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Submission #1014423

# Submission time Handle Problem Language Result Execution time Memory
1014423 2024-07-04T20:59:22 Z orcslop Palembang Bridges (APIO15_bridge) C++17
100 / 100
 75 ms 8704 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
#define int long long
#define pb push_back
#define all(x) begin(x), end(x)
#define sz(x) (int) (x).size()
#define f first
#define s second
#define mkp make_pair
#define pii pair<int, int>
template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

const int MAXN = 1e5 + 5; 

int n, k, add, a, b; 
vector<pii> v; 
ordered_set<pii> st; 
int pref[MAXN], suff[MAXN]; 
priority_queue<int, vector<int>> l; 
priority_queue<int, vector<int>, greater<int>> r; 

void insert(int x){
    int med = (l.empty() ? 1e18 : l.top()); 
    if(x <= med){
        l.push(x); 
        a += x; 
    }
    else{
        r.push(x); 
        b += x; 
    }
    if(r.size() + 1 < l.size()){
        x = l.top(); 
        l.pop(); 
        r.push(x); 
        a -= x; 
        b += x; 
    }
    else if(l.size() < r.size()){
        x = r.top(); 
        l.push(x); 
        r.pop(); 
        a += x; 
        b -= x; 
    }
}

int32_t main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> k >> n; 
    if(k == 1){
        vector<int> temp; 
        for(int i = 0; i < n; i++){
            char a, b; 
            int x, y; 
            cin >> a >> x >> b >> y; 
            if(a == b) add += abs(x - y); 
            else{
                temp.pb(x); 
                temp.pb(y); 
            }
        }
        n = sz(temp) / 2; 
        sort(all(temp)); 
        int ans = 0; 
        for(int i = 0; i < 2 * n; i++){
            ans += abs(temp[i] - temp[n]); 
        }
        cout << ans + add + n << '\n'; 
        return 0; 
    }
    for(int i = 0; i < n; i++){
        char a, b; 
        int x, y; 
        cin >> a >> x >> b >> y; 
        if(a == b) add += abs(x - y); 
        else v.pb(mkp(x, y)); 
    }
    n = sz(v); 
    if(n == 0){
        cout << add << '\n'; 
        return 0; 
    }
    sort(all(v), [](pii &p1, pii &p2){
        return (p1.f + p1.s) < (p2.f + p2.s); 
    }); 
    a = 0, b = 0; 
    for(int i = 0; i < n; i++){
        insert(v[i].f); 
        insert(v[i].s); 
        pref[i] = b - a; 
    }
    while(!l.empty()) l.pop(); 
    while(!r.empty()) r.pop(); 
    a = 0, b = 0; 
    for(int i = n - 1; i >= 0; i--){ 
        insert(v[i].f); 
        insert(v[i].s); 
        suff[i] = b - a; 
    }
    int ans = pref[n - 1]; 
    for(int i = 0; i < n - 1; i++){
        ans = min(ans, pref[i] + suff[i + 1]); 
    }
    cout << ans + add + n << '\n'; 
    return 0; 
}

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 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 0 ms 348 KB Output is correct
10 Correct 0 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 0 ms 348 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 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 14 ms 2520 KB Output is correct
13 Correct 32 ms 2520 KB Output is correct
14 Correct 20 ms 2520 KB Output is correct
15 Correct 16 ms 1500 KB Output is correct
16 Correct 16 ms 2520 KB Output is correct
17 Correct 18 ms 2540 KB Output is correct
18 Correct 21 ms 2516 KB Output is correct
19 Correct 24 ms 2520 KB Output is correct
20 Correct 16 ms 2520 KB Output is correct
21 Correct 22 ms 2520 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 0 ms 460 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 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 0 ms 348 KB Output is correct

Subtask #4
32.0 / 32.0

# 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 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 1 ms 344 KB Output is correct
8 Correct 1 ms 344 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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 520 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct

Subtask #5
37.0 / 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 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 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 604 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 26 ms 7308 KB Output is correct
26 Correct 50 ms 7364 KB Output is correct
27 Correct 65 ms 8204 KB Output is correct
28 Correct 64 ms 8704 KB Output is correct
29 Correct 75 ms 8392 KB Output is correct
30 Correct 30 ms 4544 KB Output is correct
31 Correct 29 ms 7512 KB Output is correct
32 Correct 46 ms 8644 KB Output is correct
33 Correct 52 ms 8652 KB Output is correct
34 Correct 50 ms 8640 KB Output is correct
35 Correct 34 ms 8132 KB Output is correct
36 Correct 49 ms 8396 KB Output is correct
37 Correct 27 ms 7212 KB Output is correct