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Submission #950607

# Submission time Handle Problem Language Result Execution time Memory
950607 2024-03-20T13:39:34 Z VMaksimoski008 Feast (NOI19_feast) C++14
100 / 100
 321 ms 26952 KB 
#include <bits/stdc++.h>

#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define int long long

using namespace std;

using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

int32_t main() {
    int n, K;
    cin >> n >> K;

    vector<int> v(n+1);
    for(int i=1; i<=n; i++) cin >> v[i];

    ll l=0, r=1e15, ans=0;
    vector<vector<pll> > dp(n+1, vector<pll>(2));

    auto check = [&](int mid) {
        for(int i=0; i<=n; i++)
            for(int j=0; j<2; j++) dp[i][j] = {0, 0};
        dp[0][1] = {-1e18, 0};

        for(int i=1; i<=n; i++) {
            dp[i][0] = max(dp[i-1][0], dp[i-1][1]);
            dp[i][1] = max(pll{ dp[i-1][1].first + v[i], dp[i-1][1].second }, pll{ dp[i-1][0].first + v[i] - mid, dp[i-1][0].second + 1 });
        }

        return max(dp[n][0], dp[n][1]).second;
    };

    while(l <= r) {
        ll mid = (l + r) / 2;
        if(check(mid) >= K) ans = mid, l = mid + 1;
        else r = mid - 1;
    }

    check(ans);

    cout << max(dp[n][0], dp[n][1]).first + K * ans << '\n';
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 215 ms 23172 KB Output is correct
2 Correct 236 ms 23612 KB Output is correct
3 Correct 250 ms 23872 KB Output is correct
4 Correct 229 ms 23636 KB Output is correct
5 Correct 232 ms 23580 KB Output is correct
6 Correct 217 ms 23192 KB Output is correct
7 Correct 225 ms 23180 KB Output is correct
8 Correct 232 ms 23496 KB Output is correct
9 Correct 227 ms 23124 KB Output is correct
10 Correct 234 ms 23736 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 190 ms 23336 KB Output is correct
2 Correct 202 ms 23848 KB Output is correct
3 Correct 187 ms 23304 KB Output is correct
4 Correct 186 ms 23480 KB Output is correct
5 Correct 237 ms 26008 KB Output is correct
6 Correct 196 ms 24396 KB Output is correct
7 Correct 194 ms 25036 KB Output is correct
8 Correct 240 ms 26560 KB Output is correct
9 Correct 224 ms 25920 KB Output is correct
10 Correct 181 ms 24864 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 235 ms 23496 KB Output is correct
2 Correct 240 ms 23192 KB Output is correct
3 Correct 244 ms 23568 KB Output is correct
4 Correct 241 ms 23340 KB Output is correct
5 Correct 275 ms 23476 KB Output is correct
6 Correct 246 ms 23500 KB Output is correct
7 Correct 256 ms 23792 KB Output is correct
8 Correct 245 ms 23492 KB Output is correct
9 Correct 258 ms 23632 KB Output is correct
10 Correct 243 ms 23760 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 1 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 348 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

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 1 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 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 1 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 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 2 ms 588 KB Output is correct
24 Correct 2 ms 348 KB Output is correct
25 Correct 2 ms 348 KB Output is correct
26 Correct 2 ms 348 KB Output is correct
27 Correct 2 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 2 ms 348 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 215 ms 23172 KB Output is correct
2 Correct 236 ms 23612 KB Output is correct
3 Correct 250 ms 23872 KB Output is correct
4 Correct 229 ms 23636 KB Output is correct
5 Correct 232 ms 23580 KB Output is correct
6 Correct 217 ms 23192 KB Output is correct
7 Correct 225 ms 23180 KB Output is correct
8 Correct 232 ms 23496 KB Output is correct
9 Correct 227 ms 23124 KB Output is correct
10 Correct 234 ms 23736 KB Output is correct
11 Correct 190 ms 23336 KB Output is correct
12 Correct 202 ms 23848 KB Output is correct
13 Correct 187 ms 23304 KB Output is correct
14 Correct 186 ms 23480 KB Output is correct
15 Correct 237 ms 26008 KB Output is correct
16 Correct 196 ms 24396 KB Output is correct
17 Correct 194 ms 25036 KB Output is correct
18 Correct 240 ms 26560 KB Output is correct
19 Correct 224 ms 25920 KB Output is correct
20 Correct 181 ms 24864 KB Output is correct
21 Correct 235 ms 23496 KB Output is correct
22 Correct 240 ms 23192 KB Output is correct
23 Correct 244 ms 23568 KB Output is correct
24 Correct 241 ms 23340 KB Output is correct
25 Correct 275 ms 23476 KB Output is correct
26 Correct 246 ms 23500 KB Output is correct
27 Correct 256 ms 23792 KB Output is correct
28 Correct 245 ms 23492 KB Output is correct
29 Correct 258 ms 23632 KB Output is correct
30 Correct 243 ms 23760 KB Output is correct
31 Correct 1 ms 348 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 1 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 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 2 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 2 ms 588 KB Output is correct
54 Correct 2 ms 348 KB Output is correct
55 Correct 2 ms 348 KB Output is correct
56 Correct 2 ms 348 KB Output is correct
57 Correct 2 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 2 ms 348 KB Output is correct
61 Correct 264 ms 26196 KB Output is correct
62 Correct 267 ms 26952 KB Output is correct
63 Correct 268 ms 26208 KB Output is correct
64 Correct 303 ms 26748 KB Output is correct
65 Correct 320 ms 26732 KB Output is correct
66 Correct 321 ms 26664 KB Output is correct
67 Correct 266 ms 26256 KB Output is correct
68 Correct 245 ms 26544 KB Output is correct
69 Correct 241 ms 26240 KB Output is correct
70 Correct 237 ms 26120 KB Output is correct