oj.uz

Submission #164920

# Submission time Handle Problem Language Result Execution time Memory
164920 2019-11-24T06:21:06 Z gs18103 Safety (NOI18_safety) C++14
100 / 100
 133 ms 45060 KB 
#include <bits/stdc++.h>
#define eb emplace_back
#define em emplace
#define all(v) v.begin(), v.end()
#define fi first
#define se second

using namespace std;
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;

const int MAX = 303030;
const int INF = 1 << 30;
const ll LINF = 1LL << 60;

struct Node {
    priority_queue <ll> L;
    priority_queue <ll, vector <ll>, greater <ll> > R;
    ll ans = 0, s = 0;
    
    void init(int x) {L.em(x), R.em(x);}
    int size() {return (int)(L.size() + R.size());}
    void merge(Node &X) {
        ans += X.ans;
        while(!X.L.empty()) {
            ll temp = X.L.top() - X.s;
            X.L.pop();
            if(temp >= R.top() + s){
                ans += temp - R.top() - s;
                L.em(R.top() + 2 * s); R.pop();
                R.em(temp - s);
            }
            else L.em(temp + s);
        }
        while(!X.R.empty()) {
            ll temp = X.R.top() + X.s;
            X.R.pop();
            if(temp <= L.top() - s){
                ans += L.top() - temp - s;
                R.em(L.top() - 2 * s); L.pop();
                L.em(temp + s);
            }
            else R.em(temp - s);
        }
    }
} dp[MAX];

int p[MAX], idx[MAX];
ll l[MAX];

int main() {
    ios::sync_with_stdio(false); cin.tie(0);

    int n;
    ll h;
    cin >> n >> h;
    for(int i = 1; i <= n; i++) {
        cin >> l[i];
        dp[i].init(l[i]);
        idx[i] = i;
    }
    for(int i = 2; i <= n; i++) {
        p[i] = i - 1;
    }

    for(int i = n; i > 1; i--) {
        dp[idx[i]].s += h;
        if(dp[idx[i]].size() < dp[idx[p[i]]].size()) {
            dp[idx[p[i]]].merge(dp[idx[i]]);
        }
        else {
            dp[idx[i]].merge(dp[idx[p[i]]]);
            idx[p[i]] = idx[i];
        }
    }
    cout << dp[idx[1]].ans;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 24056 KB Output is correct
2 Correct 24 ms 24056 KB Output is correct
3 Correct 26 ms 24056 KB Output is correct
4 Correct 25 ms 24056 KB Output is correct
5 Correct 25 ms 24060 KB Output is correct
6 Correct 25 ms 24056 KB Output is correct
7 Correct 24 ms 24056 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 24056 KB Output is correct
2 Correct 25 ms 24120 KB Output is correct
3 Correct 25 ms 24084 KB Output is correct
4 Correct 24 ms 24056 KB Output is correct
5 Correct 25 ms 24056 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 24056 KB Output is correct
2 Correct 25 ms 24056 KB Output is correct
3 Correct 25 ms 24056 KB Output is correct
4 Correct 26 ms 24188 KB Output is correct
5 Correct 25 ms 24056 KB Output is correct
6 Correct 26 ms 24060 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 97 ms 38884 KB Output is correct
2 Correct 127 ms 43844 KB Output is correct
3 Correct 131 ms 44496 KB Output is correct

