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Submission #931822

# Submission time Handle Problem Language Result Execution time Memory
931822 2024-02-22T11:29:03 Z Amirreza_Fakhri Palembang Bridges (APIO15_bridge) C++17
100 / 100
 175 ms 15956 KB 
// In the name of the God
#include <bits/stdc++.h>
#define ll long long
#define int long long
#define pb push_back
#define F first
#define S second
#define mp make_pair
#define pii pair <int, int>
#define smin(x, y) (x) = min((x), (y))
#define smax(x, y) (x) = max((x), (y))
#define all(x) (x).begin(), (x).end()
using namespace std;

const int inf = 1e9+7;
const int mod = 998244353;
const int maxn = 1e5+5;

int k, n, sd = 0, su = 0, dp[maxn];
vector <pair <int, pii> > vec;
multiset <int> ali, stu;

void reset() {
    if (stu.size() > ali.size()) {
        int x = *stu.begin();
        stu.erase(stu.begin());
        su -= x;
        ali.insert(x);
        sd += x;
    }
    if (ali.size()-1 > stu.size()) {
        int x = *ali.rbegin();
        ali.erase(ali.find(x));
        sd -= x;
        stu.insert(x);
        su += x;
    }
}

void add(int x) {
    int m = ali.size() ? *ali.rbegin() : inf;
    if (x <= m) {
        ali.insert(x); sd += x;
    }
    else {
        stu.insert(x); su += x;
    }
    reset();
}

int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> k >> n;
    int res = 0;
    for (int i = 0; i < n; i++) {
        char p, q; int s, t; cin >> p >> s >> q >> t;
        if (p == q) res += abs(s-t);
        else {
            res++;
            vec.pb(mp(s+t, mp(s, t)));
        }
    }
    n = vec.size();
    sort(all(vec));
    for (int i = 0; i < n; i++) {
        int s = vec[i].S.F, t = vec[i].S.S;
        add(s), add(t);
        dp[i] = su-sd;
    }
    int ans = dp[n-1];
    if (k == 2) {
        sd = su = 0;
        ali.clear(), stu.clear();
        for (int i = n-1; i >= 1; i--) {
            int s = vec[i].S.F, t = vec[i].S.S;
            add(s), add(t);
            smin(ans, su-sd+dp[i-1]);
        }
    }
    cout << ans+res << '\n';
    return 0;
}



/*
2 5
B 0 A 4
B 1 B 3
A 5 B 7
B 2 A 6
B 1 A 7
*/

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 444 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 480 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 484 KB Output is correct
11 Correct 1 ms 600 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 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 62 ms 13712 KB Output is correct
13 Correct 89 ms 15836 KB Output is correct
14 Correct 79 ms 13248 KB Output is correct
15 Correct 48 ms 8904 KB Output is correct
16 Correct 65 ms 15036 KB Output is correct
17 Correct 59 ms 15128 KB Output is correct
18 Correct 83 ms 15224 KB Output is correct
19 Correct 67 ms 15956 KB Output is correct
20 Correct 65 ms 14568 KB Output is correct
21 Correct 63 ms 14784 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 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 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 468 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 468 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 1 ms 364 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 480 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct

Subtask #5
37.0 / 37.0

# 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 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 344 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 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 121 ms 13752 KB Output is correct
26 Correct 118 ms 14016 KB Output is correct
27 Correct 150 ms 14528 KB Output is correct
28 Correct 145 ms 15004 KB Output is correct
29 Correct 175 ms 15200 KB Output is correct
30 Correct 73 ms 8044 KB Output is correct
31 Correct 97 ms 14268 KB Output is correct
32 Correct 92 ms 14780 KB Output is correct
33 Correct 117 ms 14588 KB Output is correct
34 Correct 114 ms 14668 KB Output is correct
35 Correct 114 ms 14216 KB Output is correct
36 Correct 99 ms 14668 KB Output is correct
37 Correct 102 ms 13500 KB Output is correct