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Submission #1116454

# Submission time Handle Problem Language Result Execution time Memory
1116454 2024-11-21T16:46:17 Z Hamed_Ghaffari Feast (NOI19_feast) C++17
59 / 100
 86 ms 4596 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(r).X + r*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
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 52 ms 3144 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 2576 KB Output is correct
2 Correct 44 ms 2640 KB Output is correct
3 Correct 42 ms 2640 KB Output is correct
4 Incorrect 42 ms 2640 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 4432 KB Output is correct
2 Correct 86 ms 3572 KB Output is correct
3 Correct 72 ms 4432 KB Output is correct
4 Correct 71 ms 4464 KB Output is correct
5 Correct 71 ms 4424 KB Output is correct
6 Correct 71 ms 4432 KB Output is correct
7 Correct 74 ms 4432 KB Output is correct
8 Correct 78 ms 4424 KB Output is correct
9 Correct 75 ms 4424 KB Output is correct
10 Correct 73 ms 4596 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 504 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 592 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 504 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 592 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 504 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 592 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 2 ms 336 KB Output is correct
22 Correct 2 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 336 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 336 KB Output is correct
29 Correct 1 ms 504 KB Output is correct
30 Correct 1 ms 336 KB Output is correct

Subtask #7
0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 52 ms 3144 KB Output isn't correct
2 Halted 0 ms 0 KB -