답안 #875112

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
875112 2023-11-18T17:06:49 Z rakkoon69 Feast (NOI19_feast) C++17
100 / 100
74 ms 8176 KB
#include <bits/stdc++.h>

#define int long long
#define ll long long
#define II pair<int, int>
#define fs first
#define sc second
#define endl '\n'

#define mp(x, y) make_pair(x, y)
#define sz(x) ((int) (x.size()))
#define forlr(i, l, r) for(int i = l; i <= r; ++i)
#define forrl(i, r, l) for(int i = r; i >= l; --i)
#define show(v) for(auto i : v) cout << i << " "; cout << endl;
#define showlr(v, l, r) for (int i = l; i <= r; i++) cout << v[i] << " "; cout << endl;
#define all(v) v.begin(), v.end()
#define Unique(v) v.erase(unique(all(v)), v.end());

const long long LINF = 1ll << 60;
const int INF = 1 << 30;
const int N = 3e5 + 5;

using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); 

int n, k;
int a[N], p[N];

II choose(II A, II B) {
    if(A.fs == B.fs) return A.sc < B.sc ? A : B;
    return A.fs > B.fs ? A : B;    
}

II calc(int cost) {
    II take = {0, 0}, best = {0, 0};

    forlr(i, 1, n) {
        best = choose(best, {take.fs + p[i] - cost, take.sc + 1});
        take = choose(take, {best.fs - p[i], best.sc});
    }

    return best;
}

int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

    cin >> n >> k;

    forlr(i, 1, n) {
        cin >> a[i];
        p[i] = p[i - 1] + a[i];
    }

    int ans = 0;
    int lo = 0, hi = 3e14;
    while(lo <= hi) {
        int mid = (lo + hi) >> 1;
        II v = calc(mid);

        if(v.sc > k) lo = mid + 1;
        else hi = mid - 1, ans = v.fs + k * mid;
    }

    cout << ans << endl;

    return 0;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 72 ms 4952 KB Output is correct
2 Correct 69 ms 5108 KB Output is correct
3 Correct 68 ms 4948 KB Output is correct
4 Correct 67 ms 5004 KB Output is correct
5 Correct 72 ms 5104 KB Output is correct
6 Correct 66 ms 4956 KB Output is correct
7 Correct 65 ms 4956 KB Output is correct
8 Correct 67 ms 4956 KB Output is correct
9 Correct 66 ms 4952 KB Output is correct
10 Correct 67 ms 4944 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 58 ms 4952 KB Output is correct
2 Correct 60 ms 4952 KB Output is correct
3 Correct 59 ms 4956 KB Output is correct
4 Correct 60 ms 4952 KB Output is correct
5 Correct 66 ms 4956 KB Output is correct
6 Correct 59 ms 5152 KB Output is correct
7 Correct 60 ms 5132 KB Output is correct
8 Correct 67 ms 4956 KB Output is correct
9 Correct 66 ms 4952 KB Output is correct
10 Correct 59 ms 4952 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 74 ms 5112 KB Output is correct
2 Correct 72 ms 5204 KB Output is correct
3 Correct 69 ms 5104 KB Output is correct
4 Correct 68 ms 5000 KB Output is correct
5 Correct 69 ms 4956 KB Output is correct
6 Correct 70 ms 4948 KB Output is correct
7 Correct 70 ms 5128 KB Output is correct
8 Correct 69 ms 5112 KB Output is correct
9 Correct 69 ms 5140 KB Output is correct
10 Correct 70 ms 4952 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2520 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2516 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2520 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2516 KB Output is correct
10 Correct 0 ms 2396 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 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2520 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2516 KB Output is correct
10 Correct 0 ms 2396 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 1 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 2396 KB Output is correct
25 Correct 1 ms 2524 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2556 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2548 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 72 ms 4952 KB Output is correct
2 Correct 69 ms 5108 KB Output is correct
3 Correct 68 ms 4948 KB Output is correct
4 Correct 67 ms 5004 KB Output is correct
5 Correct 72 ms 5104 KB Output is correct
6 Correct 66 ms 4956 KB Output is correct
7 Correct 65 ms 4956 KB Output is correct
8 Correct 67 ms 4956 KB Output is correct
9 Correct 66 ms 4952 KB Output is correct
10 Correct 67 ms 4944 KB Output is correct
11 Correct 58 ms 4952 KB Output is correct
12 Correct 60 ms 4952 KB Output is correct
13 Correct 59 ms 4956 KB Output is correct
14 Correct 60 ms 4952 KB Output is correct
15 Correct 66 ms 4956 KB Output is correct
16 Correct 59 ms 5152 KB Output is correct
17 Correct 60 ms 5132 KB Output is correct
18 Correct 67 ms 4956 KB Output is correct
19 Correct 66 ms 4952 KB Output is correct
20 Correct 59 ms 4952 KB Output is correct
21 Correct 74 ms 5112 KB Output is correct
22 Correct 72 ms 5204 KB Output is correct
23 Correct 69 ms 5104 KB Output is correct
24 Correct 68 ms 5000 KB Output is correct
25 Correct 69 ms 4956 KB Output is correct
26 Correct 70 ms 4948 KB Output is correct
27 Correct 70 ms 5128 KB Output is correct
28 Correct 69 ms 5112 KB Output is correct
29 Correct 69 ms 5140 KB Output is correct
30 Correct 70 ms 4952 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2520 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 0 ms 2396 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2516 KB Output is correct
40 Correct 0 ms 2396 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 1 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 2396 KB Output is correct
55 Correct 1 ms 2524 KB Output is correct
56 Correct 1 ms 2396 KB Output is correct
57 Correct 1 ms 2556 KB Output is correct
58 Correct 1 ms 2396 KB Output is correct
59 Correct 1 ms 2396 KB Output is correct
60 Correct 1 ms 2548 KB Output is correct
61 Correct 72 ms 8064 KB Output is correct
62 Correct 72 ms 8024 KB Output is correct
63 Correct 72 ms 8176 KB Output is correct
64 Correct 70 ms 8156 KB Output is correct
65 Correct 71 ms 8016 KB Output is correct
66 Correct 71 ms 7920 KB Output is correct
67 Correct 69 ms 8020 KB Output is correct
68 Correct 74 ms 8168 KB Output is correct
69 Correct 71 ms 8020 KB Output is correct
70 Correct 69 ms 7800 KB Output is correct