답안 #302383

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
302383	2020-09-18T16:11:04 Z	errorgorn	Discharging (NOI20_discharging)	C++14	100 / 100	171 ms	22952 KB

Discharging

#include <bits/stdc++.h>

using namespace std;



#define ll long long

#define ii pair<int,int>

#define fi first

#define se second

#define endl '\n'



#define rep(x,s,e) for (auto x=s-(s>e);x!=e-(s>e);(s<e?x++:x--))

#define sz(x) (int) (x).size()

#define all(x) (x).begin(),(x).end()



struct line{

	ll m,c;

	

	line (ll _m,ll _c){

		m=_m,c=_c;

	}

	

	ll get(ll x){

		return m*x+c;

	}

};



struct LCH{	

	deque<line> dq;

	

	double POI(line i,line j){

		return (double)(i.c-j.c)/(double)(j.m-i.m);

	}

	

	void insert(line i){

		//cout<<"debug: "<<i.m<<" "<<i.c<<endl;

		

		while (sz(dq)>=2 && POI(dq.back(),i)<POI(dq[sz(dq)-2],dq.back())) dq.pop_back();

		dq.push_back(i);

		

		//for (auto &it:dq) cout<<it.m<<"_"<<it.c<<" ";cout<<endl;

	}

	

	ll query(ll x){

		while (sz(dq)>=2 && POI(dq[0],dq[1])<x) dq.pop_front();

		

		return dq.front().get(x);

	}

} hull=LCH();



int n;

ll arr[1000005];

vector<ii> v;



int main(){

	cin.tie(0);

	cout.tie(0);

	ios::sync_with_stdio(false);

	

	cin>>n;

	rep(x,0,n){

		cin>>arr[x];

		if (v.empty() || v.back().fi<arr[x]){

			v.push_back(ii(arr[x],1));

		}

		else{

			v.back().se++;

		}

	}

	

	ll pw=0;

	

	//for (auto &it:v) cout<<it.fi<<" "<<it.se<<endl;

	

	for (auto &it:v) pw+=it.se;

	

	hull.insert(line(pw,0));

	

	ll ans=0;

	for (auto &it:v){

		ans=hull.query(it.fi);

		

		//cout<<ans<<endl;

		pw-=it.se;

		hull.insert(line(pw,ans));

	}

	

	cout<<ans<<endl;

}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	512 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct

Subtask #2
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	416 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	388 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	416 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	388 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	115 ms	16508 KB	Output is correct
17	Correct	123 ms	17784 KB	Output is correct
18	Correct	100 ms	16620 KB	Output is correct
19	Correct	122 ms	17536 KB	Output is correct
20	Correct	117 ms	17768 KB	Output is correct
21	Correct	115 ms	17640 KB	Output is correct
22	Correct	111 ms	16868 KB	Output is correct
23	Correct	129 ms	21856 KB	Output is correct
24	Correct	125 ms	22340 KB	Output is correct
25	Correct	126 ms	22952 KB	Output is correct
26	Correct	133 ms	21144 KB	Output is correct
27	Correct	132 ms	16232 KB	Output is correct
28	Correct	117 ms	17896 KB	Output is correct
29	Correct	128 ms	22464 KB	Output is correct
30	Correct	136 ms	21440 KB	Output is correct

Subtask #4
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	118 ms	17784 KB	Output is correct
2	Correct	119 ms	17888 KB	Output is correct
3	Correct	118 ms	17952 KB	Output is correct
4	Correct	122 ms	17784 KB	Output is correct
5	Correct	122 ms	17856 KB	Output is correct
6	Correct	116 ms	17856 KB	Output is correct
7	Correct	124 ms	17904 KB	Output is correct
8	Correct	115 ms	17784 KB	Output is correct
9	Correct	167 ms	17800 KB	Output is correct
10	Correct	171 ms	17808 KB	Output is correct

Subtask #5
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	512 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	1 ms	384 KB	Output is correct
18	Correct	1 ms	416 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	388 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	1 ms	384 KB	Output is correct
31	Correct	1 ms	384 KB	Output is correct
32	Correct	1 ms	384 KB	Output is correct
33	Correct	1 ms	384 KB	Output is correct
34	Correct	1 ms	384 KB	Output is correct
35	Correct	1 ms	384 KB	Output is correct
36	Correct	1 ms	384 KB	Output is correct
37	Correct	1 ms	384 KB	Output is correct
38	Correct	1 ms	384 KB	Output is correct
39	Correct	1 ms	384 KB	Output is correct
40	Correct	1 ms	384 KB	Output is correct
41	Correct	1 ms	416 KB	Output is correct
42	Correct	1 ms	384 KB	Output is correct
43	Correct	1 ms	384 KB	Output is correct
44	Correct	1 ms	384 KB	Output is correct
45	Correct	1 ms	384 KB	Output is correct
46	Correct	1 ms	384 KB	Output is correct
47	Correct	1 ms	384 KB	Output is correct
48	Correct	1 ms	384 KB	Output is correct
49	Correct	1 ms	384 KB	Output is correct
50	Correct	1 ms	384 KB	Output is correct

