답안 #1017536

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1017536	2024-07-09T08:42:53 Z	vjudge1	Feast (NOI19_feast)	C++17	100 / 100	118 ms	15188 KB

feast

#include<bits/stdc++.h>
using namespace std;
#ifdef ONPC
#include"debug.h"
#else
#define debug(...) 42
#endif
#define endl '\n'
#define ll long long
#define pii pair<int,int>
#define F first
#define S second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
#define int long long
template<class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
const int mod = 1e9 + 7;
const int MAXN = 1e6 + 15;
const int inf = 0x3f3f3f3f;
const ll INF = 0x3f3f3f3f3f3f3f3f;
int a[MAXN], n, k;
pair<ll, int> dp[MAXN][2];
pii solve(ll lampda){
	dp[0][1] = {-lampda, 1};
	dp[0][0] = {0, 0};
	for (int i = 1; i <= n; i++){
		dp[i][0] = max(dp[i - 1][0], dp[i - 1][1]);
		dp[i][1] = max(make_pair(dp[i - 1][0].F + a[i] - lampda, dp[i - 1][0].S + 1), 
				make_pair(dp[i - 1][1].F + a[i], dp[i - 1][1].S));
	}
	return max(dp[n][0], dp[n][1]);
}

int32_t main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> k;
	for (int i = 1; i <= n; i++){
		cin >> a[i];
	}
	ll lo = 0, hi = 1e18;
	while (hi - lo > 1){
		ll mi = (lo + hi) >> 1;
		if (solve(mi).second >= k){
			lo = mi;
		} else {
			hi = mi;
		}
	}
	cout << solve(lo).F + k * lo;
}

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	76 ms	14464 KB	Output is correct
2	Correct	90 ms	14840 KB	Output is correct
3	Correct	58 ms	14928 KB	Output is correct
4	Correct	59 ms	14932 KB	Output is correct
5	Correct	57 ms	14928 KB	Output is correct
6	Correct	56 ms	14416 KB	Output is correct
7	Correct	57 ms	14424 KB	Output is correct
8	Correct	63 ms	14752 KB	Output is correct
9	Correct	56 ms	14660 KB	Output is correct
10	Correct	78 ms	14676 KB	Output is correct

Subtask #2

8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	49 ms	12880 KB	Output is correct
2	Correct	53 ms	13308 KB	Output is correct
3	Correct	49 ms	12888 KB	Output is correct
4	Correct	49 ms	12892 KB	Output is correct
5	Correct	58 ms	14424 KB	Output is correct
6	Correct	49 ms	12936 KB	Output is correct
7	Correct	59 ms	13144 KB	Output is correct
8	Correct	58 ms	14928 KB	Output is correct
9	Correct	60 ms	14412 KB	Output is correct
10	Correct	50 ms	13076 KB	Output is correct

Subtask #3

18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	108 ms	14992 KB	Output is correct
2	Correct	85 ms	14672 KB	Output is correct
3	Correct	83 ms	14932 KB	Output is correct
4	Correct	87 ms	14676 KB	Output is correct
5	Correct	113 ms	14960 KB	Output is correct
6	Correct	83 ms	14928 KB	Output is correct
7	Correct	84 ms	14928 KB	Output is correct
8	Correct	82 ms	15032 KB	Output is correct
9	Correct	90 ms	15188 KB	Output is correct
10	Correct	83 ms	14940 KB	Output is correct

Subtask #4

10.0 / 10.0

#	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	344 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	344 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct

Subtask #5

11.0 / 11.0

#	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	344 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	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	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	600 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	600 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	472 KB	Output is correct

Subtask #6

20.0 / 20.0

#	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	344 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	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	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	600 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	600 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	472 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	480 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	344 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct

Subtask #7

29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	76 ms	14464 KB	Output is correct
2	Correct	90 ms	14840 KB	Output is correct
3	Correct	58 ms	14928 KB	Output is correct
4	Correct	59 ms	14932 KB	Output is correct
5	Correct	57 ms	14928 KB	Output is correct
6	Correct	56 ms	14416 KB	Output is correct
7	Correct	57 ms	14424 KB	Output is correct
8	Correct	63 ms	14752 KB	Output is correct
9	Correct	56 ms	14660 KB	Output is correct
10	Correct	78 ms	14676 KB	Output is correct
11	Correct	49 ms	12880 KB	Output is correct
12	Correct	53 ms	13308 KB	Output is correct
13	Correct	49 ms	12888 KB	Output is correct
14	Correct	49 ms	12892 KB	Output is correct
15	Correct	58 ms	14424 KB	Output is correct
16	Correct	49 ms	12936 KB	Output is correct
17	Correct	59 ms	13144 KB	Output is correct
18	Correct	58 ms	14928 KB	Output is correct
19	Correct	60 ms	14412 KB	Output is correct
20	Correct	50 ms	13076 KB	Output is correct
21	Correct	108 ms	14992 KB	Output is correct
22	Correct	85 ms	14672 KB	Output is correct
23	Correct	83 ms	14932 KB	Output is correct
24	Correct	87 ms	14676 KB	Output is correct
25	Correct	113 ms	14960 KB	Output is correct
26	Correct	83 ms	14928 KB	Output is correct
27	Correct	84 ms	14928 KB	Output is correct
28	Correct	82 ms	15032 KB	Output is correct
29	Correct	90 ms	15188 KB	Output is correct
30	Correct	83 ms	14940 KB	Output is correct
31	Correct	0 ms	344 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	344 KB	Output is correct
35	Correct	0 ms	348 KB	Output is correct
36	Correct	0 ms	348 KB	Output is correct
37	Correct	0 ms	348 KB	Output is correct
38	Correct	0 ms	344 KB	Output is correct
39	Correct	1 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	1 ms	348 KB	Output is correct
43	Correct	0 ms	348 KB	Output is correct
44	Correct	0 ms	600 KB	Output is correct
45	Correct	0 ms	348 KB	Output is correct
46	Correct	0 ms	348 KB	Output is correct
47	Correct	1 ms	600 KB	Output is correct
48	Correct	1 ms	348 KB	Output is correct
49	Correct	0 ms	348 KB	Output is correct
50	Correct	0 ms	472 KB	Output is correct
51	Correct	1 ms	348 KB	Output is correct
52	Correct	1 ms	348 KB	Output is correct
53	Correct	1 ms	480 KB	Output is correct
54	Correct	1 ms	348 KB	Output is correct
55	Correct	1 ms	348 KB	Output is correct
56	Correct	1 ms	344 KB	Output is correct
57	Correct	1 ms	348 KB	Output is correct
58	Correct	1 ms	348 KB	Output is correct
59	Correct	1 ms	348 KB	Output is correct
60	Correct	1 ms	348 KB	Output is correct
61	Correct	113 ms	14676 KB	Output is correct
62	Correct	113 ms	15184 KB	Output is correct
63	Correct	96 ms	14672 KB	Output is correct
64	Correct	118 ms	14928 KB	Output is correct
65	Correct	117 ms	14936 KB	Output is correct
66	Correct	118 ms	14940 KB	Output is correct
67	Correct	117 ms	14856 KB	Output is correct
68	Correct	85 ms	14912 KB	Output is correct
69	Correct	87 ms	14760 KB	Output is correct
70	Correct	112 ms	14664 KB	Output is correct