Correct 106 ms 17508 KB Output is correct
15 Correct 105 ms 17412 KB Output is correct
16 Correct 113 ms 17528 KB Output is correct
17 Correct 104 ms 17472 KB Output is correct
18 Correct 4 ms 6484 KB Output is correct
19 Correct 160 ms 18676 KB Output is correct
20 Correct 126 ms 18620 KB Output is correct
21 Correct 197 ms 18720 KB Output is correct
22 Correct 147 ms 18868 KB Output is correct
23 Correct 132 ms 19424 KB Output is correct
24 Correct 125 ms 19672 KB Output is correct
25 Correct 204 ms 19248 KB Output is correct
26 Correct 175 ms 19160 KB Output is correct
27 Correct 189 ms 19220 KB Output is correct
28 Correct 156 ms 17932 KB Output is correct
29 Correct 172 ms 18296 KB Output is correct
30 Correct 167 ms 19048 KB Output is correct
31 Correct 146 ms 19132 KB Output is correct
32 Correct 158 ms 19268 KB Output is correct
33 Correct 118 ms 19904 KB Output is correct
34 Correct 163 ms 18680 KB Output is correct
35 Correct 137 ms 19816 KB Output is correct
36 Correct 126 ms 19688 KB Output is correct
37 Correct 144 ms 19716 KB Output is correct
38 Correct 185 ms 19464 KB Output is correct
39 Correct 145 ms 19612 KB Output is correct
40 Correct 148 ms 19308 KB Output is correct
41 Correct 175 ms 17568 KB Output is correct
42 Correct 146 ms 17524 KB Output is correct
43 Correct 155 ms 18816 KB Output is correct
44 Correct 173 ms 18884 KB Output is correct
45 Correct 135 ms 18848 KB Output is correct
46 Correct 131 ms 18864 KB Output is correct
47 Correct 142 ms 18868 KB Output is correct
48 Correct 152 ms 18824 KB Output is correct
49 Correct 179 ms 18820 KB Output is correct
50 Correct 151 ms 18824 KB Output is correct
51 Correct 127 ms 18812 KB Output is correct
52 Correct 159 ms 18768 KB Output is correct

Subtask #4
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Correct 66 ms 17476 KB Output is correct
3 Correct 63 ms 17472 KB Output is correct
4 Correct 72 ms 17432 KB Output is correct
5 Correct 67 ms 17484 KB Output is correct
6 Correct 67 ms 17540 KB Output is correct
7 Correct 67 ms 17440 KB Output is correct
8 Correct 3 ms 6484 KB Output is correct
9 Correct 3 ms 6484 KB Output is correct
10 Correct 108 ms 17472 KB Output is correct
11 Correct 73 ms 17496 KB Output is correct
12 Correct 75 ms 17468 KB Output is correct
13 Correct 73 ms 17520 KB Output is correct
14 Correct 106 ms 17508 KB Output is correct
15 Correct 105 ms 17412 KB Output is correct
16 Correct 113 ms 17528 KB Output is correct
17 Correct 104 ms 17472 KB Output is correct
18 Correct 4 ms 6484 KB Output is correct
19 Correct 160 ms 18676 KB Output is correct
20 Correct 126 ms 18620 KB Output is correct
21 Correct 197 ms 18720 KB Output is correct
22 Correct 147 ms 18868 KB Output is correct
23 Correct 132 ms 19424 KB Output is correct
24 Correct 125 ms 19672 KB Output is correct
25 Correct 204 ms 19248 KB Output is correct
26 Correct 175 ms 19160 KB Output is correct
27 Correct 189 ms 19220 KB Output is correct
28 Correct 156 ms 17932 KB Output is correct
29 Correct 172 ms 18296 KB Output is correct
30 Correct 167 ms 19048 KB Output is correct
31 Correct 146 ms 19132 KB Output is correct
32 Correct 158 ms 19268 KB Output is correct
33 Correct 118 ms 19904 KB Output is correct
34 Correct 163 ms 18680 KB Output is correct
35 Correct 137 ms 19816 KB Output is correct
36 Correct 126 ms 19688 KB Output is correct
