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Submission #1116457

# Submission time Handle Problem Language Result Execution time Memory
1116457 2024-11-21T16:48:18 Z Hamed_Ghaffari Feast (NOI19_feast) C++17
100 / 100
 146 ms 4684 KB 
#include <bits/stdc++.h>
using namespace std;

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

#define X               first
#define Y               second
#define SZ(x)           int(x.size())
#define all(x)          x.begin(), x.end()
#define mins(a,b)       (a = min(a,b))
#define maxs(a,b)       (a = max(a,b))
#define pb              push_back
#define Mp              make_pair
#define lc              id<<1
#define rc              lc|1
// #define mid             ((l+r)/2)
mt19937_64              rng(chrono::steady_clock::now().time_since_epoch().count());

const ll  INF = 1e9 + 23;
const ll  MOD = 1e9 + 7;
const int MXN = 3e5 + 5;
const int LOG = 23;

int n, k, a[MXN];

pll calc(ll lmb) {
    pll mx = Mp(0, 0), ans = mx;
    ll sum=0;
    for(int i=1; i<=n; i++) {
        sum += a[i];
        maxs(ans, Mp(mx.X+sum-lmb, mx.Y+1));
        maxs(mx, Mp(ans.X-sum, ans.Y));
    }
    return ans;
}

void Main() {
    cin >> n >> k;
    for(int i=1; i<=n; i++) cin >> a[i];
    // ll l=-1, r=1e18;
    // while(r-l>1)
    //     (calc(mid).Y>=k ? l : r) = mid;
    // cout << calc(l).X + l*k << '\n';
    ll lo = 0;
	ll hi = 1e18;
	while (lo < hi) {
		ll mid = (lo + hi + 1) / 2;
		calc(mid).second >= k ? lo = mid : hi = mid - 1;
	}

	cout << calc(lo).first + lo * k << endl;
}

int32_t main() {
    cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
    int T = 1;
    // cin >> T;
    while(T--) Main();
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 1360 KB Output is correct
2 Correct 64 ms 4368 KB Output is correct
3 Correct 49 ms 4432 KB Output is correct
4 Correct 50 ms 4600 KB Output is correct
5 Correct 50 ms 4432 KB Output is correct
6 Correct 49 ms 4260 KB Output is correct
7 Correct 47 ms 4176 KB Output is correct
8 Correct 48 ms 4432 KB Output is correct
9 Correct 64 ms 4208 KB Output is correct
10 Correct 48 ms 4152 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 1608 KB Output is correct
2 Correct 43 ms 1624 KB Output is correct
3 Correct 43 ms 1360 KB Output is correct
4 Correct 39 ms 1616 KB Output is correct
5 Correct 51 ms 4020 KB Output is correct
6 Correct 43 ms 2568 KB Output is correct
7 Correct 47 ms 2640 KB Output is correct
8 Correct 53 ms 4168 KB Output is correct
9 Correct 53 ms 4176 KB Output is correct
10 Correct 42 ms 2640 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 107 ms 1616 KB Output is correct
2 Correct 75 ms 1360 KB Output is correct
3 Correct 97 ms 1608 KB Output is correct
4 Correct 75 ms 1360 KB Output is correct
5 Correct 69 ms 1492 KB Output is correct
6 Correct 70 ms 1616 KB Output is correct
7 Correct 71 ms 1616 KB Output is correct
8 Correct 69 ms 1616 KB Output is correct
9 Correct 83 ms 1616 KB Output is correct
10 Correct 73 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 504 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 504 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 444 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 504 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 504 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 504 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 444 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 504 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 504 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 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 2 ms 336 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 2 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 42 ms 1360 KB Output is correct
2 Correct 64 ms 4368 KB Output is correct
3 Correct 49 ms 4432 KB Output is correct
4 Correct 50 ms 4600 KB Output is correct
5 Correct 50 ms 4432 KB Output is correct
6 Correct 49 ms 4260 KB Output is correct
7 Correct 47 ms 4176 KB Output is correct
8 Correct 48 ms 4432 KB Output is correct
9 Correct 64 ms 4208 KB Output is correct
10 Correct 48 ms 4152 KB Output is correct
11 Correct 42 ms 1608 KB Output is correct
12 Correct 43 ms 1624 KB Output is correct
13 Correct 43 ms 1360 KB Output is correct
14 Correct 39 ms 1616 KB Output is correct
15 Correct 51 ms 4020 KB Output is correct
16 Correct 43 ms 2568 KB Output is correct
17 Correct 47 ms 2640 KB Output is correct
18 Correct 53 ms 4168 KB Output is correct
19 Correct 53 ms 4176 KB Output is correct
20 Correct 42 ms 2640 KB Output is correct
21 Correct 107 ms 1616 KB Output is correct
22 Correct 75 ms 1360 KB Output is correct
23 Correct 97 ms 1608 KB Output is correct
24 Correct 75 ms 1360 KB Output is correct
25 Correct 69 ms 1492 KB Output is correct
26 Correct 70 ms 1616 KB Output is correct
27 Correct 71 ms 1616 KB Output is correct
28 Correct 69 ms 1616 KB Output is correct
29 Correct 83 ms 1616 KB Output is correct
30 Correct 73 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 504 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 444 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 504 KB Output is correct
49 Correct 1 ms 336 KB Output is correct
50 Correct 1 ms 504 KB Output is correct
51 Correct 1 ms 336 KB Output is correct
52 Correct 1 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 2 ms 336 KB Output is correct
57 Correct 2 ms 336 KB Output is correct
58 Correct 2 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 121 ms 4432 KB Output is correct
62 Correct 107 ms 4684 KB Output is correct
63 Correct 89 ms 4432 KB Output is correct
64 Correct 146 ms 4400 KB Output is correct
65 Correct 116 ms 4424 KB Output is correct
66 Correct 118 ms 4676 KB Output is correct
67 Correct 136 ms 4424 KB Output is correct
68 Correct 90 ms 4448 KB Output is correct
69 Correct 75 ms 4432 KB Output is correct
70 Correct 106 ms 4432 KB Output is correct