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답안 #720500

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
720500 2023-04-08T11:16:12 Z Rafi22 Uplifting Excursion (BOI22_vault) C++14
50 / 100
 2426 ms 6908 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long
#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define ll long long
ll mod=1000000007;
int inf=1000000007;
ll infl=1000000000000000007;

const int M=307;

ll a[2*M];
ll b[2*M];

int DP[M*M*4];
int nDP[M*M*4];

void gg()
{
    cout<<"impossible";
    exit(0);
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
   // freopen("in.txt","r",stdin);
    clock_t t = clock();
    int m;
    ll l,sum=0,ans=0,act=0;
    cin>>m>>l;
    for(ll i=-m;i<=m;i++)
    {
        cin>>a[i+m];
        sum+=a[i+m]*i;
    }
    ans+=a[m];
    a[m]=0;
    if(sum>=l)
    {
        for(ll i=-m;i<=m;i++)
        {
            ll x;
            if(i<=0) x=a[i+m];
            else x=min(a[i+m],(l-act)/i);
            b[-i+m]+=x;
            a[i+m]-=x;
            ans+=x;
            act+=i*x;
        }
    }
    else
    {
        for(ll i=m;i>=-m;i--)
        {
            ll x;
            if(i>=0) x=a[i+m];
            else x=min(a[i+m],(l-act)/i);
            b[-i+m]+=x;
            a[i+m]-=x;
            ans+=x;
            act+=x*i;
        }
    }
    for(int i=-2*m*m;i<=2*m*m;i++) DP[i+2*m*m]=-infl;
    DP[2*m*m]=0;
    for(int i=1;i<=m;i++)
    {
        for(int j=-2*m*m;j<=2*m*m;j++) nDP[j+2*m*m]=DP[j+2*m*m];
        for(int l=-2*m*m;l<-2*m*m+i;l++)
        {
            deque<pair<int,int>>Q;
            int c=0;
            if(a[i+m]>0)
            {
                for(int j=l; j<=2*m*m; j+=i)
                {
                    c++;
                    while(sz(Q)>0&&Q[0].nd<c-a[i+m]) Q.pop_front();
                    while(sz(Q)>0&&Q.back().st<DP[j+2*m*m]-c) Q.pop_back();
                    Q.pb({DP[j+2*m*m]-c,c});
                    if(sz(Q)>0) nDP[j+2*m*m]=max(nDP[j+2*m*m],Q[0].st+c);
                }
            }
            Q.clear();
            c=0;
            if(b[i+m]>0)
            {
                for(int j=l; j<=2*m*m; j+=i)
                {
                    c++;
                    while(sz(Q)>0&&Q[0].nd<c-b[i+m]) Q.pop_front();
                    if(c>a[i+m])
                    {
                        while(sz(Q)>0&&Q.back().st<DP[j-a[i+m]*i+2*m*m]+c) Q.pop_back();
                        Q.pb({DP[j-a[i+m]*i+2*m*m]+c,c});
                    }
                    if(sz(Q)>0) nDP[j+2*m*m]=max(nDP[j+2*m*m],Q[0].st+(int)a[i+m]-c);
                }
            }
        }
        for(int j=-2*m*m;j<=2*m*m;j++) DP[j+2*m*m]=nDP[j+2*m*m];
    }
    for(int i=1;i<=m;i++)
    {
        for(int j=-2*m*m;j<=2*m*m;j++) nDP[j+2*m*m]=DP[j+2*m*m];
        for(int l=2*m*m;l>2*m*m-i;l--)
        {
            deque<pair<int,int>>Q;
            int c=0;
            if(a[-i+m]>0)
            {
                for(int j=l; j>=-2*m*m; j-=i)
                {
                    c++;
                    while(sz(Q)>0&&Q[0].nd<c-a[-i+m]) Q.pop_front();
                    while(sz(Q)>0&&Q.back().st<DP[j+2*m*m]-c) Q.pop_back();
                    Q.pb({DP[j+2*m*m]-c,c});
                    if(sz(Q)>0) nDP[j+2*m*m]=max(nDP[j+2*m*m],Q[0].st+c);
                }
            }
            Q.clear();
            c=0;
            if(b[-i+m]>0)
            {
                for(int j=l; j>=-2*m*m; j-=i)
                {
                    c++;
                    while(sz(Q)>0&&Q[0].nd<c-b[-i+m]) Q.pop_front();
                    if(c>a[-i+m])
                    {
                        while(sz(Q)>0&&Q.back().st<DP[j+a[-i+m]*i+2*m*m]+c) Q.pop_back();
                        Q.pb({DP[j+a[-i+m]*i+2*m*m]+c,c});
                    }
                    if(sz(Q)>0) nDP[j+2*m*m]=max(nDP[j+2*m*m],Q[0].st+(int)a[-i+m]-c);
                }
            }
        }
        for(int j=-2*m*m;j<=2*m*m;j++) DP[j+2*m*m]=nDP[j+2*m*m];
    }
    l-=act;
    t = clock() - t;
  //  printf ("It took me %d clicks (%f seconds).\n",t,((float)t)/CLOCKS_PER_SEC);
    if(l<-2*m*m||l>2*m*m) gg();
    else
    {
        if(DP[l+2*m*m]<-inf/2) gg();
        cout<<ans+(ll)DP[l+2*m*m];
    }

    return 0;
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Incorrect 23 ms 468 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Incorrect 23 ms 468 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3-1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 3 ms 340 KB Output is correct
3 Correct 2 ms 396 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 396 KB Output is correct

Subtask #3-2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 3 ms 340 KB Output is correct
3 Correct 2 ms 396 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 396 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 3 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 3 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 6 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 4 ms 340 KB Output is correct
27 Correct 4 ms 404 KB Output is correct
28 Correct 4 ms 340 KB Output is correct

Subtask #4-1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 3 ms 340 KB Output is correct
3 Correct 2 ms 396 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 396 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 2 ms 468 KB Output is correct
22 Correct 3 ms 468 KB Output is correct
23 Correct 15 ms 468 KB Output is correct
24 Correct 5 ms 468 KB Output is correct
25 Correct 9 ms 512 KB Output is correct
26 Correct 9 ms 468 KB Output is correct
27 Correct 10 ms 536 KB Output is correct
28 Correct 7 ms 508 KB Output is correct

Subtask #4-2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Incorrect 23 ms 468 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #5-1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 3 ms 340 KB Output is correct
3 Correct 2 ms 396 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 396 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 2 ms 468 KB Output is correct
22 Correct 3 ms 468 KB Output is correct
23 Correct 15 ms 468 KB Output is correct
24 Correct 5 ms 468 KB Output is correct
25 Correct 9 ms 512 KB Output is correct
26 Correct 9 ms 468 KB Output is correct
27 Correct 10 ms 536 KB Output is correct
28 Correct 7 ms 508 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 3 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 3 ms 340 KB Output is correct
33 Correct 3 ms 340 KB Output is correct
34 Correct 2 ms 340 KB Output is correct
35 Correct 1 ms 396 KB Output is correct
36 Correct 2 ms 340 KB Output is correct
37 Correct 2 ms 340 KB Output is correct
38 Correct 3 ms 340 KB Output is correct
39 Correct 2 ms 468 KB Output is correct
40 Correct 2 ms 388 KB Output is correct
41 Correct 9 ms 468 KB Output is correct
42 Correct 5 ms 504 KB Output is correct
43 Correct 9 ms 468 KB Output is correct
44 Correct 10 ms 468 KB Output is correct
45 Correct 9 ms 468 KB Output is correct
46 Correct 7 ms 468 KB Output is correct
47 Correct 7 ms 852 KB Output is correct
48 Correct 11 ms 976 KB Output is correct
49 Correct 82 ms 972 KB Output is correct
50 Correct 35 ms 980 KB Output is correct
51 Correct 78 ms 968 KB Output is correct
52 Correct 74 ms 1012 KB Output is correct
53 Correct 71 ms 1116 KB Output is correct
54 Correct 68 ms 1060 KB Output is correct