37 Correct 144 ms 19716 KB Output is correct
38 Correct 185 ms 19464 KB Output is correct
39 Correct 145 ms 19612 KB Output is correct
40 Correct 148 ms 19308 KB Output is correct
41 Correct 175 ms 17568 KB Output is correct
42 Correct 146 ms 17524 KB Output is correct
43 Correct 155 ms 18816 KB Output is correct
44 Correct 173 ms 18884 KB Output is correct
45 Correct 135 ms 18848 KB Output is correct
46 Correct 131 ms 18864 KB Output is correct
47 Correct 142 ms 18868 KB Output is correct
48 Correct 152 ms 18824 KB Output is correct
49 Correct 179 ms 18820 KB Output is correct
50 Correct 151 ms 18824 KB Output is correct
51 Correct 127 ms 18812 KB Output is correct
52 Correct 159 ms 18768 KB Output is correct
53 Correct 3 ms 6484 KB Output is correct
54 Incorrect 134 ms 18764 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 4 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 4 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 6484 KB Output is correct
2 Correct 66 ms 17476 KB Output is correct
3 Correct 63 ms 17472 KB Output is correct
4 Correct 72 ms 17432 KB Output is correct
5 Correct 67 ms 17484 KB Output is correct
6 Correct 67 ms 17540 KB Output is correct
7 Correct 67 ms 17440 KB Output is correct
8 Correct 3 ms 6484 KB Output is correct
9 Correct 3 ms 6484 KB Output is correct
10 Correct 108 ms 17472 KB Output is correct
11 Correct 73 ms 17496 KB Output is correct
12 Correct 75 ms 17468 KB Output is correct
13 Correct 73 ms 17520 KB Output is correct
14 Correct 106 ms 17508 KB Output is correct
15 Correct 105 ms 17412 KB Output is correct
16 Correct 113 ms 17528 KB Output is correct
17 Correct 104 ms 17472 KB Output is correct
18 Correct 4 ms 6484 KB Output is correct
19 Correct 160 ms 18676 KB Output is correct
20 Correct 126 ms 18620 KB Output is correct
21 Correct 197 ms 18720 KB Output is correct
22 Correct 147 ms 18868 KB Output is correct
23 Correct 132 ms 19424 KB Output is correct
24 Correct 125 ms 19672 KB Output is correct
25 Correct 204 ms 19248 KB Output is correct
26 Correct 175 ms 19160 KB Output is correct
27 Correct 189 ms 19220 KB Output is correct
28 Correct 156 ms 17932 KB Output is correct
29 Correct 172 ms 18296 KB Output is correct
30 Correct 167 ms 19048 KB Output is correct
31 Correct 146 ms 19132 KB Output is correct
32 Correct 158 ms 19268 KB Output is correct
33 Correct 118 ms 19904 KB Output is correct
34 Correct 163 ms 18680 KB Output is correct
35 Correct 137 ms 19816 KB Output is correct
36 Correct 126 ms 19688 KB Output is correct
37 Correct 144 ms 19716 KB Output is correct
38 Correct 185 ms 19464 KB Output is correct
39 Correct 145 ms 19612 KB Output is correct
40 Correct 148 ms 19308 KB Output is correct
41 Correct 175 ms 17568 KB Output is correct
42 Correct 146 ms 17524 KB Output is correct
43 Correct 155 ms 18816 KB Output is correct
44 Correct 173 ms 18884 KB Output is correct
45 Correct 135 ms 18848 KB Output is correct
46 Correct 131 ms 18864 KB Output is correct
47 Correct 142 ms 18868 KB Output is correct
48 Correct 152 ms 18824 KB Output is correct
49 Correct 179 ms 18820 KB Output is correct
50 Correct 151 ms 18824 KB Output is correct
51 Correct 127 ms 18812 KB Output is correct
52 Correct 159 ms 18768 KB Output is correct
53 Correct 3 ms 6484 KB Output is correct
54 Incorrect 134 ms 18764 KB Output isn't correct
55 Halted 0 ms 0 KB -