답안 #1017566

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1017566	2024-07-09T08:54:01 Z	vjudge1	Feast (NOI19_feast)	C++17	100 / 100	121 ms	12376 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 = 3e5 + 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	51 ms	12124 KB	Output is correct
2	Correct	54 ms	12116 KB	Output is correct
3	Correct	87 ms	12176 KB	Output is correct
4	Correct	53 ms	12120 KB	Output is correct
5	Correct	61 ms	12112 KB	Output is correct
6	Correct	52 ms	12120 KB	Output is correct
7	Correct	56 ms	11868 KB	Output is correct
8	Correct	58 ms	12124 KB	Output is correct
9	Correct	55 ms	11868 KB	Output is correct
10	Correct	57 ms	11920 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	48 ms	12124 KB	Output is correct
2	Correct	74 ms	12172 KB	Output is correct
3	Correct	48 ms	11868 KB	Output is correct
4	Correct	48 ms	11832 KB	Output is correct
5	Correct	56 ms	11608 KB	Output is correct
6	Correct	51 ms	11868 KB	Output is correct
7	Correct	55 ms	12120 KB	Output is correct
8	Correct	64 ms	11980 KB	Output is correct
9	Correct	56 ms	11600 KB	Output is correct
10	Correct	48 ms	12088 KB	Output is correct

Subtask #3
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	87 ms	11868 KB	Output is correct
2	Correct	111 ms	11856 KB	Output is correct
3	Correct	82 ms	11776 KB	Output is correct
4	Correct	100 ms	11860 KB	Output is correct
5	Correct	80 ms	11968 KB	Output is correct
6	Correct	81 ms	12124 KB	Output is correct
7	Correct	91 ms	12376 KB	Output is correct
8	Correct	78 ms	12140 KB	Output is correct
9	Correct	82 ms	11984 KB	Output is correct
10	Correct	80 ms	11976 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2396 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	0 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	0 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct

Subtask #5
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2396 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	0 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	0 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	0 ms	2408 KB	Output is correct
16	Correct	0 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2648 KB	Output is correct
19	Correct	0 ms	2396 KB	Output is correct
20	Correct	0 ms	2396 KB	Output is correct

Subtask #6
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2396 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	0 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	0 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	0 ms	2408 KB	Output is correct
16	Correct	0 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2648 KB	Output is correct
19	Correct	0 ms	2396 KB	Output is correct
20	Correct	0 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2396 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2396 KB	Output is correct
29	Correct	1 ms	2396 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct

Subtask #7
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	51 ms	12124 KB	Output is correct
2	Correct	54 ms	12116 KB	Output is correct
3	Correct	87 ms	12176 KB	Output is correct
4	Correct	53 ms	12120 KB	Output is correct
5	Correct	61 ms	12112 KB	Output is correct
6	Correct	52 ms	12120 KB	Output is correct
7	Correct	56 ms	11868 KB	Output is correct
8	Correct	58 ms	12124 KB	Output is correct
9	Correct	55 ms	11868 KB	Output is correct
10	Correct	57 ms	11920 KB	Output is correct
11	Correct	48 ms	12124 KB	Output is correct
12	Correct	74 ms	12172 KB	Output is correct
13	Correct	48 ms	11868 KB	Output is correct
14	Correct	48 ms	11832 KB	Output is correct
15	Correct	56 ms	11608 KB	Output is correct
16	Correct	51 ms	11868 KB	Output is correct
17	Correct	55 ms	12120 KB	Output is correct
18	Correct	64 ms	11980 KB	Output is correct
19	Correct	56 ms	11600 KB	Output is correct
20	Correct	48 ms	12088 KB	Output is correct
21	Correct	87 ms	11868 KB	Output is correct
22	Correct	111 ms	11856 KB	Output is correct
23	Correct	82 ms	11776 KB	Output is correct
24	Correct	100 ms	11860 KB	Output is correct
25	Correct	80 ms	11968 KB	Output is correct
26	Correct	81 ms	12124 KB	Output is correct
27	Correct	91 ms	12376 KB	Output is correct
28	Correct	78 ms	12140 KB	Output is correct
29	Correct	82 ms	11984 KB	Output is correct
30	Correct	80 ms	11976 KB	Output is correct
31	Correct	0 ms	2396 KB	Output is correct
32	Correct	0 ms	2396 KB	Output is correct
33	Correct	0 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	0 ms	2396 KB	Output is correct
36	Correct	0 ms	2396 KB	Output is correct
37	Correct	0 ms	2396 KB	Output is correct
38	Correct	0 ms	2396 KB	Output is correct
39	Correct	0 ms	2396 KB	Output is correct
40	Correct	1 ms	2396 KB	Output is correct
41	Correct	1 ms	2396 KB	Output is correct
42	Correct	0 ms	2396 KB	Output is correct
43	Correct	1 ms	2396 KB	Output is correct
44	Correct	0 ms	2396 KB	Output is correct
45	Correct	0 ms	2408 KB	Output is correct
46	Correct	0 ms	2396 KB	Output is correct
47	Correct	1 ms	2396 KB	Output is correct
48	Correct	1 ms	2648 KB	Output is correct
49	Correct	0 ms	2396 KB	Output is correct
50	Correct	0 ms	2396 KB	Output is correct
51	Correct	1 ms	2396 KB	Output is correct
52	Correct	1 ms	2396 KB	Output is correct
53	Correct	1 ms	2396 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	1 ms	2396 KB	Output is correct
56	Correct	1 ms	2396 KB	Output is correct
57	Correct	1 ms	2396 KB	Output is correct
58	Correct	1 ms	2396 KB	Output is correct
59	Correct	1 ms	2396 KB	Output is correct
60	Correct	1 ms	2396 KB	Output is correct
61	Correct	109 ms	12120 KB	Output is correct
62	Correct	105 ms	12112 KB	Output is correct
63	Correct	92 ms	12124 KB	Output is correct
64	Correct	110 ms	12116 KB	Output is correct
65	Correct	113 ms	12112 KB	Output is correct
66	Correct	115 ms	12112 KB	Output is correct
67	Correct	121 ms	11864 KB	Output is correct
68	Correct	91 ms	12124 KB	Output is correct
69	Correct	77 ms	12116 KB	Output is correct
70	Correct	77 ms	11876 KB	Output is correct

답안 #1017566

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 8.0 / 8.0

Subtask #3 18.0 / 18.0

Subtask #4 10.0 / 10.0

Subtask #5 11.0 / 11.0

Subtask #6 20.0 / 20.0

Subtask #7 29.0 / 29.0

Subtask #1
4.0 / 4.0

Subtask #2
8.0 / 8.0

Subtask #3
18.0 / 18.0

Subtask #4
10.0 / 10.0

Subtask #5
11.0 / 11.0

Subtask #6
20.0 / 20.0

Subtask #7
29.0 / 29.0