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답안 #1085266

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1085266 2024-09-07T19:20:26 Z quan606303 Feast (NOI19_feast) C++14
100 / 100
 110 ms 17064 KB 
///0-0 : what is your motivation, quan606303?
///quan606303 : Hutao
/*idea : 
 
 
 
*/
#include <bits/stdc++.h>
#define int long long
#define ll long long
#define INTMAX INT_MAX
#define INTMIN INT_MIN
#define LONGMAX LLONG_MAX
#define LONGMIN LLONG_MIN
#define fi first
#define se second
#define memfull(a,b) memset(a,b,sizeof(a));
#define endl '\n'
#define file(a) freopen(a".inp","r",stdin); freopen(a".out","w",stdout);
using namespace std;
const int MOD=1e9+7;
const int maxn=3e5+7;;
int n,k,a[maxn],pre[maxn];
pair<int,int> dp[maxn][2];
pair<int,int> sub1(int pen)
{
    for (int i=1;i<=n;i++)
    {
        dp[i][0]=max(dp[i-1][0],make_pair(dp[i-1][1].fi+pre[i]-pen,dp[i-1][1].se+1));
        dp[i][1]=max(dp[i-1][1],make_pair(dp[i][0].fi-pre[i],dp[i][0].se));
    }
    return dp[n][0];
}
int32_t main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
   // file("MUABANCO");
    cin>>n>>k;
    for (int i=1;i<=n;i++)cin>>a[i];
    for (int i=1;i<=n;i++)pre[i]=pre[i-1]+a[i];
    int l=0,r=1e18,ans=0;
    while (l<=r)
    {
        int mid=(l+r)/2;
        pair<int,int> cnt=sub1(mid);
        if (cnt.se<=k)
        {
            r=mid-1;
            ans=cnt.fi+cnt.se*mid;
        }
        else l=mid+1;
    }
    cout<<ans;
    return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 61 ms 16720 KB Output is correct
2 Correct 65 ms 16976 KB Output is correct
3 Correct 64 ms 16976 KB Output is correct
4 Correct 63 ms 16888 KB Output is correct
5 Correct 64 ms 16724 KB Output is correct
6 Correct 61 ms 16220 KB Output is correct
7 Correct 61 ms 16212 KB Output is correct
8 Correct 64 ms 16932 KB Output is correct
9 Correct 63 ms 16212 KB Output is correct
10 Correct 68 ms 16720 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 54 ms 15308 KB Output is correct
2 Correct 54 ms 15452 KB Output is correct
3 Correct 54 ms 15196 KB Output is correct
4 Correct 55 ms 15184 KB Output is correct
5 Correct 67 ms 16468 KB Output is correct
6 Correct 59 ms 15196 KB Output is correct
7 Correct 54 ms 15484 KB Output is correct
8 Correct 65 ms 16976 KB Output is correct
9 Correct 65 ms 16136 KB Output is correct
10 Correct 58 ms 15696 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 82 ms 16720 KB Output is correct
2 Correct 78 ms 16724 KB Output is correct
3 Correct 80 ms 16720 KB Output is correct
4 Correct 76 ms 16720 KB Output is correct
5 Correct 79 ms 16724 KB Output is correct
6 Correct 79 ms 16976 KB Output is correct
7 Correct 80 ms 16904 KB Output is correct
8 Correct 77 ms 16728 KB Output is correct
9 Correct 85 ms 17064 KB Output is correct
10 Correct 88 ms 16976 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 472 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 592 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 61 ms 16720 KB Output is correct
2 Correct 65 ms 16976 KB Output is correct
3 Correct 64 ms 16976 KB Output is correct
4 Correct 63 ms 16888 KB Output is correct
5 Correct 64 ms 16724 KB Output is correct
6 Correct 61 ms 16220 KB Output is correct
7 Correct 61 ms 16212 KB Output is correct
8 Correct 64 ms 16932 KB Output is correct
9 Correct 63 ms 16212 KB Output is correct
10 Correct 68 ms 16720 KB Output is correct
11 Correct 54 ms 15308 KB Output is correct
12 Correct 54 ms 15452 KB Output is correct
13 Correct 54 ms 15196 KB Output is correct
14 Correct 55 ms 15184 KB Output is correct
15 Correct 67 ms 16468 KB Output is correct
16 Correct 59 ms 15196 KB Output is correct
17 Correct 54 ms 15484 KB Output is correct
18 Correct 65 ms 16976 KB Output is correct
19 Correct 65 ms 16136 KB Output is correct
20 Correct 58 ms 15696 KB Output is correct
21 Correct 82 ms 16720 KB Output is correct
22 Correct 78 ms 16724 KB Output is correct
23 Correct 80 ms 16720 KB Output is correct
24 Correct 76 ms 16720 KB Output is correct
25 Correct 79 ms 16724 KB Output is correct
26 Correct 79 ms 16976 KB Output is correct
27 Correct 80 ms 16904 KB Output is correct
28 Correct 77 ms 16728 KB Output is correct
29 Correct 85 ms 17064 KB Output is correct
30 Correct 88 ms 16976 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 344 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 472 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 1 ms 592 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 102 ms 16716 KB Output is correct
62 Correct 104 ms 16976 KB Output is correct
63 Correct 88 ms 16464 KB Output is correct
64 Correct 106 ms 16980 KB Output is correct
65 Correct 110 ms 16964 KB Output is correct
66 Correct 105 ms 16928 KB Output is correct
67 Correct 104 ms 16720 KB Output is correct
68 Correct 86 ms 16876 KB Output is correct
69 Correct 77 ms 16720 KB Output is correct
70 Correct 78 ms 16464 KB Output is correct