답안 #1101092

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1101092	2024-10-15T13:22:18 Z	trie	Feast (NOI19_feast)	C++17	71 / 100	114 ms	104188 KB

feast

#include<bits/stdc++.h>
#define mp make_pair
#define fi first
#define se second
#define ii pair<int, int>
#define iii pair<ii, int>
#define ll long long
#define pb push_back
#define pli pair<ll, int>
#define all(v) (v).begin(), (v).end()
#define uniquev(v) sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define cntbit(mask) __builtin_popcount(mask)
#define getbit(x, i) ((x >> i) & 1)
#define MASK(i) (1 << i)
#define pli pair<ll, int>
using namespace std;

template<class T1, class T2>
bool maximize(T1 &a, T2 b){if(a < b){a = b; return 1;} return 0;}

template<class T1, class T2>
bool minimize(T1 &a, T2 b){if(a > b){a = b; return 1;} return 0;}

const int N = 2005;
const int V = 3e5 + 5;
const int MOD = 1e9 + 7;

int n, k;
ll pr[V], dp[N][N], mx[N][N], a[V];
int negative, idx;

void solve() {
    cin >> n >> k;
    for(int i = 1 ; i <= n ; i++) {
        cin >> a[i];
        pr[i] = pr[i - 1] + a[i];
        if (a[i] < 0) {
            negative++;
            idx = i;
        }
    }

    if (!negative) return cout << pr[n], void();
    if (k == 1) { // kadane algorithm.
        ll sum = 0, mxsum = 0;
        for(int i = 1 ; i <= n ; i++) {
            sum += a[i];
            maximize(mxsum, sum);
            if (sum < 0) sum = 0;
        }
        return cout << mxsum, void();
    }
    if (negative == 1) return cout << pr[n] - a[idx], void();

    for(int i = 1 ; i <= n ; i++) mx[i][0] = max(mx[i - 1][0], - pr[i]);

    for(int i = 1 ; i <= n ; i++)
        for(int j = 1 ; j <= n ; j++) {
            dp[i][j] = dp[i - 1][j];
            maximize(dp[i][j], mx[i][j - 1] + pr[i]);
            mx[i][j] = max(mx[i - 1][j], dp[i][j] - pr[i]);
        }

    cout << dp[n][k];
}

int main(void) {
    //freopen("task.inp", "r", stdin);
    //freopen("task.out", "w", stdout);
	ios_base::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
    int t = 1; while(t--) solve();
    return 0;
}

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	6992 KB	Output is correct
2	Correct	21 ms	6992 KB	Output is correct
3	Correct	21 ms	7080 KB	Output is correct
4	Correct	21 ms	6992 KB	Output is correct
5	Correct	20 ms	7036 KB	Output is correct
6	Correct	20 ms	6992 KB	Output is correct
7	Correct	20 ms	6992 KB	Output is correct
8	Correct	21 ms	6988 KB	Output is correct
9	Correct	20 ms	6896 KB	Output is correct
10	Correct	20 ms	6992 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	6968 KB	Output is correct
2	Correct	14 ms	6992 KB	Output is correct
3	Correct	14 ms	6992 KB	Output is correct
4	Correct	15 ms	6992 KB	Output is correct
5	Correct	22 ms	9784 KB	Output is correct
6	Correct	14 ms	8016 KB	Output is correct
7	Correct	14 ms	8016 KB	Output is correct
8	Correct	22 ms	9820 KB	Output is correct
9	Correct	22 ms	9728 KB	Output is correct
10	Correct	14 ms	8016 KB	Output is correct

Subtask #3
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	6992 KB	Output is correct
2	Correct	23 ms	6960 KB	Output is correct
3	Correct	23 ms	6992 KB	Output is correct
4	Correct	23 ms	6992 KB	Output is correct
5	Correct	23 ms	6992 KB	Output is correct
6	Correct	23 ms	6984 KB	Output is correct
7	Correct	23 ms	6984 KB	Output is correct
8	Correct	23 ms	6996 KB	Output is correct
9	Correct	33 ms	6984 KB	Output is correct
10	Correct	24 ms	6964 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	1104 KB	Output is correct
3	Correct	1 ms	1104 KB	Output is correct
4	Correct	1 ms	1104 KB	Output is correct
5	Correct	2 ms	1104 KB	Output is correct
6	Correct	1 ms	1104 KB	Output is correct
7	Correct	1 ms	1104 KB	Output is correct
8	Correct	1 ms	1292 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	1104 KB	Output is correct

Subtask #5
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	1104 KB	Output is correct
3	Correct	1 ms	1104 KB	Output is correct
4	Correct	1 ms	1104 KB	Output is correct
5	Correct	2 ms	1104 KB	Output is correct
6	Correct	1 ms	1104 KB	Output is correct
7	Correct	1 ms	1104 KB	Output is correct
8	Correct	1 ms	1292 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	1104 KB	Output is correct
11	Correct	3 ms	9808 KB	Output is correct
12	Correct	2 ms	9808 KB	Output is correct
13	Correct	2 ms	9976 KB	Output is correct
14	Correct	2 ms	9808 KB	Output is correct
15	Correct	2 ms	9808 KB	Output is correct
16	Correct	3 ms	9808 KB	Output is correct
17	Correct	2 ms	9808 KB	Output is correct
18	Correct	2 ms	9808 KB	Output is correct
19	Correct	2 ms	9808 KB	Output is correct
20	Correct	2 ms	9808 KB	Output is correct