Subtask #5-2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Incorrect 23 ms 468 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #6-1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 3 ms 340 KB Output is correct
3 Correct 2 ms 396 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 396 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 2 ms 468 KB Output is correct
22 Correct 3 ms 468 KB Output is correct
23 Correct 15 ms 468 KB Output is correct
24 Correct 5 ms 468 KB Output is correct
25 Correct 9 ms 512 KB Output is correct
26 Correct 9 ms 468 KB Output is correct
27 Correct 10 ms 536 KB Output is correct
28 Correct 7 ms 508 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 3 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 3 ms 340 KB Output is correct
33 Correct 3 ms 340 KB Output is correct
34 Correct 2 ms 340 KB Output is correct
35 Correct 1 ms 396 KB Output is correct
36 Correct 2 ms 340 KB Output is correct
37 Correct 2 ms 340 KB Output is correct
38 Correct 3 ms 340 KB Output is correct
39 Correct 2 ms 468 KB Output is correct
40 Correct 2 ms 388 KB Output is correct
41 Correct 9 ms 468 KB Output is correct
42 Correct 5 ms 504 KB Output is correct
43 Correct 9 ms 468 KB Output is correct
44 Correct 10 ms 468 KB Output is correct
45 Correct 9 ms 468 KB Output is correct
46 Correct 7 ms 468 KB Output is correct
47 Correct 7 ms 852 KB Output is correct
48 Correct 11 ms 976 KB Output is correct
49 Correct 82 ms 972 KB Output is correct
50 Correct 35 ms 980 KB Output is correct
51 Correct 78 ms 968 KB Output is correct
52 Correct 74 ms 1012 KB Output is correct
53 Correct 71 ms 1116 KB Output is correct
54 Correct 68 ms 1060 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 3 ms 340 KB Output is correct
57 Correct 2 ms 340 KB Output is correct
58 Correct 4 ms 340 KB Output is correct
59 Correct 3 ms 340 KB Output is correct
60 Correct 3 ms 340 KB Output is correct
61 Correct 2 ms 340 KB Output is correct
62 Correct 1 ms 400 KB Output is correct
63 Correct 2 ms 340 KB Output is correct
64 Correct 2 ms 340 KB Output is correct
65 Correct 2 ms 468 KB Output is correct
66 Correct 2 ms 468 KB Output is correct
67 Correct 11 ms 468 KB Output is correct
68 Correct 6 ms 504 KB Output is correct
69 Correct 10 ms 508 KB Output is correct
70 Correct 10 ms 504 KB Output is correct
71 Correct 10 ms 536 KB Output is correct
72 Correct 9 ms 468 KB Output is correct
73 Correct 9 ms 972 KB Output is correct
74 Correct 9 ms 972 KB Output is correct
75 Correct 79 ms 1036 KB Output is correct
76 Correct 34 ms 960 KB Output is correct
77 Correct 71 ms 1060 KB Output is correct
78 Correct 80 ms 972 KB Output is correct
79 Correct 74 ms 1108 KB Output is correct
80 Correct 64 ms 972 KB Output is correct
81 Correct 2326 ms 6684 KB Output is correct
82 Correct 1123 ms 6092 KB Output is correct
83 Correct 2242 ms 6144 KB Output is correct
84 Correct 2426 ms 6676 KB Output is correct
85 Correct 180 ms 6076 KB Output is correct
86 Correct 200 ms 6080 KB Output is correct
87 Correct 1919 ms 6908 KB Output is correct

Subtask #6-2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Incorrect 23 ms 468 KB Output isn't correct
6 Halted 0 ms 0 KB -