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Submission #1115787

# Submission time Handle Problem Language Result Execution time Memory
1115787 2024-11-21T01:02:07 Z vjudge1 Feast (NOI19_feast) C++17
100 / 100
 109 ms 4680 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;

constexpr int N = int(3e5) + 5;
constexpr int MOD = int(1e9) + 7;

int a[N];

void solve(){
    int n, k;
    cin >> n >> k;
    for(int i{}; i < n; ++i){
        cin >> a[i];
    }
    ll l{}, r{ll(3e14)}, ans{};
    while(l <= r){
        ll m = l + r >> 1;
        pair<ll, int> cur{ll(-1e18), 0}, dp{0, 0};
        for(int i = 0; i < n; ++i){
            cur = max(pair{cur.first + a[i], cur.second}, {dp.first + a[i] - m, dp.second + 1});
            dp = max(dp, cur);
        }
        if(dp.second >= k || !m){
            ans = dp.first + k * m;
            l = m + 1;
        }
        else r = m - 1;
    }
    cout << ans;
}
int main(){
    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);
    ios::sync_with_stdio(0);    
    cin.tie(0);
 
    int t = 1;
    // cin >> t;
    for(int i = 1; i <= t; ++i) {
        solve();
    }
}

Compilation message

feast.cpp: In function 'void solve()':
feast.cpp:19:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   19 |         ll m = l + r >> 1;
      |                ~~^~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 1360 KB Output is correct
2 Correct 41 ms 1616 KB Output is correct
3 Correct 36 ms 1608 KB Output is correct
4 Correct 39 ms 3360 KB Output is correct
5 Correct 34 ms 1616 KB Output is correct
6 Correct 36 ms 2888 KB Output is correct
7 Correct 37 ms 1372 KB Output is correct
8 Correct 38 ms 3400 KB Output is correct
9 Correct 39 ms 2888 KB Output is correct
10 Correct 40 ms 1616 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 1360 KB Output is correct
2 Correct 32 ms 1616 KB Output is correct
3 Correct 32 ms 1360 KB Output is correct
4 Correct 33 ms 2128 KB Output is correct
5 Correct 40 ms 1360 KB Output is correct
6 Correct 35 ms 2128 KB Output is correct
7 Correct 36 ms 2376 KB Output is correct
8 Correct 45 ms 2964 KB Output is correct
9 Correct 46 ms 2896 KB Output is correct
10 Correct 34 ms 2384 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 1616 KB Output is correct
2 Correct 58 ms 1616 KB Output is correct
3 Correct 64 ms 1628 KB Output is correct
4 Correct 66 ms 1532 KB Output is correct
5 Correct 56 ms 1380 KB Output is correct
6 Correct 60 ms 3168 KB Output is correct
7 Correct 57 ms 1616 KB Output is correct
8 Correct 64 ms 3604 KB Output is correct
9 Correct 61 ms 3400 KB Output is correct
10 Correct 57 ms 1616 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 508 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 592 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 508 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 592 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 2 ms 336 KB Output is correct
24 Correct 2 ms 336 KB Output is correct
25 Correct 1 ms 492 KB Output is correct
26 Correct 2 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 484 KB Output is correct
29 Correct 2 ms 664 KB Output is correct
30 Correct 1 ms 480 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 1360 KB Output is correct
2 Correct 41 ms 1616 KB Output is correct
3 Correct 36 ms 1608 KB Output is correct
4 Correct 39 ms 3360 KB Output is correct
5 Correct 34 ms 1616 KB Output is correct
6 Correct 36 ms 2888 KB Output is correct
7 Correct 37 ms 1372 KB Output is correct
8 Correct 38 ms 3400 KB Output is correct
9 Correct 39 ms 2888 KB Output is correct
10 Correct 40 ms 1616 KB Output is correct
11 Correct 32 ms 1360 KB Output is correct
12 Correct 32 ms 1616 KB Output is correct
13 Correct 32 ms 1360 KB Output is correct
14 Correct 33 ms 2128 KB Output is correct
15 Correct 40 ms 1360 KB Output is correct
16 Correct 35 ms 2128 KB Output is correct
17 Correct 36 ms 2376 KB Output is correct
18 Correct 45 ms 2964 KB Output is correct
19 Correct 46 ms 2896 KB Output is correct
20 Correct 34 ms 2384 KB Output is correct
21 Correct 63 ms 1616 KB Output is correct
22 Correct 58 ms 1616 KB Output is correct
23 Correct 64 ms 1628 KB Output is correct
24 Correct 66 ms 1532 KB Output is correct
25 Correct 56 ms 1380 KB Output is correct
26 Correct 60 ms 3168 KB Output is correct
27 Correct 57 ms 1616 KB Output is correct
28 Correct 64 ms 3604 KB Output is correct
29 Correct 61 ms 3400 KB Output is correct
30 Correct 57 ms 1616 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 1 ms 508 KB Output is correct
42 Correct 1 ms 336 KB Output is correct
43 Correct 1 ms 592 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 1 ms 336 KB Output is correct
46 Correct 1 ms 336 KB Output is correct
47 Correct 1 ms 336 KB Output is correct
48 Correct 1 ms 468 KB Output is correct
49 Correct 1 ms 336 KB Output is correct
50 Correct 1 ms 336 KB Output is correct
51 Correct 1 ms 336 KB Output is correct
52 Correct 1 ms 336 KB Output is correct
53 Correct 2 ms 336 KB Output is correct
54 Correct 2 ms 336 KB Output is correct
55 Correct 1 ms 492 KB Output is correct
56 Correct 2 ms 336 KB Output is correct
57 Correct 1 ms 336 KB Output is correct
58 Correct 1 ms 484 KB Output is correct
59 Correct 2 ms 664 KB Output is correct
60 Correct 1 ms 480 KB Output is correct
61 Correct 92 ms 4424 KB Output is correct
62 Correct 88 ms 4680 KB Output is correct
63 Correct 76 ms 4400 KB Output is correct
64 Correct 100 ms 4424 KB Output is correct
65 Correct 103 ms 4680 KB Output is correct
66 Correct 109 ms 4416 KB Output is correct
67 Correct 94 ms 4432 KB Output is correct
68 Correct 65 ms 4568 KB Output is correct
69 Correct 62 ms 4424 KB Output is correct
70 Correct 61 ms 4464 KB Output is correct