Subtask #5
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 24056 KB Output is correct
2 Correct 24 ms 24056 KB Output is correct
3 Correct 26 ms 24056 KB Output is correct
4 Correct 25 ms 24056 KB Output is correct
5 Correct 25 ms 24060 KB Output is correct
6 Correct 25 ms 24056 KB Output is correct
7 Correct 24 ms 24056 KB Output is correct
8 Correct 25 ms 24056 KB Output is correct
9 Correct 25 ms 24120 KB Output is correct
10 Correct 25 ms 24084 KB Output is correct
11 Correct 24 ms 24056 KB Output is correct
12 Correct 25 ms 24056 KB Output is correct
13 Correct 26 ms 24056 KB Output is correct
14 Correct 25 ms 24156 KB Output is correct
15 Correct 25 ms 24184 KB Output is correct
16 Correct 26 ms 24184 KB Output is correct
17 Correct 26 ms 24184 KB Output is correct
18 Correct 25 ms 24184 KB Output is correct
19 Correct 25 ms 24084 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 24056 KB Output is correct
2 Correct 24 ms 24056 KB Output is correct
3 Correct 26 ms 24056 KB Output is correct
4 Correct 25 ms 24056 KB Output is correct
5 Correct 25 ms 24060 KB Output is correct
6 Correct 25 ms 24056 KB Output is correct
7 Correct 24 ms 24056 KB Output is correct
8 Correct 25 ms 24056 KB Output is correct
9 Correct 25 ms 24120 KB Output is correct
10 Correct 25 ms 24084 KB Output is correct
11 Correct 24 ms 24056 KB Output is correct
12 Correct 25 ms 24056 KB Output is correct
13 Correct 26 ms 24056 KB Output is correct
14 Correct 25 ms 24156 KB Output is correct
15 Correct 25 ms 24184 KB Output is correct
16 Correct 26 ms 24184 KB Output is correct
17 Correct 26 ms 24184 KB Output is correct
18 Correct 25 ms 24184 KB Output is correct
19 Correct 25 ms 24084 KB Output is correct
20 Correct 26 ms 24184 KB Output is correct
21 Correct 26 ms 24172 KB Output is correct
22 Correct 26 ms 24184 KB Output is correct
23 Correct 25 ms 24184 KB Output is correct
24 Correct 25 ms 24184 KB Output is correct
25 Correct 25 ms 24184 KB Output is correct
26 Correct 26 ms 24184 KB Output is correct
27 Correct 25 ms 24156 KB Output is correct

Subtask #7
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 24056 KB Output is correct
2 Correct 24 ms 24056 KB Output is correct
3 Correct 26 ms 24056 KB Output is correct
4 Correct 25 ms 24056 KB Output is correct
5 Correct 25 ms 24060 KB Output is correct
6 Correct 25 ms 24056 KB Output is correct
7 Correct 24 ms 24056 KB Output is correct
8 Correct 25 ms 24056 KB Output is correct
9 Correct 25 ms 24120 KB Output is correct
10 Correct 25 ms 24084 KB Output is correct
11 Correct 24 ms 24056 KB Output is correct
12 Correct 25 ms 24056 KB Output is correct
13 Correct 26 ms 24056 KB Output is correct
14 Correct 25 ms 24156 KB Output is correct
15 Correct 25 ms 24184 KB Output is correct
16 Correct 26 ms 24184 KB Output is correct
17 Correct 26 ms 24184 KB Output is correct
18 Correct 25 ms 24184 KB Output is correct
19 Correct 25 ms 24084 KB Output is correct
20 Correct 26 ms 24184 KB Output is correct
21 Correct 26 ms 24172 KB Output is correct
22 Correct 26 ms 24184 KB Output is correct
23 Correct 25 ms 24184 KB Output is correct
24 Correct 25 ms 24184 KB Output is correct
25 Correct 25 ms 24184 KB Output is correct
26 Correct 26 ms 24184 KB Output is correct
27 Correct 25 ms 24156 KB Output is correct
28 Correct 28 ms 24696 KB Output is correct
29 Correct 28 ms 24672 KB Output is correct
30 Correct 29 ms 24696 KB Output is correct
31 Correct 27 ms 24568 KB Output is correct
32 Correct 27 ms 24568 KB Output is correct
33 Correct 28 ms 24676 KB Output is correct
34 Correct 28 ms 24696 KB Output is correct

Subtask #8
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 24056 KB Output is correct
2 Correct 24 ms 24056 KB Output is correct
3 Correct 26 ms 24056 KB Output is correct
4 Correct 25 ms 24056 KB Output is correct
5 Correct 25 ms 24060 KB Output is correct
6 Correct 25 ms 24056 KB Output is correct
7 Correct 24 ms 24056 KB Output is correct
8 Correct 25 ms 24056 KB Output is correct
9 Correct 25 ms 24120 KB Output is correct
10 Correct 25 ms 24084 KB Output is correct
11 Correct 24 ms 24056 KB Output is correct
12 Correct 25 ms 24056 KB Output is correct
13 Correct 25 ms 24056 KB Output is correct
14 Correct 25 ms 24056 KB Output is correct
15 Correct 25 ms 24056 KB Output is correct
16 Correct 26 ms 24188 KB Output is correct
17 Correct 25 ms 24056 KB Output is correct
18 Correct 26 ms 24060 KB Output is correct
19 Correct 26 ms 24056 KB Output is correct
20 Correct 25 ms 24156 KB Output is correct
21 Correct 25 ms 24184 KB Output is correct
22 Correct 26 ms 24184 KB Output is correct
23 Correct 26 ms 24184 KB Output is correct
24 Correct 25 ms 24184 KB Output is correct
25 Correct 25 ms 24084 KB Output is correct
26 Correct 26 ms 24184 KB Output is correct
27 Correct 26 ms 24172 KB Output is correct
28 Correct 26 ms 24184 KB Output is correct
29 Correct 25 ms 24184 KB Output is correct
30 Correct 25 ms 24184 KB Output is correct
31 Correct 25 ms 24184 KB Output is correct
32 Correct 26 ms 24184 KB Output is correct
33 Correct 25 ms 24156 KB Output is correct
34 Correct 28 ms 24696 KB Output is correct
35 Correct 28 ms 24672 KB Output is correct
36 Correct 29 ms 24696 KB Output is correct
37 Correct 27 ms 24568 KB Output is correct
38 Correct 27 ms 24568 KB Output is correct
39 Correct 28 ms 24676 KB Output is correct
40 Correct 28 ms 24696 KB Output is correct
41 Correct 28 ms 24652 KB Output is correct
42 Correct 27 ms 24440 KB Output is correct
43 Correct 28 ms 24596 KB Output is correct
44 Correct 27 ms 24696 KB Output is correct
45 Correct 28 ms 24668 KB Output is correct
46 Correct 27 ms 24568 KB Output is correct

