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Submission #1115792

# Submission time Handle Problem Language Result Execution time Memory
1115792 2024-11-21T01:04:50 Z vjudge1 Feast (NOI19_feast) C++17
100 / 100
 90 ms 1776 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{a[0] - m, 1}, dp{max(cur, {})};
        for(int i = 1; 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 34 ms 1360 KB Output is correct
2 Correct 36 ms 1616 KB Output is correct
3 Correct 35 ms 1616 KB Output is correct
4 Correct 35 ms 1396 KB Output is correct
5 Correct 34 ms 1616 KB Output is correct
6 Correct 33 ms 1360 KB Output is correct
7 Correct 36 ms 1592 KB Output is correct
8 Correct 36 ms 1608 KB Output is correct
9 Correct 35 ms 1712 KB Output is correct
10 Correct 35 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 33 ms 1628 KB Output is correct
3 Correct 33 ms 1360 KB Output is correct
4 Correct 29 ms 1776 KB Output is correct
5 Correct 47 ms 1372 KB Output is correct
6 Correct 35 ms 1360 KB Output is correct
7 Correct 34 ms 1628 KB Output is correct
8 Correct 41 ms 1628 KB Output is correct
9 Correct 40 ms 1360 KB Output is correct
10 Correct 31 ms 1516 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 1608 KB Output is correct
2 Correct 62 ms 1616 KB Output is correct
3 Correct 61 ms 1616 KB Output is correct
4 Correct 59 ms 1352 KB Output is correct
5 Correct 60 ms 1616 KB Output is correct
6 Correct 62 ms 1612 KB Output is correct
7 Correct 60 ms 1616 KB Output is correct
8 Correct 59 ms 1616 KB Output is correct
9 Correct 62 ms 1628 KB Output is correct
10 Correct 71 ms 1672 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 504 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 504 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 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 504 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 336 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 504 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 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 504 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 336 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 512 KB Output is correct
22 Correct 2 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 1360 KB Output is correct
2 Correct 36 ms 1616 KB Output is correct
3 Correct 35 ms 1616 KB Output is correct
4 Correct 35 ms 1396 KB Output is correct
5 Correct 34 ms 1616 KB Output is correct
6 Correct 33 ms 1360 KB Output is correct
7 Correct 36 ms 1592 KB Output is correct
8 Correct 36 ms 1608 KB Output is correct
9 Correct 35 ms 1712 KB Output is correct
10 Correct 35 ms 1616 KB Output is correct
11 Correct 32 ms 1360 KB Output is correct
12 Correct 33 ms 1628 KB Output is correct
13 Correct 33 ms 1360 KB Output is correct
14 Correct 29 ms 1776 KB Output is correct
15 Correct 47 ms 1372 KB Output is correct
16 Correct 35 ms 1360 KB Output is correct
17 Correct 34 ms 1628 KB Output is correct
18 Correct 41 ms 1628 KB Output is correct
19 Correct 40 ms 1360 KB Output is correct
20 Correct 31 ms 1516 KB Output is correct
21 Correct 64 ms 1608 KB Output is correct
22 Correct 62 ms 1616 KB Output is correct
23 Correct 61 ms 1616 KB Output is correct
24 Correct 59 ms 1352 KB Output is correct
25 Correct 60 ms 1616 KB Output is correct
26 Correct 62 ms 1612 KB Output is correct
27 Correct 60 ms 1616 KB Output is correct
28 Correct 59 ms 1616 KB Output is correct
29 Correct 62 ms 1628 KB Output is correct
30 Correct 71 ms 1672 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 504 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 336 KB Output is correct
42 Correct 1 ms 336 KB Output is correct
43 Correct 1 ms 336 KB Output is correct
44 Correct 1 ms 336 KB Output is correct
45 Correct 1 ms 504 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 336 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 512 KB Output is correct
52 Correct 2 ms 336 KB Output is correct
53 Correct 1 ms 336 KB Output is correct
54 Correct 1 ms 336 KB Output is correct
55 Correct 1 ms 336 KB Output is correct
56 Correct 1 ms 336 KB Output is correct
57 Correct 1 ms 336 KB Output is correct
58 Correct 1 ms 336 KB Output is correct
59 Correct 1 ms 336 KB Output is correct
60 Correct 1 ms 336 KB Output is correct
61 Correct 84 ms 1360 KB Output is correct
62 Correct 83 ms 1608 KB Output is correct
63 Correct 68 ms 1360 KB Output is correct
64 Correct 86 ms 1616 KB Output is correct
65 Correct 89 ms 1624 KB Output is correct
66 Correct 89 ms 1352 KB Output is correct
67 Correct 90 ms 1360 KB Output is correct
68 Correct 63 ms 1616 KB Output is correct
69 Correct 61 ms 1360 KB Output is correct
70 Correct 62 ms 1360 KB Output is correct