Subtask #6
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	1104 KB	Output is correct
3	Correct	1 ms	1104 KB	Output is correct
4	Correct	1 ms	1104 KB	Output is correct
5	Correct	2 ms	1104 KB	Output is correct
6	Correct	1 ms	1104 KB	Output is correct
7	Correct	1 ms	1104 KB	Output is correct
8	Correct	1 ms	1292 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	1104 KB	Output is correct
11	Correct	3 ms	9808 KB	Output is correct
12	Correct	2 ms	9808 KB	Output is correct
13	Correct	2 ms	9976 KB	Output is correct
14	Correct	2 ms	9808 KB	Output is correct
15	Correct	2 ms	9808 KB	Output is correct
16	Correct	3 ms	9808 KB	Output is correct
17	Correct	2 ms	9808 KB	Output is correct
18	Correct	2 ms	9808 KB	Output is correct
19	Correct	2 ms	9808 KB	Output is correct
20	Correct	2 ms	9808 KB	Output is correct
21	Correct	22 ms	61464 KB	Output is correct
22	Correct	24 ms	61436 KB	Output is correct
23	Correct	21 ms	61564 KB	Output is correct
24	Correct	23 ms	61520 KB	Output is correct
25	Correct	23 ms	63316 KB	Output is correct
26	Correct	21 ms	63056 KB	Output is correct
27	Correct	22 ms	63048 KB	Output is correct
28	Correct	25 ms	63056 KB	Output is correct
29	Correct	22 ms	62800 KB	Output is correct
30	Correct	18 ms	61520 KB	Output is correct

Subtask #7
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	6992 KB	Output is correct
2	Correct	21 ms	6992 KB	Output is correct
3	Correct	21 ms	7080 KB	Output is correct
4	Correct	21 ms	6992 KB	Output is correct
5	Correct	20 ms	7036 KB	Output is correct
6	Correct	20 ms	6992 KB	Output is correct
7	Correct	20 ms	6992 KB	Output is correct
8	Correct	21 ms	6988 KB	Output is correct
9	Correct	20 ms	6896 KB	Output is correct
10	Correct	20 ms	6992 KB	Output is correct
11	Correct	14 ms	6968 KB	Output is correct
12	Correct	14 ms	6992 KB	Output is correct
13	Correct	14 ms	6992 KB	Output is correct
14	Correct	15 ms	6992 KB	Output is correct
15	Correct	22 ms	9784 KB	Output is correct
16	Correct	14 ms	8016 KB	Output is correct
17	Correct	14 ms	8016 KB	Output is correct
18	Correct	22 ms	9820 KB	Output is correct
19	Correct	22 ms	9728 KB	Output is correct
20	Correct	14 ms	8016 KB	Output is correct
21	Correct	23 ms	6992 KB	Output is correct
22	Correct	23 ms	6960 KB	Output is correct
23	Correct	23 ms	6992 KB	Output is correct
24	Correct	23 ms	6992 KB	Output is correct
25	Correct	23 ms	6992 KB	Output is correct
26	Correct	23 ms	6984 KB	Output is correct
27	Correct	23 ms	6984 KB	Output is correct
28	Correct	23 ms	6996 KB	Output is correct
29	Correct	33 ms	6984 KB	Output is correct
30	Correct	24 ms	6964 KB	Output is correct
31	Correct	1 ms	336 KB	Output is correct
32	Correct	1 ms	1104 KB	Output is correct
33	Correct	1 ms	1104 KB	Output is correct
34	Correct	1 ms	1104 KB	Output is correct
35	Correct	2 ms	1104 KB	Output is correct
36	Correct	1 ms	1104 KB	Output is correct
37	Correct	1 ms	1104 KB	Output is correct
38	Correct	1 ms	1292 KB	Output is correct
39	Correct	1 ms	336 KB	Output is correct
40	Correct	1 ms	1104 KB	Output is correct
41	Correct	3 ms	9808 KB	Output is correct
42	Correct	2 ms	9808 KB	Output is correct
43	Correct	2 ms	9976 KB	Output is correct
44	Correct	2 ms	9808 KB	Output is correct
45	Correct	2 ms	9808 KB	Output is correct
46	Correct	3 ms	9808 KB	Output is correct
47	Correct	2 ms	9808 KB	Output is correct
48	Correct	2 ms	9808 KB	Output is correct
49	Correct	2 ms	9808 KB	Output is correct
50	Correct	2 ms	9808 KB	Output is correct
51	Correct	22 ms	61464 KB	Output is correct
52	Correct	24 ms	61436 KB	Output is correct
53	Correct	21 ms	61564 KB	Output is correct
54	Correct	23 ms	61520 KB	Output is correct
55	Correct	23 ms	63316 KB	Output is correct
56	Correct	21 ms	63056 KB	Output is correct
57	Correct	22 ms	63048 KB	Output is correct
58	Correct	25 ms	63056 KB	Output is correct
59	Correct	22 ms	62800 KB	Output is correct
60	Correct	18 ms	61520 KB	Output is correct
61	Runtime error	114 ms	104188 KB	Execution killed with signal 11
62	Halted	0 ms	0 KB	-

답안 #1101092

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 8.0 / 8.0

Subtask #3 18.0 / 18.0

Subtask #4 10.0 / 10.0

Subtask #5 11.0 / 11.0

Subtask #6 20.0 / 20.0

Subtask #7 0 / 29.0

Subtask #1
4.0 / 4.0

Subtask #2
8.0 / 8.0

Subtask #3
18.0 / 18.0

Subtask #4
10.0 / 10.0

Subtask #5
11.0 / 11.0

Subtask #6
20.0 / 20.0

Subtask #7
0 / 29.0