oj.uz

Submission #821512

# Submission time Handle Problem Language Result Execution time Memory
821512 2023-08-11T10:59:10 Z PVM_pvm Watermelon (INOI20_watermelon) C++17
38 / 100
 2000 ms 3788 KB 
#include<bits/stdc++.h>
using namespace std;
#define MAXX 100007
#define MAXN 13
int b[MAXX],b2[MAXX],n,k;
struct perm
{
    int ch[MAXN];
    perm(int a[])
    {
        for (int q=1;q<=n;q++) ch[q]=a[q];
    }
    void show()
    {
        //cout<<"P:";
        for (int q=1;q<=n;q++) cout<<ch[q]<<" ";
        cout<<"\n";
    }
};
vector<perm> ans;
int cur[MAXN],sb[MAXN];
bool dt[MAXN];
void check()
{
    for (int q=1;q<=n;q++) sb[q]=-1;
    for (int q=1;q<=n;q++) dt[q]=false;
    for (int tm=1;true;tm++)
    {
        bool smyrt=false;
        for (int q=1;q<=n;q++)
        {
            if (dt[q]) continue;
            int next=q+1;
            for (next=q+1;next<=n;next++)
            {
                if (!dt[next]) break;
            }
            if (next>n) break;
            if (cur[next]>cur[q])
            {
                dt[q]=true;
                smyrt=true;
                sb[q]=tm;
            }
        }
        if (!smyrt) break;
    }
    bool pr=true;
    for (int q=1;q<=n;q++)
    {
        if (sb[q]!=b[q]) pr=false;
    }
    if (pr)
    {
        perm spr(cur);
        ans.push_back(spr);
    }
}
int ind[MAXN];
int ind2[MAXN];
bool cmp(perm &a, perm &b){
    for (int q=1;q<=n;q++)
    {
        ind[a.ch[q]] = q;
        ind2[b.ch[q]] = q;
    }
    for (int q=1;q<=n;q++)
    {
        if (ind[q] < ind2[q]) return 1;
        if (ind[q] > ind2[q]) return 0;
    }
    return 0;
}/*
struct node
{
    int sm;
    int pos;
    int lz;
} seg[4*MAXX];
void Initialise(int ind, int l, int r)
{
    if (l==r)
    {
        if (b[l]==-1)
        {
            seg[ind].sm=n*2;
        }
        else
        {
            seg[ind].sm=b[l];
        }
        seg[ind].pos=l;
        seg[ind].lz=0;
        return;
    }
    int mid=(l+r)/2;
    Initialise(ind*2,l,mid);
    Initialise(ind*2+1,mid+1,r);
    if (seg[ind*2].sm<=seg[ind*2+1].sm)
    {
        seg[ind].sm=seg[ind*2].sm;
        seg[ind].pos=seg[ind*2].pos;
    }
    else
    {
        seg[ind].sm=seg[ind*2+1].sm;
        seg[ind].pos=seg[ind*2+1].pos;
    }
    seg[ind].lz=0;
}
void Push(int ind, int l, int r)
{
    if (seg[ind].lz==0) return;
    seg[ind].sm-=seg[ind].lz;
    if (l!=r)
    {
        seg[ind*2].lz+=seg[ind].lz;
        seg[ind*2+1].lz+=seg[ind].lz;
    }
    seg[ind].lz=0;
}
void Update(int ind, int l, int r, int ql, int qr)
{
    Push(ind,l,r);
    if (l>=ql && r<=qr)
    {
        seg[ind].lz++;
        Push(ind,l,r);
        return;
    }
    int mid=(l+r)/2;
    if (ql<=mid) Update(ind*2,l,mid,ql,qr);
    if (qr>=mid+1) Update(ind*2+1,mid+1,r,ql,qr);
    Push(ind*2,l,mid);
    Push(ind*2+1,mid+1,r);
    if (seg[ind*2].sm<=seg[ind*2+1].sm)
    {
        seg[ind].sm=seg[ind*2].sm;
        seg[ind].pos=seg[ind*2].pos;
    }
    else
    {
        seg[ind].sm=seg[ind*2+1].sm;
        seg[ind].pos=seg[ind*2+1].pos;
    }
}
void UpdateCh(int ind, int l, int r, int pos)
{
    Push(ind,l,r);
    if (l==r && l==pos)
    {
        seg[ind].sm=n*2;
        seg[ind].pos=l;
        seg[ind].lz=0;
        return;
    }
    int mid=(l+r)/2;
    if (pos<=mid) UpdateCh(ind*2,l,mid,pos);
    if (pos>=mid+1) UpdateCh(ind*2+1,mid+1,r,pos);
    Push(ind*2,l,mid);
    Push(ind*2+1,mid+1,r);
    if (seg[ind*2].sm<=seg[ind*2+1].sm)
    {
        seg[ind].sm=seg[ind*2].sm;
