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Submission #1116465

# Submission time Handle Problem Language Result Execution time Memory
1116465 2024-11-21T16:52:28 Z Hamed_Ghaffari Feast (NOI19_feast) C++17
100 / 100
 117 ms 3420 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=0, r=1e18;
    while(r-l>1)
        (calc(mid).Y>=k ? l : r) = mid;
    cout << calc(l).X + l*k << '\n';
}
 
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 43 ms 2528 KB Output is correct
2 Correct 44 ms 3408 KB Output is correct
3 Correct 45 ms 1616 KB Output is correct
4 Correct 44 ms 3420 KB Output is correct
5 Correct 44 ms 3408 KB Output is correct
6 Correct 44 ms 1544 KB Output is correct
7 Correct 47 ms 1360 KB Output is correct
8 Correct 45 ms 3216 KB Output is correct
9 Correct 56 ms 3048 KB Output is correct
10 Correct 47 ms 3152 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 1360 KB Output is correct
2 Correct 47 ms 2384 KB Output is correct
3 Correct 45 ms 1360 KB Output is correct
4 Correct 45 ms 1648 KB Output is correct
5 Correct 52 ms 3124 KB Output is correct
6 Correct 44 ms 2128 KB Output is correct
7 Correct 47 ms 1616 KB Output is correct
8 Correct 50 ms 1616 KB Output is correct
9 Correct 50 ms 3120 KB Output is correct
10 Correct 40 ms 2384 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 1608 KB Output is correct
2 Correct 74 ms 2736 KB Output is correct
3 Correct 99 ms 3412 KB Output is correct
4 Correct 75 ms 3400 KB Output is correct
5 Correct 72 ms 3364 KB Output is correct
6 Correct 70 ms 1616 KB Output is correct
7 Correct 78 ms 1616 KB Output is correct
8 Correct 69 ms 1616 KB Output is correct
9 Correct 73 ms 3400 KB Output is correct
10 Correct 69 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 504 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 508 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 504 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 508 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 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 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 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 504 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 508 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 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 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 336 KB Output is correct
22 Correct 1 ms 504 KB Output is correct
23 Correct 2 ms 500 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 384 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 43 ms 2528 KB Output is correct
2 Correct 44 ms 3408 KB Output is correct
3 Correct 45 ms 1616 KB Output is correct
4 Correct 44 ms 3420 KB Output is correct
5 Correct 44 ms 3408 KB Output is correct
6 Correct 44 ms 1544 KB Output is correct
7 Correct 47 ms 1360 KB Output is correct
8 Correct 45 ms 3216 KB Output is correct
9 Correct 56 ms 3048 KB Output is correct
10 Correct 47 ms 3152 KB Output is correct
11 Correct 42 ms 1360 KB Output is correct
12 Correct 47 ms 2384 KB Output is correct
13 Correct 45 ms 1360 KB Output is correct
14 Correct 45 ms 1648 KB Output is correct
15 Correct 52 ms 3124 KB Output is correct
16 Correct 44 ms 2128 KB Output is correct
17 Correct 47 ms 1616 KB Output is correct
18 Correct 50 ms 1616 KB Output is correct
19 Correct 50 ms 3120 KB Output is correct
20 Correct 40 ms 2384 KB Output is correct
21 Correct 69 ms 1608 KB Output is correct
22 Correct 74 ms 2736 KB Output is correct
23 Correct 99 ms 3412 KB Output is correct
24 Correct 75 ms 3400 KB Output is correct
25 Correct 72 ms 3364 KB Output is correct
26 Correct 70 ms 1616 KB Output is correct
27 Correct 78 ms 1616 KB Output is correct
28 Correct 69 ms 1616 KB Output is correct
29 Correct 73 ms 3400 KB Output is correct
30 Correct 69 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 504 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 508 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 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 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 336 KB Output is correct
52 Correct 1 ms 504 KB Output is correct
53 Correct 2 ms 500 KB Output is correct
54 Correct 1 ms 336 KB Output is correct
55 Correct 1 ms 384 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 102 ms 1360 KB Output is correct
62 Correct 111 ms 3408 KB Output is correct
63 Correct 82 ms 3152 KB Output is correct
64 Correct 110 ms 3408 KB Output is correct
65 Correct 104 ms 1620 KB Output is correct
66 Correct 117 ms 3188 KB Output is correct
67 Correct 107 ms 1360 KB Output is correct
68 Correct 79 ms 1616 KB Output is correct
69 Correct 70 ms 1360 KB Output is correct
70 Correct 70 ms 3152 KB Output is correct