답안 #870862

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
870862	2023-11-09T10:25:40 Z	pcc	Discharging (NOI20_discharging)	C++14	100 / 100	86 ms	25108 KB

Discharging

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define int ll
#define pll pair<ll,ll>
#define pii pair<int,int>
#define fs first
#define sc second
#define tlll tuple<ll,ll,ll>


const ll mxn = 1e6+10;
vector<pll> v;
ll sum[mxn],dp;
deque<pll> dq;
int n;
ll total = 0;

inline ll calc(pll line,ll val){
	return line.fs*val+line.sc;
}
inline bool out(pll a,pll b,pll c){
	return (a.sc-b.sc)*(c.fs-b.fs)>=(b.sc-c.sc)*(b.fs-a.fs);
}

main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n;
	for(int i = 0;i<n;i++){
		int k;
		cin>>k;
		if(v.empty()||v.back().fs < k)v.push_back({k,1});
		else v.back().sc++;
	}
	dq.push_back(make_pair(0ll,0ll));
	sum[0] = v[0].sc;
	for(int i = 1;i<v.size();i++){
		sum[i] = sum[i-1]+v[i].sc;
	}
	for(int i = 0;i<v.size();i++){
		pll p = v[i];
		while(dq.size()>1&&calc(dq[1],p.fs)<=calc(dq[0],p.fs))dq.pop_front();
		dp = p.fs*n+calc(dq.front(),p.fs);
		pll now = make_pair(-sum[i],dp);
		while(dq.size()>1&&out(dq.end()[-2],dq.end()[-1],now))dq.pop_back();
		dq.push_back(make_pair(-sum[i],dp));
	}
	cout<<dp;
}

Compilation message

Discharging.cpp:27:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   27 | main(){
      | ^~~~
Discharging.cpp: In function 'int main()':
Discharging.cpp:38:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int i = 1;i<v.size();i++){
      |                ~^~~~~~~~~
Discharging.cpp:41:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for(int i = 0;i<v.size();i++){
      |                ~^~~~~~~~~

Subtask #1
9.0 / 9.0

#	결과	메모리	Grader output
1	Correct	344 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	348 KB	Output is correct
10	Correct	468 KB	Output is correct
11	Correct	348 KB	Output is correct
12	Correct	348 KB	Output is correct
13	Correct	348 KB	Output is correct
14	Correct	348 KB	Output is correct

Subtask #2
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	2 ms	348 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	1 ms	348 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	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	2 ms	348 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	1 ms	348 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	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	63 ms	15976 KB	Output is correct
17	Correct	68 ms	18356 KB	Output is correct
18	Correct	57 ms	13488 KB	Output is correct
19	Correct	68 ms	17444 KB	Output is correct
20	Correct	70 ms	18624 KB	Output is correct
21	Correct	67 ms	17748 KB	Output is correct
22	Correct	71 ms	18384 KB	Output is correct
23	Correct	76 ms	24740 KB	Output is correct
24	Correct	72 ms	23740 KB	Output is correct
25	Correct	76 ms	25108 KB	Output is correct
26	Correct	81 ms	23832 KB	Output is correct
27	Correct	61 ms	16660 KB	Output is correct
28	Correct	69 ms	17844 KB	Output is correct
29	Correct	75 ms	23692 KB	Output is correct
30	Correct	86 ms	24412 KB	Output is correct

Subtask #4
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	68 ms	436 KB	Output is correct
2	Correct	69 ms	348 KB	Output is correct
3	Correct	69 ms	440 KB	Output is correct
4	Correct	69 ms	440 KB	Output is correct
5	Correct	69 ms	348 KB	Output is correct
6	Correct	69 ms	348 KB	Output is correct
7	Correct	69 ms	348 KB	Output is correct
8	Correct	68 ms	344 KB	Output is correct
9	Correct	68 ms	444 KB	Output is correct
10	Correct	77 ms	436 KB	Output is correct

Subtask #5
14.0 / 14.0

#	결과	실행 시간	메모리	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	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	468 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	2 ms	348 KB	Output is correct
22	Correct	1 ms	344 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	0 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	0 ms	348 KB	Output is correct
35	Correct	0 ms	472 KB	Output is correct
36	Correct	1 ms	348 KB	Output is correct
37	Correct	0 ms	348 KB	Output is correct
38	Correct	0 ms	348 KB	Output is correct
39	Correct	0 ms	348 KB	Output is correct
40	Correct	0 ms	348 KB	Output is correct
41	Correct	0 ms	348 KB	Output is correct
42	Correct	0 ms	348 KB	Output is correct
43	Correct	0 ms	348 KB	Output is correct
44	Correct	0 ms	464 KB	Output is correct
45	Correct	0 ms	348 KB	Output is correct
46	Correct	0 ms	348 KB	Output is correct
47	Correct	0 ms	348 KB	Output is correct
48	Correct	0 ms	344 KB	Output is correct
49	Correct	0 ms	348 KB	Output is correct
50	Correct	0 ms	348 KB	Output is correct

