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답안 #248706

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
248706 2020-07-13T08:11:22 Z SamAnd Feast (NOI19_feast) C++17
71 / 100
 1000 ms 9080 KB 
#include <bits/stdc++.h>
using namespace std;
#define m_p make_pair
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define fi first
#define se second
typedef long long ll;
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
mt19937 rnf(2106);
const int N = 300005;
const ll INF = 1000000009000000009;

int n, k;
int a[N];

ll p[N];

ll dp[N];

void solv()
{
    scanf("%d%d", &n, &k);
    int q = 0;
    for (int i = 1; i <= n; ++i)
    {
        scanf("%d", &a[i]);
        if (a[i] < 0)
            ++q;
    }
    k = min(k, q + 1);
    for (int i = 1; i <= n; ++i)
        p[i] = p[i - 1] + a[i];
    for (int ii = 0; ii < k; ++ii)
    {
        ll maxu = -INF;
        for (int i = 0; i <= n; ++i)
        {
            maxu = max(maxu, dp[i] - p[i]);
            dp[i] = p[i] + maxu;
            if (i)
                dp[i] = max(dp[i], dp[i - 1]);
        }
    }
    printf("%lld\n", dp[n]);
}

int main()
{
    #ifdef SOMETHING
    freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    #endif // SOMETHING
    solv();
    return 0;
}

//while ((double)clock() / CLOCKS_PER_SEC <= 0.9){}

Compilation message

feast.cpp: In function 'void solv()':
feast.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &k);
     ~~~~~^~~~~~~~~~~~~~~~
feast.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a[i]);
         ~~~~~^~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 56 ms 6264 KB Output is correct
2 Correct 63 ms 9080 KB Output is correct
3 Correct 61 ms 9080 KB Output is correct
4 Correct 58 ms 9080 KB Output is correct
5 Correct 59 ms 8952 KB Output is correct
6 Correct 57 ms 8824 KB Output is correct
7 Correct 57 ms 8824 KB Output is correct
8 Correct 58 ms 8952 KB Output is correct
9 Correct 57 ms 8824 KB Output is correct
10 Correct 57 ms 8952 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 40 ms 6392 KB Output is correct
2 Correct 38 ms 6392 KB Output is correct
3 Correct 39 ms 6264 KB Output is correct
4 Correct 41 ms 6388 KB Output is correct
5 Correct 76 ms 8824 KB Output is correct
6 Correct 38 ms 7160 KB Output is correct
7 Correct 39 ms 7288 KB Output is correct
8 Correct 67 ms 9080 KB Output is correct
9 Correct 57 ms 8840 KB Output is correct
10 Correct 41 ms 7296 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 63 ms 6392 KB Output is correct
2 Correct 64 ms 6328 KB Output is correct
3 Correct 64 ms 6392 KB Output is correct
4 Correct 63 ms 6244 KB Output is correct
5 Correct 66 ms 6392 KB Output is correct
6 Correct 63 ms 6392 KB Output is correct
7 Correct 63 ms 6392 KB Output is correct
8 Correct 62 ms 6396 KB Output is correct
9 Correct 67 ms 6392 KB Output is correct
10 Correct 63 ms 6396 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 376 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 376 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 9 ms 512 KB Output is correct
23 Correct 4 ms 384 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct

Subtask #7
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 56 ms 6264 KB Output is correct
2 Correct 63 ms 9080 KB Output is correct
3 Correct 61 ms 9080 KB Output is correct
4 Correct 58 ms 9080 KB Output is correct
5 Correct 59 ms 8952 KB Output is correct
6 Correct 57 ms 8824 KB Output is correct
7 Correct 57 ms 8824 KB Output is correct
8 Correct 58 ms 8952 KB Output is correct
9 Correct 57 ms 8824 KB Output is correct
10 Correct 57 ms 8952 KB Output is correct
11 Correct 40 ms 6392 KB Output is correct
12 Correct 38 ms 6392 KB Output is correct
13 Correct 39 ms 6264 KB Output is correct
14 Correct 41 ms 6388 KB Output is correct
15 Correct 76 ms 8824 KB Output is correct
16 Correct 38 ms 7160 KB Output is correct
17 Correct 39 ms 7288 KB Output is correct
18 Correct 67 ms 9080 KB Output is correct
19 Correct 57 ms 8840 KB Output is correct
20 Correct 41 ms 7296 KB Output is correct
21 Correct 63 ms 6392 KB Output is correct
22 Correct 64 ms 6328 KB Output is correct
23 Correct 64 ms 6392 KB Output is correct
24 Correct 63 ms 6244 KB Output is correct
25 Correct 66 ms 6392 KB Output is correct
26 Correct 63 ms 6392 KB Output is correct
27 Correct 63 ms 6392 KB Output is correct
28 Correct 62 ms 6396 KB Output is correct
29 Correct 67 ms 6392 KB Output is correct
30 Correct 63 ms 6396 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 0 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 0 ms 384 KB Output is correct
38 Correct 0 ms 384 KB Output is correct
39 Correct 0 ms 384 KB Output is correct
40 Correct 0 ms 384 KB Output is correct
41 Correct 0 ms 384 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 1 ms 384 KB Output is correct
45 Correct 1 ms 376 KB Output is correct
46 Correct 0 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 0 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 0 ms 384 KB Output is correct
51 Correct 2 ms 384 KB Output is correct
52 Correct 9 ms 512 KB Output is correct
53 Correct 4 ms 384 KB Output is correct
54 Correct 2 ms 384 KB Output is correct
55 Correct 3 ms 384 KB Output is correct
56 Correct 2 ms 384 KB Output is correct
57 Correct 3 ms 384 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Execution timed out 1090 ms 9080 KB Time limit exceeded
62 Halted 0 ms 0 KB -