Subtask #6
28.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	512 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	1 ms	384 KB	Output is correct
18	Correct	1 ms	416 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	388 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	115 ms	16508 KB	Output is correct
31	Correct	123 ms	17784 KB	Output is correct
32	Correct	100 ms	16620 KB	Output is correct
33	Correct	122 ms	17536 KB	Output is correct
34	Correct	117 ms	17768 KB	Output is correct
35	Correct	115 ms	17640 KB	Output is correct
36	Correct	111 ms	16868 KB	Output is correct
37	Correct	129 ms	21856 KB	Output is correct
38	Correct	125 ms	22340 KB	Output is correct
39	Correct	126 ms	22952 KB	Output is correct
40	Correct	133 ms	21144 KB	Output is correct
41	Correct	132 ms	16232 KB	Output is correct
42	Correct	117 ms	17896 KB	Output is correct
43	Correct	128 ms	22464 KB	Output is correct
44	Correct	136 ms	21440 KB	Output is correct
45	Correct	118 ms	17784 KB	Output is correct
46	Correct	119 ms	17888 KB	Output is correct
47	Correct	118 ms	17952 KB	Output is correct
48	Correct	122 ms	17784 KB	Output is correct
49	Correct	122 ms	17856 KB	Output is correct
50	Correct	116 ms	17856 KB	Output is correct
51	Correct	124 ms	17904 KB	Output is correct
52	Correct	115 ms	17784 KB	Output is correct
53	Correct	167 ms	17800 KB	Output is correct
54	Correct	171 ms	17808 KB	Output is correct
55	Correct	1 ms	384 KB	Output is correct
56	Correct	1 ms	384 KB	Output is correct
57	Correct	1 ms	384 KB	Output is correct
58	Correct	1 ms	384 KB	Output is correct
59	Correct	1 ms	384 KB	Output is correct
60	Correct	1 ms	384 KB	Output is correct
61	Correct	1 ms	384 KB	Output is correct
62	Correct	1 ms	384 KB	Output is correct
63	Correct	1 ms	384 KB	Output is correct
64	Correct	1 ms	384 KB	Output is correct
65	Correct	1 ms	384 KB	Output is correct
66	Correct	1 ms	416 KB	Output is correct
67	Correct	1 ms	384 KB	Output is correct
68	Correct	1 ms	384 KB	Output is correct
69	Correct	1 ms	384 KB	Output is correct
70	Correct	1 ms	384 KB	Output is correct
71	Correct	1 ms	384 KB	Output is correct
72	Correct	1 ms	384 KB	Output is correct
73	Correct	1 ms	384 KB	Output is correct
74	Correct	1 ms	384 KB	Output is correct
75	Correct	1 ms	384 KB	Output is correct
76	Correct	139 ms	14128 KB	Output is correct
77	Correct	97 ms	14204 KB	Output is correct
78	Correct	94 ms	13560 KB	Output is correct
79	Correct	96 ms	13816 KB	Output is correct
80	Correct	110 ms	14452 KB	Output is correct
81	Correct	92 ms	13688 KB	Output is correct
82	Correct	95 ms	13688 KB	Output is correct
83	Correct	97 ms	14200 KB	Output is correct
84	Correct	96 ms	14000 KB	Output is correct
85	Correct	96 ms	14200 KB	Output is correct
86	Correct	111 ms	13676 KB	Output is correct
87	Correct	94 ms	13556 KB	Output is correct
88	Correct	97 ms	13944 KB	Output is correct
89	Correct	98 ms	13664 KB	Output is correct
90	Correct	93 ms	13688 KB	Output is correct
91	Correct	102 ms	13432 KB	Output is correct
92	Correct	145 ms	18912 KB	Output is correct
93	Correct	122 ms	17632 KB	Output is correct
94	Correct	90 ms	13048 KB	Output is correct
95	Correct	101 ms	14584 KB	Output is correct
96	Correct	95 ms	13524 KB	Output is correct
97	Correct	97 ms	13816 KB	Output is correct
98	Correct	106 ms	13944 KB	Output is correct
99	Correct	96 ms	13560 KB	Output is correct
100	Correct	134 ms	13688 KB	Output is correct

답안 #302383

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 13.0 / 13.0

Subtask #3 25.0 / 25.0

Subtask #4 11.0 / 11.0

Subtask #5 14.0 / 14.0

Subtask #6 28.0 / 28.0

Subtask #1
9.0 / 9.0

Subtask #2
13.0 / 13.0

Subtask #3
25.0 / 25.0

Subtask #4
11.0 / 11.0

Subtask #5
14.0 / 14.0

Subtask #6
28.0 / 28.0