Subtask #6
28.0 / 28.0

#	결과	실행 시간	메모리	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	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	468 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	2 ms	348 KB	Output is correct
22	Correct	1 ms	344 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	63 ms	15976 KB	Output is correct
31	Correct	68 ms	18356 KB	Output is correct
32	Correct	57 ms	13488 KB	Output is correct
33	Correct	68 ms	17444 KB	Output is correct
34	Correct	70 ms	18624 KB	Output is correct
35	Correct	67 ms	17748 KB	Output is correct
36	Correct	71 ms	18384 KB	Output is correct
37	Correct	76 ms	24740 KB	Output is correct
38	Correct	72 ms	23740 KB	Output is correct
39	Correct	76 ms	25108 KB	Output is correct
40	Correct	81 ms	23832 KB	Output is correct
41	Correct	61 ms	16660 KB	Output is correct
42	Correct	69 ms	17844 KB	Output is correct
43	Correct	75 ms	23692 KB	Output is correct
44	Correct	86 ms	24412 KB	Output is correct
45	Correct	68 ms	436 KB	Output is correct
46	Correct	69 ms	348 KB	Output is correct
47	Correct	69 ms	440 KB	Output is correct
48	Correct	69 ms	440 KB	Output is correct
49	Correct	69 ms	348 KB	Output is correct
50	Correct	69 ms	348 KB	Output is correct
51	Correct	69 ms	348 KB	Output is correct
52	Correct	68 ms	344 KB	Output is correct
53	Correct	68 ms	444 KB	Output is correct
54	Correct	77 ms	436 KB	Output is correct
55	Correct	1 ms	348 KB	Output is correct
56	Correct	0 ms	348 KB	Output is correct
57	Correct	0 ms	348 KB	Output is correct
58	Correct	0 ms	348 KB	Output is correct
59	Correct	0 ms	348 KB	Output is correct
60	Correct	0 ms	472 KB	Output is correct
61	Correct	1 ms	348 KB	Output is correct
62	Correct	0 ms	348 KB	Output is correct
63	Correct	0 ms	348 KB	Output is correct
64	Correct	0 ms	348 KB	Output is correct
65	Correct	0 ms	348 KB	Output is correct
66	Correct	0 ms	348 KB	Output is correct
67	Correct	0 ms	348 KB	Output is correct
68	Correct	0 ms	348 KB	Output is correct
69	Correct	0 ms	464 KB	Output is correct
70	Correct	0 ms	348 KB	Output is correct
71	Correct	0 ms	348 KB	Output is correct
72	Correct	0 ms	348 KB	Output is correct
73	Correct	0 ms	344 KB	Output is correct
74	Correct	0 ms	348 KB	Output is correct
75	Correct	0 ms	348 KB	Output is correct
76	Correct	60 ms	6332 KB	Output is correct
77	Correct	59 ms	6448 KB	Output is correct
78	Correct	59 ms	5716 KB	Output is correct
79	Correct	56 ms	5968 KB	Output is correct
80	Correct	60 ms	6736 KB	Output is correct
81	Correct	56 ms	5968 KB	Output is correct
82	Correct	55 ms	5712 KB	Output is correct
83	Correct	58 ms	6480 KB	Output is correct
84	Correct	63 ms	6228 KB	Output is correct
85	Correct	59 ms	6324 KB	Output is correct
86	Correct	55 ms	5716 KB	Output is correct
87	Correct	59 ms	5716 KB	Output is correct
88	Correct	57 ms	5968 KB	Output is correct
89	Correct	57 ms	5972 KB	Output is correct
90	Correct	60 ms	5928 KB	Output is correct
91	Correct	64 ms	5460 KB	Output is correct
92	Correct	75 ms	19388 KB	Output is correct
93	Correct	68 ms	17592 KB	Output is correct
94	Correct	54 ms	5292 KB	Output is correct
95	Correct	66 ms	6740 KB	Output is correct
96	Correct	54 ms	5552 KB	Output is correct
97	Correct	55 ms	5968 KB	Output is correct
98	Correct	57 ms	6064 KB	Output is correct
99	Correct	58 ms	5808 KB	Output is correct
100	Correct	63 ms	6200 KB	Output is correct

답안 #870862

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