oj.uz

Submission #728416

# Submission time Handle Problem Language Result Execution time Memory
728416 2023-04-22T11:13:17 Z becaido Palembang Bridges (APIO15_bridge) C++17
100 / 100
 68 ms 5792 KB 
#pragma GCC optimize("O3")
#pragma GCC target("popcnt")
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define Waimai ios::sync_with_stdio(false),cin.tie(0)
#define FOR(x,a,b) for(int x=a,I=b;x<=I;x++)
#define pb emplace_back
#define F first
#define S second

const int SIZE = 1e5 + 5;

int n, k;
int a[2 * SIZE];
ll ans, sum[SIZE];
pair<int, int> p[SIZE];

ll lsum, rsum;
int lcnt, rcnt, mid;
priority_queue<int> lpq;
priority_queue<int, vector<int>, greater<int>> rpq;

void Add (int x) {
    if (lpq.empty() || x <= lpq.top()) {
        lcnt++;
        lsum += x;
        lpq.push (x);
    } else {
        rcnt++;
        rsum += x;
        rpq.push (x);
    }
    while (rpq.size() > lpq.size()) {
        int y = rpq.top();
        rpq.pop();
        rcnt--;
        rsum -= y;
        lpq.push (y);
        lcnt++;
        lsum += y;
    }
    while (lpq.size() > rpq.size() + 1) {
        int y = lpq.top();
        lpq.pop();
        lcnt--;
        lsum -= y;
        rpq.push (y);
        rcnt++;
        rsum += y;
    }
    mid = lpq.top();
}

void solve() {
    cin >> k >> n;
    if (k == 1) {
        int siz = 0;
        FOR (i, 1, n) {
            char cx, cy;
            int x, y;
            cin >> cx >> x >> cy >> y;
            if (cx == cy) ans += abs (x - y);
            else {
                ans++;
                a[++siz] = x;
                a[++siz] = y;
            }
        }
        n = siz;
        nth_element (a + 1, a + (n + 1) / 2, a + n + 1);
        mid = a[(n + 1) / 2];
        FOR (i, 1, n) ans += abs (a[i] - mid);
        cout << ans << '\n';
        return;
    }
    int siz = 0;
    FOR (i, 1, n) {
        char cx, cy;
        int x, y;
        cin >> cx >> x >> cy >> y;
        if (cx == cy) ans += abs (x - y);
        else {
            ans++;
            p[++siz] = {x, y};
        }
    }
    n = siz;
    sort (p + 1, p + n + 1, [] (auto p1, auto p2) {
        return p1.F + p1.S < p2.F + p2.S;
    });
    FOR (i, 1, n) {
        auto [x, y] = p[i];
        Add (x), Add (y);
        sum[i] += (lcnt - rcnt) * mid - lsum + rsum;
    }
    lcnt = rcnt = 0;
    lsum = rsum = 0;
    lpq = {}, rpq = {};
    for (int i = n; i >= 1; i--) {
        auto [x, y] = p[i];
        Add (x), Add (y);
        sum[i - 1] += (lcnt - rcnt) * mid - lsum + rsum;
    }
    cout << ans + *min_element (sum, sum + n + 1) << '\n';
}

int main() {
    Waimai;
    solve();
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 20 ms 1872 KB Output is correct
13 Correct 35 ms 3416 KB Output is correct
14 Correct 20 ms 2228 KB Output is correct
15 Correct 16 ms 2132 KB Output is correct
16 Correct 26 ms 2664 KB Output is correct
17 Correct 23 ms 3364 KB Output is correct
18 Correct 25 ms 3020 KB Output is correct
19 Correct 26 ms 3412 KB Output is correct
20 Correct 24 ms 2928 KB Output is correct
21 Correct 25 ms 3052 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 224 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 328 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 324 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 35 ms 3908 KB Output is correct
26 Correct 48 ms 3992 KB Output is correct
27 Correct 63 ms 4880 KB Output is correct
28 Correct 66 ms 5792 KB Output is correct
29 Correct 68 ms 5452 KB Output is correct
30 Correct 35 ms 3144 KB Output is correct
31 Correct 50 ms 5056 KB Output is correct
32 Correct 62 ms 5460 KB Output is correct
33 Correct 57 ms 5072 KB Output is correct
34 Correct 53 ms 5428 KB Output is correct
35 Correct 38 ms 5016 KB Output is correct
36 Correct 53 ms 5176 KB Output is correct
37 Correct 27 ms 3844 KB Output is correct