oj.uz

Submission #887492

# Submission time Handle Problem Language Result Execution time Memory
887492 2023-12-14T16:05:18 Z theghostking Palembang Bridges (APIO15_bridge) C++17
22 / 100
 78 ms 2588 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long

bool comp(pair<int,int> a, pair<int,int> b){
    return a.first+a.second < b.first+b.second;
}

signed main() {
    int k,n;
    cin >> k >> n;
    if (k == 1){
        int dist = 0;
        vector<int> arr;
        for (int i = 0; i<n; i++){
            char a1,a2;
            int d1,d2;
            cin >> a1 >> d1 >> a2 >> d2;
            if (a1 == a2){
                dist += abs(d1-d2);
            }
            else{
                dist++;
                arr.push_back(d1);
                arr.push_back(d2);
            }
        }
        sort(arr.begin(),arr.end());
        int vv = arr.size()/2;
        int md = arr[vv];
        for (auto u : arr){
            dist += abs(md-u);
        }
        cout << dist << '\n';
    }
    else if (k == 2){
        int dist = 0;
        vector<pair<int,int>> arr;
        for (int i = 0; i<n; i++){
            char a1,a2;
            int d1,d2;
            cin >> a1 >> d1 >> a2 >> d2;
            if (a1 == a2){
                dist += abs(d1-d2);
            }
            else{
                dist++;
                pair<int,int> tp = {d1,d2};
                arr.push_back(tp);
            }
        }
        if (arr.size() == 0){
            cout << dist << '\n';
            return 0;
        }
        sort(arr.begin(),arr.end(),comp);
        int sz = arr.size();
        int fst[sz], scd[sz];
        priority_queue<int> g,s;
        int ls = 0;
        int mr = 0;
        for (int i = 0; i<sz; i++){
            g.push(-arr[i].first);
            g.push(-arr[i].second);
            mr += arr[i].first;
            mr += arr[i].second;
            
            while (g.size() > s.size()){
                int temp = g.top();
                g.pop();
                s.push(-temp);
                ls += abs(temp);
                mr -= abs(temp);
            }
            int mid = s.top();
            int one = (s.size()*mid)-ls;
            int two = mr-(g.size()*mid);
            fst[i] = abs(one)+abs(two);
        }
        while (g.size()) g.pop();
        while (s.size()) s.pop();
        ls = 0;
        mr = 0;
        for (int i = sz-1; i>=0; i--){
            g.push(-arr[i].first);
            g.push(-arr[i].second);
            mr += arr[i].first;
            mr += arr[i].second;
            
            while (g.size() > s.size()){
                int temp = g.top();
                g.pop();
                s.push(-temp);
                ls += abs(temp);
                mr -= abs(temp);
            }
            int mid = s.top();
            int one = (s.size()*mid)-ls;
            int two = mr-(g.size()*mid);
            scd[i] = abs(one)+abs(two);
        }
        int xtra = 1e18;
        for (int i = 0; i<sz-1; i++){
            xtra = min(scd[i+1]+fst[i],xtra);
        }
        cout << dist+xtra << '\n';
    }
    return 0;
}

Subtask #1
8.0 / 8.0

# 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 1 ms 348 KB Output is correct
6 Correct 1 ms 404 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 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 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
12 Correct 35 ms 2440 KB Output is correct
13 Correct 78 ms 2552 KB Output is correct
14 Correct 50 ms 2500 KB Output is correct
15 Correct 45 ms 1560 KB Output is correct
16 Correct 54 ms 2500 KB Output is correct
17 Correct 69 ms 2588 KB Output is correct
18 Correct 65 ms 2500 KB Output is correct
19 Correct 78 ms 2500 KB Output is correct
20 Correct 59 ms 2560 KB Output is correct
21 Correct 68 ms 2544 KB Output is correct

Subtask #3
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 436 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 432 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 1 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# 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 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -