답안 #1085261

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1085261	2024-09-07T19:07:23 Z	quan606303	Feast (NOI19_feast)	C++14	40 / 100	95 ms	17492 KB

feast

///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)
{
    dp[1][0]={0,0};
    dp[1][1]={-pre[0]-pen,1};
    for (int i=2;i<=n;i++)
    {
        dp[i][1]=max(dp[i-1][1],make_pair(dp[i-1][0].fi-pre[i-1]-pen,dp[i-1][0].se+1));
        dp[i][0]=max(dp[i-1][0],make_pair(dp[i][1].fi+pre[i],dp[i][1].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	16636 KB	Output is correct
2	Correct	65 ms	17036 KB	Output is correct
3	Correct	67 ms	17236 KB	Output is correct
4	Correct	68 ms	17276 KB	Output is correct
5	Correct	65 ms	16976 KB	Output is correct
6	Correct	62 ms	16908 KB	Output is correct
7	Correct	63 ms	16732 KB	Output is correct
8	Correct	64 ms	17164 KB	Output is correct
9	Correct	69 ms	16728 KB	Output is correct
10	Correct	65 ms	17048 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	56 ms	15196 KB	Output is correct
2	Correct	72 ms	15436 KB	Output is correct
3	Correct	56 ms	15196 KB	Output is correct
4	Correct	67 ms	15184 KB	Output is correct
5	Correct	67 ms	16724 KB	Output is correct
6	Correct	56 ms	15448 KB	Output is correct
7	Correct	58 ms	15664 KB	Output is correct
8	Correct	64 ms	17240 KB	Output is correct
9	Correct	64 ms	16724 KB	Output is correct
10	Correct	57 ms	15448 KB	Output is correct

Subtask #3
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	88 ms	17240 KB	Output is correct
2	Correct	89 ms	17168 KB	Output is correct
3	Correct	85 ms	17240 KB	Output is correct
4	Correct	88 ms	16976 KB	Output is correct
5	Correct	90 ms	17240 KB	Output is correct
6	Correct	95 ms	17448 KB	Output is correct
7	Correct	89 ms	17488 KB	Output is correct
8	Correct	93 ms	17492 KB	Output is correct
9	Correct	85 ms	17412 KB	Output is correct
10	Correct	85 ms	17488 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	356 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 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	1 ms	348 KB	Output is correct

Subtask #5
0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	356 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 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	1 ms	348 KB	Output is correct
11	Incorrect	1 ms	344 KB	Output isn't correct
12	Halted	0 ms	0 KB	-

Subtask #6
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	356 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 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	1 ms	348 KB	Output is correct
11	Incorrect	1 ms	344 KB	Output isn't correct
12	Halted	0 ms	0 KB	-

Subtask #7
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	61 ms	16636 KB	Output is correct
2	Correct	65 ms	17036 KB	Output is correct
3	Correct	67 ms	17236 KB	Output is correct
4	Correct	68 ms	17276 KB	Output is correct
5	Correct	65 ms	16976 KB	Output is correct
6	Correct	62 ms	16908 KB	Output is correct
7	Correct	63 ms	16732 KB	Output is correct
8	Correct	64 ms	17164 KB	Output is correct
9	Correct	69 ms	16728 KB	Output is correct
10	Correct	65 ms	17048 KB	Output is correct
11	Correct	56 ms	15196 KB	Output is correct
12	Correct	72 ms	15436 KB	Output is correct
13	Correct	56 ms	15196 KB	Output is correct
14	Correct	67 ms	15184 KB	Output is correct
15	Correct	67 ms	16724 KB	Output is correct
16	Correct	56 ms	15448 KB	Output is correct
17	Correct	58 ms	15664 KB	Output is correct
18	Correct	64 ms	17240 KB	Output is correct
19	Correct	64 ms	16724 KB	Output is correct
20	Correct	57 ms	15448 KB	Output is correct
21	Correct	88 ms	17240 KB	Output is correct
22	Correct	89 ms	17168 KB	Output is correct
23	Correct	85 ms	17240 KB	Output is correct
24	Correct	88 ms	16976 KB	Output is correct
25	Correct	90 ms	17240 KB	Output is correct
26	Correct	95 ms	17448 KB	Output is correct
27	Correct	89 ms	17488 KB	Output is correct
28	Correct	93 ms	17492 KB	Output is correct
29	Correct	85 ms	17412 KB	Output is correct
30	Correct	85 ms	17488 KB	Output is correct
31	Correct	0 ms	356 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	0 ms	348 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	1 ms	348 KB	Output is correct
41	Incorrect	1 ms	344 KB	Output isn't correct
42	Halted	0 ms	0 KB	-

답안 #1085261

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 0 / 11.0

Subtask #6 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
0 / 11.0

Subtask #6
0 / 20.0

Subtask #7
0 / 29.0