oj.uz

Submission #897777

# Submission time Handle Problem Language Result Execution time Memory
897777 2024-01-03T16:31:26 Z vjudge1 Feast (NOI19_feast) C++17
100 / 100
 103 ms 10568 KB 
/*
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,fma,bmi,bmi2,sse4.2,popcnt,lzcnt")
*/

#include <bits/stdc++.h>
#define taskname ""
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define i64 long long
#define int long long
#define pb push_back
#define ff first
#define ss second
#define isz(x) (int)x.size()
using namespace std;

const int mxN = 3e5 + 5;
const int mod = 1e9 + 7;
const i64 oo = 1e18;

int n, k;
i64 a[mxN];
pair<int, int> dp[mxN];

pair<int, int> calc(i64 delta) {
    pair<int, int> mx = {0, 0}, res = {0, 0};
    for (int i = 1; i <= n; ++i) {
        int tmp = mx.ff + a[i] + delta;
        dp[i] = max(dp[i - 1], pair{tmp, mx.ss - 1});
        mx = max(mx, pair{dp[i].ff - a[i], dp[i].ss});
        res = max(res, dp[i]);
    }
    return res;
}

void solve() {
    cin >> n >> k;
    for (int i = 1; i <= n; ++i) {
        cin >> a[i];
        a[i] += a[i - 1];
    }
    i64 l = -1e12, r = 0;
    while (l < r) {
        int mid = (l + r + 1) >> 1;
        if (-calc(mid).ss <= k) l = mid;
        else r = mid - 1;
    }
    auto res = calc(l);
    cout << res.ff + res.ss * l << endl;
}

signed main() {

#ifndef CDuongg
    if(fopen(taskname".inp", "r"))
        assert(freopen(taskname".inp", "r", stdin)), assert(freopen(taskname".out", "w", stdout));
#else
    freopen("bai3.inp", "r", stdin);
    freopen("bai3.out", "w", stdout);
    auto start = chrono::high_resolution_clock::now();
#endif

    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int t = 1; //cin >> t;
    while(t--) solve();

#ifdef CDuongg
   auto end = chrono::high_resolution_clock::now();
   cout << "\n"; for(int i = 1; i <= 100; ++i) cout << '=';
   cout << "\nExecution time: " << chrono::duration_cast<chrono::milliseconds> (end - start).count() << "[ms]" << endl;
   cout << "Check array size pls sir" << endl;
#endif

}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 7260 KB Output is correct
2 Correct 52 ms 7512 KB Output is correct
3 Correct 46 ms 7272 KB Output is correct
4 Correct 46 ms 7260 KB Output is correct
5 Correct 48 ms 7248 KB Output is correct
6 Correct 44 ms 7380 KB Output is correct
7 Correct 48 ms 7380 KB Output is correct
8 Correct 48 ms 7260 KB Output is correct
9 Correct 52 ms 7256 KB Output is correct
10 Correct 46 ms 7488 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 7256 KB Output is correct
2 Correct 40 ms 8540 KB Output is correct
3 Correct 39 ms 8540 KB Output is correct
4 Correct 39 ms 8572 KB Output is correct
5 Correct 44 ms 10064 KB Output is correct
6 Correct 38 ms 8536 KB Output is correct
7 Correct 40 ms 8540 KB Output is correct
8 Correct 46 ms 10324 KB Output is correct
9 Correct 44 ms 10076 KB Output is correct
10 Correct 39 ms 8540 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 7456 KB Output is correct
2 Correct 64 ms 10376 KB Output is correct
3 Correct 63 ms 10468 KB Output is correct
4 Correct 62 ms 10324 KB Output is correct
5 Correct 65 ms 10320 KB Output is correct
6 Correct 71 ms 10504 KB Output is correct
7 Correct 64 ms 10324 KB Output is correct
8 Correct 62 ms 10320 KB Output is correct
9 Correct 62 ms 10544 KB Output is correct
10 Correct 70 ms 10332 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2532 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 7260 KB Output is correct
2 Correct 52 ms 7512 KB Output is correct
3 Correct 46 ms 7272 KB Output is correct
4 Correct 46 ms 7260 KB Output is correct
5 Correct 48 ms 7248 KB Output is correct
6 Correct 44 ms 7380 KB Output is correct
7 Correct 48 ms 7380 KB Output is correct
8 Correct 48 ms 7260 KB Output is correct
9 Correct 52 ms 7256 KB Output is correct
10 Correct 46 ms 7488 KB Output is correct
11 Correct 42 ms 7256 KB Output is correct
12 Correct 40 ms 8540 KB Output is correct
13 Correct 39 ms 8540 KB Output is correct
14 Correct 39 ms 8572 KB Output is correct
15 Correct 44 ms 10064 KB Output is correct
16 Correct 38 ms 8536 KB Output is correct
17 Correct 40 ms 8540 KB Output is correct
18 Correct 46 ms 10324 KB Output is correct
19 Correct 44 ms 10076 KB Output is correct
20 Correct 39 ms 8540 KB Output is correct
21 Correct 67 ms 7456 KB Output is correct
22 Correct 64 ms 10376 KB Output is correct
23 Correct 63 ms 10468 KB Output is correct
24 Correct 62 ms 10324 KB Output is correct
25 Correct 65 ms 10320 KB Output is correct
26 Correct 71 ms 10504 KB Output is correct
27 Correct 64 ms 10324 KB Output is correct
28 Correct 62 ms 10320 KB Output is correct
29 Correct 62 ms 10544 KB Output is correct
30 Correct 70 ms 10332 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 0 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2392 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 0 ms 2396 KB Output is correct
49 Correct 1 ms 2396 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 1 ms 2396 KB Output is correct
52 Correct 1 ms 2396 KB Output is correct
53 Correct 1 ms 2396 KB Output is correct
54 Correct 1 ms 2532 KB Output is correct
55 Correct 1 ms 2396 KB Output is correct
56 Correct 1 ms 2396 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 1 ms 2392 KB Output is correct
59 Correct 1 ms 2396 KB Output is correct
60 Correct 1 ms 2396 KB Output is correct
61 Correct 94 ms 10332 KB Output is correct
62 Correct 94 ms 10324 KB Output is correct
63 Correct 75 ms 10320 KB Output is correct
64 Correct 94 ms 10320 KB Output is correct
65 Correct 96 ms 10320 KB Output is correct
66 Correct 97 ms 10324 KB Output is correct
67 Correct 103 ms 10568 KB Output is correct
68 Correct 64 ms 10504 KB Output is correct
69 Correct 62 ms 10324 KB Output is correct
70 Correct 65 ms 10320 KB Output is correct