        seg[ind].pos=seg[ind*2].pos;
    }
    else
    {
        seg[ind].sm=seg[ind*2+1].sm;
        seg[ind].pos=seg[ind*2+1].pos;
    }
}*/
int ansk[MAXX];
int pr1[MAXX];
int chb[MAXX];
int posOfLST[MAXX];
int bfMe[MAXX];
bool finalcheck()
{
    stack<pair<int,int>> st;
    chb[n]=-1;
    //if (chb[n]!=b[n]) return false;
    st.push({ansk[n],n});
    for (int q=n-1;q>=1;q--)
    {
        chb[q]=-2;
        while (true)
        {
            if (st.empty())
            {
                chb[q]=-1;
                st.push({ansk[q],q});
                break;
            }
            int chislo = st.top().first;
            int pos = st.top().second;
            if (ansk[q]>chislo)
            {
                chb[q]=max(chb[q],chb[pos]);
                st.pop();
                continue;
            }
            if (chb[q]==-2) chb[q]=1;
            else chb[q]++;
            st.push({ansk[q],q});
            break;
        }
        //cout<<q<<":"<<chb[q]<<" "<<b[q]<<"\n";
        //if (chb[q]!=b[q]2) return false;
    }
    for (int q=1;q<=n;q++)
    {
        if (chb[q]!=b2[q]) return false;
    }
    return true;
}
int main()
{
    cin>>n>>k;
    if (k!=1)
    {
        for (int q=1;q<=n;q++) cin>>b[q];
        for (int q=1;q<=n;q++) cur[q]=q;
        check();
        while (next_permutation(cur+1,cur+n+1)) check();
        sort(ans.begin(),ans.end(),cmp);
        if (k<ans.size()) ans[k-1].show();
        else cout<<"-1\n";
    }
    else
    {
        for (int q=1;q<=n;q++) cin>>b[q];
        for (int q=1;q<=n;q++) b2[q]=b[q];
        /*if (b[n]!=-1)
        {
            cout<<"-1\n";
            return 0;
        }*/
        int br2=0;
        for (int q=1;q<=n;q++)
        {
            if (b[q]!=-1) br2++;
        }
        if (b[n]==-1) posOfLST[n+2]=n;
        else posOfLST[b[n]]=n;
        for (int q=n-1;q>=1;q--)
        {
            if (b[q]==-1) continue;
            if (b[q]==1) {posOfLST[b[q]]=q;continue;}
            int pos=posOfLST[b[q]-1];
            if (pos==0)
            {
                cout<<"-1\n";
                return 0;
            }
            if (bfMe[pos]!=0)
            {
                cout<<"-1\n";
                return 0;
            }
            bfMe[pos]=q;
            posOfLST[b[q]]=q;
        }
        int dok=1;
        for (int q=1;q<=n;q++)
        {
            if (b[q]==1)
            {
                ansk[q]=dok;
                //cout<<q<<" "<<dok<<"\n";
                dok++;
                int w=bfMe[q];
                while (w!=0)
                {
                    ansk[w]=dok;
                    //cout<<w<<" "<<dok<<"\n";
                    dok++;
                    w=bfMe[w];
                }
            }
        }
        /*
        int tm=0;
        pr1[0]=0;
        for (int q=1;q<=n;q++)
        {
            if (b[q-1]==-1) pr1[q]=q-1;
            else pr1[q]=pr1[q-1];
        }
        Initialise(1,1,n);
        for (tm=1;tm<n;tm++)
        {
            Push(1,1,n);
            int sm=seg[1].sm;
            int pos=seg[1].pos;
            cout<<tm<<" "<<pos<<" "<<sm<<"\n";
            if (sm!=1) break;
            ansk[pos]=tm;
            UpdateCh(1,1,n,pos);
            if (pos!=1) Update(1,1,n,pr1[pos]+1,pos-1);
        }*/
        /*if (tm-1 != br2)
        {
            cout<<"-1\n";
            return 0;
        }*/
        /*int dok=1;
        for (int q=1;q<=n;q++)
        {
            if (b[q]==1)
            {
                ansk[q]=dok;
