oj.uz

Submission #544952

# Submission time Handle Problem Language Result Execution time Memory
544952 2022-04-03T08:16:04 Z PiejanVDC Reconstruction Project (JOI22_reconstruction) C++17
7 / 100
 5000 ms 4032 KB 
#include <bits/stdc++.h>
using namespace std;

#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")

const int mxN = (int)1e5 + 5;

vector<pair<int64_t,pair<int,int>>>e;
vector<pair<int64_t,pair<int,int>>>v;

int n,m;

vector<int>parent(mxN);

int UF(int u) {
    if(parent[u] == u)
        return u;
    return parent[u] = UF(parent[u]);
}

int64_t mst(int64_t X) {
    for(int i = 0 ; i < m ; i++)
        v[i].first = abs(e[i].first - X), v[i].second = e[i].second;
    sort(v.begin(),v.end());
    int cnt = 0;
    int p = 0;
    int64_t ans = 0;
    vector<bool>vis(n,0);
    while(cnt < n-1) {
        int A = UF(v[p].second.first),
            B = UF(v[p].second.second);
        if(A == B) {
            p++;
            continue;
        }
        ans += v[p].first;
        cnt++;
        parent[A] = B;
        p++;
    }
    return ans;
}

void go() {
    for(int i = 0 ; i < n ; i++)
        parent[i] = i;
}

signed main() {
    cin>>n>>m;
    for(int i = 0 ; i < m ; i++) {
        int64_t a,b,c; cin>>a>>b>>c;
        a--,b--;
        e.push_back({c,{a,b}});
    }
    v.resize(m);
    int q; cin>>q;
    while(q--) {
        int64_t X; cin>>X;
        go();
        cout << mst(X) << "\n";
    }
    return 0;
}

Compilation message

reconstruction.cpp:5: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    5 | #pragma GCC optimization ("O3")
      | 
reconstruction.cpp:6: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    6 | #pragma GCC optimization ("unroll-loops")
      |

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 596 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 1 ms 596 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 1 ms 596 KB Output is correct
18 Correct 1 ms 596 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 596 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 1 ms 596 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 1 ms 596 KB Output is correct
18 Correct 1 ms 596 KB Output is correct
19 Correct 1 ms 596 KB Output is correct
20 Correct 168 ms 3828 KB Output is correct
21 Correct 181 ms 3948 KB Output is correct
22 Correct 151 ms 3944 KB Output is correct
23 Correct 161 ms 3944 KB Output is correct
24 Correct 159 ms 3908 KB Output is correct
25 Correct 165 ms 3992 KB Output is correct
26 Correct 153 ms 3944 KB Output is correct
27 Correct 157 ms 3984 KB Output is correct
28 Correct 203 ms 4032 KB Output is correct
29 Correct 211 ms 3956 KB Output is correct
30 Correct 153 ms 3952 KB Output is correct
31 Correct 159 ms 3868 KB Output is correct
32 Correct 189 ms 3868 KB Output is correct
33 Correct 184 ms 3848 KB Output is correct
34 Correct 184 ms 3860 KB Output is correct
35 Correct 158 ms 3872 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Execution timed out 5048 ms 3948 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 596 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 1 ms 596 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 1 ms 596 KB Output is correct
18 Correct 1 ms 596 KB Output is correct
19 Correct 1 ms 596 KB Output is correct
20 Execution timed out 5045 ms 2128 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 596 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 1 ms 596 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 1 ms 596 KB Output is correct
18 Correct 1 ms 596 KB Output is correct
19 Correct 1 ms 596 KB Output is correct
20 Correct 168 ms 3828 KB Output is correct
21 Correct 181 ms 3948 KB Output is correct
22 Correct 151 ms 3944 KB Output is correct
23 Correct 161 ms 3944 KB Output is correct
24 Correct 159 ms 3908 KB Output is correct
25 Correct 165 ms 3992 KB Output is correct
26 Correct 153 ms 3944 KB Output is correct
27 Correct 157 ms 3984 KB Output is correct
28 Correct 203 ms 4032 KB Output is correct
29 Correct 211 ms 3956 KB Output is correct
30 Correct 153 ms 3952 KB Output is correct
31 Correct 159 ms 3868 KB Output is correct
32 Correct 189 ms 3868 KB Output is correct
33 Correct 184 ms 3848 KB Output is correct
34 Correct 184 ms 3860 KB Output is correct
35 Correct 158 ms 3872 KB Output is correct
36 Execution timed out 5028 ms 3948 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 596 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 1 ms 596 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 1 ms 596 KB Output is correct
18 Correct 1 ms 596 KB Output is correct
19 Correct 1 ms 596 KB Output is correct
20 Correct 168 ms 3828 KB Output is correct
21 Correct 181 ms 3948 KB Output is correct
22 Correct 151 ms 3944 KB Output is correct
23 Correct 161 ms 3944 KB Output is correct
24 Correct 159 ms 3908 KB Output is correct
25 Correct 165 ms 3992 KB Output is correct
26 Correct 153 ms 3944 KB Output is correct
27 Correct 157 ms 3984 KB Output is correct
28 Correct 203 ms 4032 KB Output is correct
29 Correct 211 ms 3956 KB Output is correct
30 Correct 153 ms 3952 KB Output is correct
31 Correct 159 ms 3868 KB Output is correct
32 Correct 189 ms 3868 KB Output is correct
33 Correct 184 ms 3848 KB Output is correct
34 Correct 184 ms 3860 KB Output is correct
35 Correct 158 ms 3872 KB Output is correct
36 Correct 1 ms 596 KB Output is correct
37 Correct 1 ms 596 KB Output is correct
38 Correct 1 ms 596 KB Output is correct
39 Execution timed out 5048 ms 3948 KB Time limit exceeded
40 Halted 0 ms 0 KB -