oj.uz

Submission #1054542

# Submission time Handle Problem Language Result Execution time Memory
1054542 2024-08-12T10:34:41 Z Adomas08 Palembang Bridges (APIO15_bridge) C++14
63 / 100
 2000 ms 9208 KB 
    #include <bits/stdc++.h>

    using namespace std;
    int k, n;
    bool sorting(pair <int, int> a, pair <int, int> b){
    return a.first + a.second < b.first + b.second;
    }
    int findmedian(vector<pair<int, int>> j){
    vector <int> d;
    for (int i = 0; i < j.size(); i++){
        d.push_back(j[i].first);
        d.push_back(j[i].second);
    }
    d.erase(remove(d.begin(), d.end(), -1), d.end());
    sort (d.begin(), d.end());
    if (d.size() == 0) return 0;
    return (d[d.size() / 2] + d[d.size() / 2 - 1]) / 2;
    }
    int main(){
    long long ans = 0;
    priority_queue <int> q;
    int k, n;
    cin >> k >> n;
    long long a[n*2];
    vector <int> z;
    vector <pair<int,int>> v;
    char b[n], d[n];
    for (int i = 0; i < n; i++){
        cin >> b[i] >> a[i*2] >> d[i] >> a[i*2+1];
        if (b[i] == d[i]){
            v.push_back({-1, -1});
            z.push_back(-1);
            z.push_back(-1);
        }
        else {
            v.push_back({a[i*2], a[i*2+1]});
            z.push_back(a[i*2]);
            z.push_back(a[i*2+1]);
        }
        if (a[i*2] > a[i*2+1]){
            swap(a[i*2], a[i*2+1]);
        }
    }
    int f;
    if (k == 1){
    while (k--){
        f = findmedian(v);
        for (int i = 0; i < n; i++){
            if (f >= a[i*2] && f <= a[i*2+1]){
                v[i].first = -1;
                v[i].second = -1;
            }
        }
    }
    for (int i = 0; i < n; i++){
        if (b[i] == d[i]){
            ans += a[i*2+1] - a[i*2];
        }
        else{
            if (v[i].first == -1){
                ans += a[i*2+1] - a[i*2] + 1;
            }
            else{
                if (f < a[i*2]) ans += 1 + a[i*2+1] - a[i*2] + 2 * (a[i*2] - f);
                if (f > a[i*2+1]) ans += 1 + a[i*2+1] - a[i*2] + 2 * (f - a[i*2+1]);
            }
        }
    }
    }
    else{
        ans = LLONG_MAX;
        for (int N = 1; N <= n; N++){
        vector <int> h = z;
        sort(v.begin(), v.end(), sorting);
        long long curans = 0;
        vector <pair<int, int>> start(v.begin(), v.begin() + N);
        vector <pair<int, int>> ends(v.begin() + N, v.end());
        int f = findmedian(start);
        for (int i = 0; i < n; i++){
            if (f >= a[i*2] && f <= a[i*2+1]){
                h[i*2] = -1;
                h[i*2+1] = -1;
            }
        }
        int g = findmedian(ends);
        for (int i = 0; i < n; i++){
            if (g >= a[i*2] && g <= a[i*2+1]){
                h[i*2] = -1;
                h[i*2+1] = -1;
            }
        }
        for (int i = 0; i < n; i++){
        if (b[i] == d[i]){
            curans += a[i*2+1] - a[i*2];
        }
        else{
            if (h[i*2] == -1){
                curans += a[i*2+1] - a[i*2] + 1;
            }
            else{
                long long c = LLONG_MAX;
                if (f < a[i*2])  c = min(1 + a[i*2+1] - a[i*2] + 2 * (a[i*2] - f), c);
                if (f > a[i*2+1]) c = min(1 + a[i*2+1] - a[i*2] + 2 * (f - a[i*2+1]), c);
                if (g < a[i*2]) c = min(1 + a[i*2+1] - a[i*2] + 2 * (a[i*2] - g), c);
                if (g > a[i*2+1]) c = min(1 + a[i*2+1] - a[i*2] + 2 * (g - a[i*2+1]), c);
                if (c == LLONG_MAX){
                }
                curans += c;
            }
        }
    }
    ans = min(curans, ans);
        }
    }
    cout << ans;
    }

Compilation message

bridge.cpp: In function 'int findmedian(std::vector<std::pair<int, int> >)':
bridge.cpp:10:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     for (int i = 0; i < j.size(); i++){
      |                     ~~^~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 28 ms 6648 KB Output is correct
13 Correct 60 ms 7656 KB Output is correct
14 Correct 38 ms 6588 KB Output is correct
15 Correct 37 ms 4648 KB Output is correct
16 Correct 41 ms 7360 KB Output is correct
17 Correct 52 ms 7624 KB Output is correct
18 Correct 50 ms 7612 KB Output is correct
19 Correct 61 ms 7876 KB Output is correct
20 Correct 45 ms 7608 KB Output is correct
21 Correct 54 ms 7868 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 432 KB Output is correct
13 Correct 42 ms 348 KB Output is correct
14 Correct 77 ms 512 KB Output is correct
15 Correct 91 ms 492 KB Output is correct
16 Correct 4 ms 348 KB Output is correct
17 Correct 23 ms 344 KB Output is correct
18 Correct 12 ms 532 KB Output is correct
19 Correct 38 ms 604 KB Output is correct
20 Correct 46 ms 344 KB Output is correct
21 Correct 72 ms 528 KB Output is correct
22 Correct 57 ms 576 KB Output is correct
23 Correct 65 ms 344 KB Output is correct
24 Correct 43 ms 348 KB Output is correct

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 504 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 372 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 39 ms 556 KB Output is correct
14 Correct 95 ms 348 KB Output is correct
15 Correct 95 ms 572 KB Output is correct
16 Correct 5 ms 604 KB Output is correct
17 Correct 37 ms 496 KB Output is correct
18 Correct 12 ms 348 KB Output is correct
19 Correct 43 ms 568 KB Output is correct
20 Correct 78 ms 348 KB Output is correct
21 Correct 81 ms 568 KB Output is correct
22 Correct 45 ms 584 KB Output is correct
23 Correct 42 ms 568 KB Output is correct
24 Correct 45 ms 568 KB Output is correct
25 Execution timed out 2070 ms 9208 KB Time limit exceeded
26 Halted 0 ms 0 KB -