                dok++;
                int cur=b[q];
                for (int w=q-1;w>=1;w--)
                {
                    if (b[w]!=cur+1) break;
                    ansk[w]=dok;
                    dok++;
                    cur++;
                }
            }
        }*/
        int tm=n;
        for (int q=1;q<=n;q++)
        {
            if (ansk[q]==0)
            {
                ansk[q]=tm;
                tm--;
            }
        }
        if (finalcheck())
        {
            for (int q=1;q<=n;q++)
            {
                cout<<ansk[q]<<" ";
            }
            cout<<"\n";
        }
        else
        {
            cout<<"-1\n";
        }
    }
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:227:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<perm>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  227 |         if (k<ans.size()) ans[k-1].show();
      |             ~^~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 312 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 312 KB Output is correct
12 Correct 369 ms 480 KB Output is correct
13 Correct 444 ms 564 KB Output is correct
14 Correct 365 ms 400 KB Output is correct
15 Correct 403 ms 348 KB Output is correct
16 Correct 369 ms 388 KB Output is correct
17 Correct 371 ms 340 KB Output is correct
18 Correct 33 ms 360 KB Output is correct
19 Correct 385 ms 304 KB Output is correct
20 Correct 378 ms 304 KB Output is correct
21 Correct 366 ms 212 KB Output is correct
22 Correct 416 ms 296 KB Output is correct
23 Correct 381 ms 304 KB Output is correct
24 Correct 390 ms 212 KB Output is correct
25 Correct 379 ms 300 KB Output is correct
26 Correct 377 ms 300 KB Output is correct
27 Correct 371 ms 304 KB Output is correct
28 Correct 377 ms 296 KB Output is correct
29 Correct 382 ms 404 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 3 ms 320 KB Output is correct
32 Correct 4 ms 212 KB Output is correct
33 Correct 4 ms 212 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 312 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 312 KB Output is correct
12 Correct 369 ms 480 KB Output is correct
13 Correct 444 ms 564 KB Output is correct
14 Correct 365 ms 400 KB Output is correct
15 Correct 403 ms 348 KB Output is correct
16 Correct 369 ms 388 KB Output is correct
17 Correct 371 ms 340 KB Output is correct
18 Correct 33 ms 360 KB Output is correct
19 Correct 385 ms 304 KB Output is correct
20 Correct 378 ms 304 KB Output is correct
21 Correct 366 ms 212 KB Output is correct
22 Correct 416 ms 296 KB Output is correct
23 Correct 381 ms 304 KB Output is correct
24 Correct 390 ms 212 KB Output is correct
25 Correct 379 ms 300 KB Output is correct
26 Correct 377 ms 300 KB Output is correct
27 Correct 371 ms 304 KB Output is correct
28 Correct 377 ms 296 KB Output is correct
29 Correct 382 ms 404 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 3 ms 320 KB Output is correct
32 Correct 4 ms 212 KB Output is correct
33 Correct 4 ms 212 KB Output is correct
34 Execution timed out 2067 ms 212 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1620 KB Output is correct
2 Correct 12 ms 924 KB Output is correct
3 Correct 11 ms 1596 KB Output is correct
4 Correct 10 ms 980 KB Output is correct
5 Correct 11 ms 1620 KB Output is correct
6 Correct 14 ms 1580 KB Output is correct
7 Correct 11 ms 1620 KB Output is correct
8 Correct 12 ms 1668 KB Output is correct
9 Correct 11 ms 1660 KB Output is correct
