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Submission #944874

# Submission time Handle Problem Language Result Execution time Memory
944874 2024-03-13T07:12:52 Z Kaztaev_Alisher Feast (NOI19_feast) C++17
100 / 100
 117 ms 15304 KB 
#include <bits/stdc++.h>
 
#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define all(a) a.begin() , a.end()
#define F first
#define S second
 
using namespace std;
using ll = long long;
 
const ll N = 3e5+5 , inf = 2e9 + 7;
const ll INF = 300000000000000 ,  mod = 1e9+7 , P = 6547;	
 
ll n , k , a[N];
pair<ll,ll> dp[N][2];
ll get(ll md){
	dp[0][0] = {0,0};
	dp[0][1] = {-INF,0};
	for(ll i = 1; i <= n; i++){
		dp[i][0] = max(dp[i-1][0] , dp[i-1][1]);
		pair<ll,ll> c = {dp[i-1][0].F+md+a[i] , dp[i-1][0].S+1};
		pair<ll,ll> b = {dp[i-1][1].F+a[i] , dp[i-1][1].S};
		dp[i][1] = max(c , b);
	}
	return (max(dp[n][0],dp[n][1]).S >= k);
}
void solve(){
	cin >> n >> k;
	for(ll i = 1; i <= n; i++) cin >> a[i];
	ll l = -INF , r = 0 , res = 0;
	while(l <= r){
		ll md = (l+r) >> 1;
		if(get(md)){
			res = md;
			r = md-1;
		} else {
			l = md+1;
		}
	}
	get(res);
	cout << max(dp[n][1].F , dp[n][0].F)-res*k << "\n";
}
/*
*/
signed main(){
	ios;
	solve();
	return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 14676 KB Output is correct
2 Correct 74 ms 14788 KB Output is correct
3 Correct 67 ms 14932 KB Output is correct
4 Correct 74 ms 15304 KB Output is correct
5 Correct 65 ms 14804 KB Output is correct
6 Correct 69 ms 14916 KB Output is correct
7 Correct 64 ms 14740 KB Output is correct
8 Correct 65 ms 15012 KB Output is correct
9 Correct 68 ms 14924 KB Output is correct
10 Correct 65 ms 14932 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 13144 KB Output is correct
2 Correct 57 ms 13316 KB Output is correct
3 Correct 57 ms 13148 KB Output is correct
4 Correct 59 ms 13148 KB Output is correct
5 Correct 62 ms 14680 KB Output is correct
6 Correct 54 ms 13148 KB Output is correct
7 Correct 58 ms 13096 KB Output is correct
8 Correct 64 ms 14984 KB Output is correct
9 Correct 64 ms 14684 KB Output is correct
10 Correct 65 ms 13292 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 14936 KB Output is correct
2 Correct 82 ms 15112 KB Output is correct
3 Correct 84 ms 15184 KB Output is correct
4 Correct 82 ms 15004 KB Output is correct
5 Correct 83 ms 14940 KB Output is correct
6 Correct 84 ms 15196 KB Output is correct
7 Correct 83 ms 15220 KB Output is correct
8 Correct 82 ms 15164 KB Output is correct
9 Correct 84 ms 15228 KB Output is correct
10 Correct 84 ms 15224 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 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 1 ms 2516 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2400 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 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 1 ms 2516 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2400 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 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 2516 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 2 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

# Verdict Execution time Memory Grader output
1 Correct 64 ms 14676 KB Output is correct
2 Correct 74 ms 14788 KB Output is correct
3 Correct 67 ms 14932 KB Output is correct
4 Correct 74 ms 15304 KB Output is correct
5 Correct 65 ms 14804 KB Output is correct
6 Correct 69 ms 14916 KB Output is correct
7 Correct 64 ms 14740 KB Output is correct
8 Correct 65 ms 15012 KB Output is correct
9 Correct 68 ms 14924 KB Output is correct
10 Correct 65 ms 14932 KB Output is correct
11 Correct 56 ms 13144 KB Output is correct
12 Correct 57 ms 13316 KB Output is correct
13 Correct 57 ms 13148 KB Output is correct
14 Correct 59 ms 13148 KB Output is correct
15 Correct 62 ms 14680 KB Output is correct
16 Correct 54 ms 13148 KB Output is correct
17 Correct 58 ms 13096 KB Output is correct
18 Correct 64 ms 14984 KB Output is correct
19 Correct 64 ms 14684 KB Output is correct
20 Correct 65 ms 13292 KB Output is correct
21 Correct 83 ms 14936 KB Output is correct
22 Correct 82 ms 15112 KB Output is correct
23 Correct 84 ms 15184 KB Output is correct
24 Correct 82 ms 15004 KB Output is correct
25 Correct 83 ms 14940 KB Output is correct
26 Correct 84 ms 15196 KB Output is correct
27 Correct 83 ms 15220 KB Output is correct
28 Correct 82 ms 15164 KB Output is correct
29 Correct 84 ms 15228 KB Output is correct
30 Correct 84 ms 15224 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 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 1 ms 2516 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2400 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2396 KB Output is correct
50 Correct 1 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 2516 KB Output is correct
55 Correct 1 ms 2396 KB Output is correct
56 Correct 2 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 114 ms 15108 KB Output is correct
62 Correct 114 ms 15236 KB Output is correct
63 Correct 95 ms 14940 KB Output is correct
64 Correct 115 ms 15188 KB Output is correct
65 Correct 116 ms 15188 KB Output is correct
66 Correct 117 ms 15176 KB Output is correct
67 Correct 114 ms 15100 KB Output is correct
68 Correct 85 ms 15124 KB Output is correct
69 Correct 81 ms 14932 KB Output is correct
70 Correct 81 ms 14940 KB Output is correct