답안 #1017306

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1017306	2024-07-09T07:19:12 Z	thdh__	Feast (NOI19_feast)	C++17	100 / 100	147 ms	12124 KB

feast

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx,avx2,fma")
#define ll long long
#define pb push_back
#define eb emplace_back
#define pu push
#define ins insert
#define bruh ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define ff(x,a,b,c) for (auto x=a;x<=b;x+=c)
#define fd(x,a,b,c) for (auto x=a;x>=b;x-=c)
#define int ll

using namespace std;
//mt19937 mt(chrono::steady_clock::now().time_since_epoch().count());

typedef pair<int, int> ii;
const int N = 3e5+5;
const int mod = 1e9+7;
const int INF = 1e18;
int power(int a,int b) {ll x = 1;if (a >= mod) a%=mod; while (b) {if (b & 1) x = x*a % mod;a = a*a % mod;b>>=1;}return x;} 

int n,k; 
int a[N];

pair<int,int> calc(int lmb)
{
	pair<int,int> dp[n][2];
	dp[0][0] = {0,0}; dp[0][1] = {a[0]-lmb,1};
	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][1].first+a[i],dp[i-1][1].second),make_pair(dp[i-1][0].first+a[i]-lmb,dp[i-1][0].second+1));
	}
	return max(dp[n-1][0],dp[n-1][1]);
}

void solve()
{
	cin>>n>>k;
	for (int i=0;i<n;i++) cin>>a[i];
	int l = 0,r = 1e18,ans = 0;
	while (l<=r)
	{
		int mid = (l+r)/2;
		auto tmp = calc(mid);
		if (tmp.second>=k) l = mid+1,ans = mid;
		else r = mid-1;
	}
	//cout<<ans<<endl;
	cout<<calc(ans).first+ans*k;
}

signed main()
{
	bruh
	//freopen("input.inp","r",stdin);
	//freopen("output.inp","w",stdout);
	int t = 1;
	//cin>>t;
	while (t--)
	{
		solve();
		cout<<"\n";
	}
}

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	107 ms	11612 KB	Output is correct
2	Correct	108 ms	11900 KB	Output is correct
3	Correct	111 ms	12116 KB	Output is correct
4	Correct	109 ms	11868 KB	Output is correct
5	Correct	108 ms	11988 KB	Output is correct
6	Correct	109 ms	11600 KB	Output is correct
7	Correct	106 ms	11652 KB	Output is correct
8	Correct	112 ms	12012 KB	Output is correct
9	Correct	110 ms	11868 KB	Output is correct
10	Correct	108 ms	11864 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	94 ms	11896 KB	Output is correct
2	Correct	99 ms	12124 KB	Output is correct
3	Correct	97 ms	11864 KB	Output is correct
4	Correct	98 ms	11868 KB	Output is correct
5	Correct	101 ms	11608 KB	Output is correct
6	Correct	112 ms	11856 KB	Output is correct
7	Correct	101 ms	12124 KB	Output is correct
8	Correct	102 ms	11864 KB	Output is correct
9	Correct	102 ms	11604 KB	Output is correct
10	Correct	101 ms	11868 KB	Output is correct

Subtask #3
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	112 ms	11868 KB	Output is correct
2	Correct	114 ms	11648 KB	Output is correct
3	Correct	116 ms	11856 KB	Output is correct
4	Correct	111 ms	11868 KB	Output is correct
5	Correct	114 ms	11900 KB	Output is correct
6	Correct	116 ms	11860 KB	Output is correct
7	Correct	113 ms	12112 KB	Output is correct
8	Correct	114 ms	11864 KB	Output is correct
9	Correct	118 ms	12112 KB	Output is correct
10	Correct	115 ms	12120 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	1 ms	348 KB	Output is correct
7	Correct	1 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	1 ms	344 KB	Output is correct

Subtask #5
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	1 ms	348 KB	Output is correct
7	Correct	1 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	1 ms	344 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	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct

Subtask #6
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	1 ms	348 KB	Output is correct
7	Correct	1 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	1 ms	344 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	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 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	348 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	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	2 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	107 ms	11612 KB	Output is correct
2	Correct	108 ms	11900 KB	Output is correct
3	Correct	111 ms	12116 KB	Output is correct
4	Correct	109 ms	11868 KB	Output is correct
5	Correct	108 ms	11988 KB	Output is correct
6	Correct	109 ms	11600 KB	Output is correct
7	Correct	106 ms	11652 KB	Output is correct
8	Correct	112 ms	12012 KB	Output is correct
9	Correct	110 ms	11868 KB	Output is correct
10	Correct	108 ms	11864 KB	Output is correct
11	Correct	94 ms	11896 KB	Output is correct
12	Correct	99 ms	12124 KB	Output is correct
13	Correct	97 ms	11864 KB	Output is correct
14	Correct	98 ms	11868 KB	Output is correct
15	Correct	101 ms	11608 KB	Output is correct
16	Correct	112 ms	11856 KB	Output is correct
17	Correct	101 ms	12124 KB	Output is correct
18	Correct	102 ms	11864 KB	Output is correct
19	Correct	102 ms	11604 KB	Output is correct
20	Correct	101 ms	11868 KB	Output is correct
21	Correct	112 ms	11868 KB	Output is correct
22	Correct	114 ms	11648 KB	Output is correct
23	Correct	116 ms	11856 KB	Output is correct
24	Correct	111 ms	11868 KB	Output is correct
25	Correct	114 ms	11900 KB	Output is correct
26	Correct	116 ms	11860 KB	Output is correct
27	Correct	113 ms	12112 KB	Output is correct
28	Correct	114 ms	11864 KB	Output is correct
29	Correct	118 ms	12112 KB	Output is correct
30	Correct	115 ms	12120 KB	Output is correct
31	Correct	1 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	348 KB	Output is correct
35	Correct	0 ms	348 KB	Output is correct
36	Correct	1 ms	348 KB	Output is correct
37	Correct	1 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	1 ms	344 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	348 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	348 KB	Output is correct
48	Correct	0 ms	348 KB	Output is correct
49	Correct	0 ms	348 KB	Output is correct
50	Correct	0 ms	348 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	348 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	348 KB	Output is correct
57	Correct	1 ms	348 KB	Output is correct
58	Correct	2 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	143 ms	11872 KB	Output is correct
62	Correct	131 ms	12116 KB	Output is correct
63	Correct	134 ms	11652 KB	Output is correct
64	Correct	147 ms	11908 KB	Output is correct
65	Correct	147 ms	12076 KB	Output is correct
66	Correct	144 ms	11864 KB	Output is correct
67	Correct	139 ms	11868 KB	Output is correct
68	Correct	123 ms	12088 KB	Output is correct
69	Correct	111 ms	11604 KB	Output is correct
70	Correct	111 ms	11604 KB	Output is correct

답안 #1017306

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