Subtask #9
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 24056 KB Output is correct
2 Correct 24 ms 24056 KB Output is correct
3 Correct 26 ms 24056 KB Output is correct
4 Correct 25 ms 24056 KB Output is correct
5 Correct 25 ms 24060 KB Output is correct
6 Correct 25 ms 24056 KB Output is correct
7 Correct 24 ms 24056 KB Output is correct
8 Correct 25 ms 24056 KB Output is correct
9 Correct 25 ms 24120 KB Output is correct
10 Correct 25 ms 24084 KB Output is correct
11 Correct 24 ms 24056 KB Output is correct
12 Correct 25 ms 24056 KB Output is correct
13 Correct 25 ms 24056 KB Output is correct
14 Correct 25 ms 24056 KB Output is correct
15 Correct 25 ms 24056 KB Output is correct
16 Correct 26 ms 24188 KB Output is correct
17 Correct 25 ms 24056 KB Output is correct
18 Correct 26 ms 24060 KB Output is correct
19 Correct 97 ms 38884 KB Output is correct
20 Correct 127 ms 43844 KB Output is correct
21 Correct 131 ms 44496 KB Output is correct
22 Correct 26 ms 24056 KB Output is correct
23 Correct 25 ms 24156 KB Output is correct
24 Correct 25 ms 24184 KB Output is correct
25 Correct 26 ms 24184 KB Output is correct
26 Correct 26 ms 24184 KB Output is correct
27 Correct 25 ms 24184 KB Output is correct
28 Correct 25 ms 24084 KB Output is correct
29 Correct 26 ms 24184 KB Output is correct
30 Correct 26 ms 24172 KB Output is correct
31 Correct 26 ms 24184 KB Output is correct
32 Correct 25 ms 24184 KB Output is correct
33 Correct 25 ms 24184 KB Output is correct
34 Correct 25 ms 24184 KB Output is correct
35 Correct 26 ms 24184 KB Output is correct
36 Correct 25 ms 24156 KB Output is correct
37 Correct 28 ms 24696 KB Output is correct
38 Correct 28 ms 24672 KB Output is correct
39 Correct 29 ms 24696 KB Output is correct
40 Correct 27 ms 24568 KB Output is correct
41 Correct 27 ms 24568 KB Output is correct
42 Correct 28 ms 24676 KB Output is correct
43 Correct 28 ms 24696 KB Output is correct
44 Correct 28 ms 24652 KB Output is correct
45 Correct 27 ms 24440 KB Output is correct
46 Correct 28 ms 24596 KB Output is correct
47 Correct 27 ms 24696 KB Output is correct
48 Correct 28 ms 24668 KB Output is correct
49 Correct 27 ms 24568 KB Output is correct
50 Correct 133 ms 45060 KB Output is correct
51 Correct 114 ms 42140 KB Output is correct
52 Correct 112 ms 41312 KB Output is correct
53 Correct 127 ms 43712 KB Output is correct
54 Correct 133 ms 44256 KB Output is correct
55 Correct 116 ms 41668 KB Output is correct
56 Correct 124 ms 43168 KB Output is correct
57 Correct 114 ms 41756 KB Output is correct
58 Correct 107 ms 39392 KB Output is correct
59 Correct 125 ms 43360 KB Output is correct