oj.uz

Submission #720504

# Submission time Handle Problem Language Result Execution time Memory
720504 2023-04-08T11:19:45 Z Rafi22 Uplifting Excursion (BOI22_vault) C++14
40 / 100
 5000 ms 6680 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]<-infl/2) gg();
        cout<<ans+(ll)DP[l+2*m*m];
    }

    return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Incorrect 36 ms 468 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Incorrect 36 ms 468 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 10 ms 340 KB Output is correct
3 Correct 9 ms 340 KB Output is correct
4 Correct 9 ms 340 KB Output is correct
5 Correct 8 ms 396 KB Output is correct
6 Correct 8 ms 340 KB Output is correct
7 Correct 8 ms 404 KB Output is correct
8 Correct 10 ms 340 KB Output is correct
9 Correct 8 ms 340 KB Output is correct
10 Correct 8 ms 340 KB Output is correct

Subtask #3-2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 10 ms 340 KB Output is correct
3 Correct 9 ms 340 KB Output is correct
4 Correct 9 ms 340 KB Output is correct
5 Correct 8 ms 396 KB Output is correct
6 Correct 8 ms 340 KB Output is correct
7 Correct 8 ms 404 KB Output is correct
8 Correct 10 ms 340 KB Output is correct
9 Correct 8 ms 340 KB Output is correct
10 Correct 8 ms 340 KB Output is correct
11 Correct 1 ms 388 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 232 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 9 ms 340 KB Output is correct
16 Correct 9 ms 340 KB Output is correct
17 Correct 15 ms 340 KB Output is correct
18 Correct 8 ms 404 KB Output is correct
19 Correct 8 ms 420 KB Output is correct
20 Correct 8 ms 340 KB Output is correct
21 Correct 8 ms 404 KB Output is correct
22 Correct 7 ms 340 KB Output is correct
23 Correct 8 ms 340 KB Output is correct
24 Correct 14 ms 404 KB Output is correct
25 Correct 14 ms 396 KB Output is correct
26 Correct 11 ms 408 KB Output is correct
27 Correct 12 ms 340 KB Output is correct
28 Correct 13 ms 340 KB Output is correct

Subtask #4-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 10 ms 340 KB Output is correct
3 Correct 9 ms 340 KB Output is correct
4 Correct 9 ms 340 KB Output is correct
5 Correct 8 ms 396 KB Output is correct
6 Correct 8 ms 340 KB Output is correct
7 Correct 8 ms 404 KB Output is correct
8 Correct 10 ms 340 KB Output is correct
9 Correct 8 ms 340 KB Output is correct
10 Correct 8 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 9 ms 340 KB Output is correct
13 Correct 14 ms 396 KB Output is correct
14 Correct 12 ms 404 KB Output is correct
15 Correct 15 ms 404 KB Output is correct
16 Correct 14 ms 340 KB Output is correct
17 Correct 15 ms 396 KB Output is correct
18 Correct 8 ms 340 KB Output is correct
19 Correct 16 ms 340 KB Output is correct
20 Correct 8 ms 400 KB Output is correct
21 Correct 40 ms 480 KB Output is correct
22 Correct 37 ms 468 KB Output is correct
23 Correct 36 ms 468 KB Output is correct
24 Correct 60 ms 468 KB Output is correct
25 Correct 36 ms 468 KB Output is correct
26 Correct 46 ms 488 KB Output is correct
27 Correct 36 ms 468 KB Output is correct
28 Correct 39 ms 488 KB Output is correct

Subtask #4-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Incorrect 36 ms 468 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #5-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 10 ms 340 KB Output is correct
3 Correct 9 ms 340 KB Output is correct
4 Correct 9 ms 340 KB Output is correct
5 Correct 8 ms 396 KB Output is correct
6 Correct 8 ms 340 KB Output is correct
7 Correct 8 ms 404 KB Output is correct
8 Correct 10 ms 340 KB Output is correct
9 Correct 8 ms 340 KB Output is correct
10 Correct 8 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 9 ms 340 KB Output is correct
13 Correct 14 ms 396 KB Output is correct
14 Correct 12 ms 404 KB Output is correct
15 Correct 15 ms 404 KB Output is correct
16 Correct 14 ms 340 KB Output is correct
17 Correct 15 ms 396 KB Output is correct
18 Correct 8 ms 340 KB Output is correct
19 Correct 16 ms 340 KB Output is correct
20 Correct 8 ms 400 KB Output is correct
21 Correct 40 ms 480 KB Output is correct
22 Correct 37 ms 468 KB Output is correct
23 Correct 36 ms 468 KB Output is correct
24 Correct 60 ms 468 KB Output is correct
25 Correct 36 ms 468 KB Output is correct
26 Correct 46 ms 488 KB Output is correct
27 Correct 36 ms 468 KB Output is correct
28 Correct 39 ms 488 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 9 ms 408 KB Output is correct
31 Correct 14 ms 340 KB Output is correct
32 Correct 8 ms 404 KB Output is correct
33 Correct 9 ms 340 KB Output is correct
34 Correct 12 ms 416 KB Output is correct
35 Correct 8 ms 400 KB Output is correct
36 Correct 9 ms 340 KB Output is correct
37 Correct 9 ms 400 KB Output is correct
38 Correct 13 ms 392 KB Output is correct
39 Correct 47 ms 468 KB Output is correct
40 Correct 50 ms 468 KB Output is correct
41 Correct 36 ms 468 KB Output is correct
42 Correct 35 ms 424 KB Output is correct
43 Correct 65 ms 492 KB Output is correct
44 Correct 47 ms 504 KB Output is correct
45 Correct 46 ms 516 KB Output is correct
46 Correct 40 ms 468 KB Output is correct
47 Correct 311 ms 956 KB Output is correct
48 Correct 342 ms 956 KB Output is correct
49 Correct 355 ms 944 KB Output is correct
50 Correct 351 ms 952 KB Output is correct
51 Correct 294 ms 1064 KB Output is correct
52 Correct 321 ms 960 KB Output is correct
53 Correct 263 ms 1112 KB Output is correct
54 Correct 290 ms 1060 KB Output is correct

