답안 #164920

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
164920	2019-11-24T06:21:06 Z	gs18103	Safety (NOI18_safety)	C++14	100 / 100	133 ms	45060 KB

safety

#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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

답안 #164920

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