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Submission #1055073

# Submission time Handle Problem Language Result Execution time Memory
1055073 2024-08-12T14:27:33 Z Adomas08 Palembang Bridges (APIO15_bridge) C++14
63 / 100
 2000 ms 7268 KB 
        #include <bits/stdc++.h>

        using namespace std;
        int k, n;
        long long curans;
        vector <int> h;
        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, dans = 0;
        int k, n;
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cin >> k >> n;
        int 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 {
                dans++;
                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]);
            }
            dans += a[i*2+1] - a[i*2];
        }
        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;
            long long xans;
            int f, g, c;
            sort(v.begin(), v.end(), sorting);
            vector <pair<int, int>>start(v.begin(), v.begin() + 1);
            vector <pair<int, int>>ends(v.begin() + 1, v.end());
            for (int N = 1; N <= n; N++){
            h = z;
            curans = dans;
            if (N != 1){
                start.push_back(v[N-1]);
                ends.erase(ends.begin());
            }
            f = findmedian(start);
            g = findmedian(ends);
            for (int i = 0; i < n; i++){
                if ((f >= a[i*2] && f <= a[i*2+1]) || (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 (h[i*2] != -1){
                    if (f < a[i*2])  c = 2 * (a[i*2] - f);
                    else c = 2 * (f - a[i*2+1]);
                    if (g < a[i*2]) c = min(2 * (a[i*2] - g), c);
                    else c = min(2 * (g - a[i*2+1]), c);
                    curans += c;
                }
        }

        ans = min(curans, ans);
            }
        }
        cout << ans;
        }

Compilation message

bridge.cpp: In function 'int findmedian(std::vector<std::pair<int, int> >)':
bridge.cpp:12:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |         for (int i = 0; i < j.size(); i++){
      |                         ~~^~~~~~~~~~
bridge.cpp: In function 'int main()':
bridge.cpp:77:23: warning: unused variable 'xans' [-Wunused-variable]
   77 |             long long xans;
      |                       ^~~~

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 388 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# 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 344 KB Output is correct
4 Correct 0 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 16 ms 5180 KB Output is correct
13 Correct 26 ms 5320 KB Output is correct
14 Correct 19 ms 4804 KB Output is correct
15 Correct 15 ms 3024 KB Output is correct
16 Correct 15 ms 5336 KB Output is correct
17 Correct 18 ms 5308 KB Output is correct
18 Correct 21 ms 5316 KB Output is correct
19 Correct 25 ms 5320 KB Output is correct
20 Correct 18 ms 5320 KB Output is correct
21 Correct 22 ms 5256 KB Output is correct

Subtask #3
9.0 / 9.0

# 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 476 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 344 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 0 ms 348 KB Output is correct
12 Correct 0 ms 348 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 0 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 17 ms 556 KB Output is correct
14 Correct 57 ms 348 KB Output is correct
15 Correct 65 ms 348 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 17 ms 536 KB Output is correct
18 Correct 9 ms 344 KB Output is correct
19 Correct 19 ms 552 KB Output is correct
20 Correct 29 ms 344 KB Output is correct
21 Correct 50 ms 348 KB Output is correct
22 Correct 27 ms 348 KB Output is correct
23 Correct 17 ms 348 KB Output is correct
24 Correct 27 ms 564 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 344 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 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 17 ms 348 KB Output is correct
14 Correct 57 ms 344 KB Output is correct
15 Correct 72 ms 536 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 20 ms 348 KB Output is correct
18 Correct 9 ms 344 KB Output is correct
19 Correct 19 ms 556 KB Output is correct
20 Correct 23 ms 564 KB Output is correct
21 Correct 50 ms 560 KB Output is correct
22 Correct 23 ms 556 KB Output is correct
23 Correct 17 ms 344 KB Output is correct
24 Correct 23 ms 348 KB Output is correct
25 Execution timed out 2052 ms 7268 KB Time limit exceeded
26 Halted 0 ms 0 KB -