oj.uz

Submission #1017306

# Submission time Handle Problem Language Result Execution time Memory
1017306 2024-07-09T07:19:12 Z thdh__ Feast (NOI19_feast) C++17
100 / 100
 147 ms 12124 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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