Subtask #5-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Incorrect 36 ms 468 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #6-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 10 ms 340 KB Output is correct
3 Correct 9 ms 340 KB Output is correct
4 Correct 9 ms 340 KB Output is correct
5 Correct 8 ms 396 KB Output is correct
6 Correct 8 ms 340 KB Output is correct
7 Correct 8 ms 404 KB Output is correct
8 Correct 10 ms 340 KB Output is correct
9 Correct 8 ms 340 KB Output is correct
10 Correct 8 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 9 ms 340 KB Output is correct
13 Correct 14 ms 396 KB Output is correct
14 Correct 12 ms 404 KB Output is correct
15 Correct 15 ms 404 KB Output is correct
16 Correct 14 ms 340 KB Output is correct
17 Correct 15 ms 396 KB Output is correct
18 Correct 8 ms 340 KB Output is correct
19 Correct 16 ms 340 KB Output is correct
20 Correct 8 ms 400 KB Output is correct
21 Correct 40 ms 480 KB Output is correct
22 Correct 37 ms 468 KB Output is correct
23 Correct 36 ms 468 KB Output is correct
24 Correct 60 ms 468 KB Output is correct
25 Correct 36 ms 468 KB Output is correct
26 Correct 46 ms 488 KB Output is correct
27 Correct 36 ms 468 KB Output is correct
28 Correct 39 ms 488 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 9 ms 408 KB Output is correct
31 Correct 14 ms 340 KB Output is correct
32 Correct 8 ms 404 KB Output is correct
33 Correct 9 ms 340 KB Output is correct
34 Correct 12 ms 416 KB Output is correct
35 Correct 8 ms 400 KB Output is correct
36 Correct 9 ms 340 KB Output is correct
37 Correct 9 ms 400 KB Output is correct
38 Correct 13 ms 392 KB Output is correct
39 Correct 47 ms 468 KB Output is correct
40 Correct 50 ms 468 KB Output is correct
41 Correct 36 ms 468 KB Output is correct
42 Correct 35 ms 424 KB Output is correct
43 Correct 65 ms 492 KB Output is correct
44 Correct 47 ms 504 KB Output is correct
45 Correct 46 ms 516 KB Output is correct
46 Correct 40 ms 468 KB Output is correct
47 Correct 311 ms 956 KB Output is correct
48 Correct 342 ms 956 KB Output is correct
49 Correct 355 ms 944 KB Output is correct
50 Correct 351 ms 952 KB Output is correct
51 Correct 294 ms 1064 KB Output is correct
52 Correct 321 ms 960 KB Output is correct
53 Correct 263 ms 1112 KB Output is correct
54 Correct 290 ms 1060 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 8 ms 340 KB Output is correct
57 Correct 8 ms 400 KB Output is correct
58 Correct 8 ms 340 KB Output is correct
59 Correct 9 ms 404 KB Output is correct
60 Correct 8 ms 468 KB Output is correct
61 Correct 9 ms 340 KB Output is correct
62 Correct 10 ms 340 KB Output is correct
63 Correct 10 ms 396 KB Output is correct
64 Correct 11 ms 396 KB Output is correct
65 Correct 36 ms 476 KB Output is correct
66 Correct 33 ms 476 KB Output is correct
67 Correct 35 ms 616 KB Output is correct
68 Correct 33 ms 492 KB Output is correct
69 Correct 33 ms 468 KB Output is correct
70 Correct 32 ms 504 KB Output is correct
71 Correct 32 ms 468 KB Output is correct
72 Correct 34 ms 588 KB Output is correct
73 Correct 261 ms 956 KB Output is correct
74 Correct 261 ms 852 KB Output is correct
75 Correct 300 ms 1032 KB Output is correct
76 Correct 290 ms 952 KB Output is correct
77 Correct 254 ms 1068 KB Output is correct
78 Correct 260 ms 1016 KB Output is correct
79 Correct 247 ms 1228 KB Output is correct
80 Correct 278 ms 1060 KB Output is correct
81 Execution timed out 5045 ms 6680 KB Time limit exceeded
82 Halted 0 ms 0 KB -

Subtask #6-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Incorrect 36 ms 468 KB Output isn't correct
6 Halted 0 ms 0 KB -