10 Correct 11 ms 1604 KB Output is correct
11 Correct 23 ms 3040 KB Output is correct
12 Correct 22 ms 3008 KB Output is correct
13 Correct 22 ms 3056 KB Output is correct
14 Correct 22 ms 2924 KB Output is correct
15 Correct 19 ms 1612 KB Output is correct
16 Correct 20 ms 1592 KB Output is correct
17 Correct 19 ms 1612 KB Output is correct
18 Correct 20 ms 1536 KB Output is correct
19 Correct 19 ms 1544 KB Output is correct
20 Correct 20 ms 1576 KB Output is correct
21 Correct 19 ms 1584 KB Output is correct
22 Correct 19 ms 1576 KB Output is correct
23 Correct 20 ms 1540 KB Output is correct
24 Correct 34 ms 3528 KB Output is correct
25 Correct 28 ms 3428 KB Output is correct
26 Correct 29 ms 3404 KB Output is correct
27 Correct 29 ms 3396 KB Output is correct
28 Correct 28 ms 3400 KB Output is correct
29 Correct 28 ms 3404 KB Output is correct
30 Correct 8 ms 1196 KB Output is correct
31 Correct 12 ms 1748 KB Output is correct
32 Correct 24 ms 2880 KB Output is correct
33 Correct 24 ms 3136 KB Output is correct
34 Correct 3 ms 596 KB Output is correct
35 Correct 5 ms 840 KB Output is correct
36 Correct 13 ms 1744 KB Output is correct
37 Correct 24 ms 3148 KB Output is correct
38 Correct 23 ms 3028 KB Output is correct
39 Correct 25 ms 3192 KB Output is correct
40 Correct 22 ms 2636 KB Output is correct
41 Correct 30 ms 3788 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1620 KB Output is correct
2 Correct 12 ms 924 KB Output is correct
3 Correct 11 ms 1596 KB Output is correct
4 Correct 10 ms 980 KB Output is correct
5 Correct 11 ms 1620 KB Output is correct
6 Correct 14 ms 1580 KB Output is correct
7 Correct 11 ms 1620 KB Output is correct
8 Correct 12 ms 1668 KB Output is correct
9 Correct 11 ms 1660 KB Output is correct
10 Correct 11 ms 1604 KB Output is correct
11 Correct 23 ms 3040 KB Output is correct
12 Correct 22 ms 3008 KB Output is correct
13 Correct 22 ms 3056 KB Output is correct
14 Correct 22 ms 2924 KB Output is correct
15 Correct 19 ms 1612 KB Output is correct
16 Correct 20 ms 1592 KB Output is correct
17 Correct 19 ms 1612 KB Output is correct
18 Correct 20 ms 1536 KB Output is correct
19 Correct 19 ms 1544 KB Output is correct
20 Correct 20 ms 1576 KB Output is correct
21 Correct 19 ms 1584 KB Output is correct
22 Correct 19 ms 1576 KB Output is correct
23 Correct 20 ms 1540 KB Output is correct
24 Correct 34 ms 3528 KB Output is correct
25 Correct 28 ms 3428 KB Output is correct
26 Correct 29 ms 3404 KB Output is correct
27 Correct 29 ms 3396 KB Output is correct
28 Correct 28 ms 3400 KB Output is correct
29 Correct 28 ms 3404 KB Output is correct
30 Correct 8 ms 1196 KB Output is correct
31 Correct 12 ms 1748 KB Output is correct
32 Correct 24 ms 2880 KB Output is correct
33 Correct 24 ms 3136 KB Output is correct
34 Correct 3 ms 596 KB Output is correct
35 Correct 5 ms 840 KB Output is correct
36 Correct 13 ms 1744 KB Output is correct
37 Correct 24 ms 3148 KB Output is correct
38 Correct 23 ms 3028 KB Output is correct
39 Correct 25 ms 3192 KB Output is correct
40 Correct 22 ms 2636 KB Output is correct
41 Correct 30 ms 3788 KB Output is correct
42 Execution timed out 2077 ms 708 KB Time limit exceeded
43 Halted 0 ms 0 KB -

Subtask #5
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 312 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 312 KB Output is correct
12 Correct 369 ms 480 KB Output is correct
13 Correct 444 ms 564 KB Output is correct
14 Correct 365 ms 400 KB Output is correct
15 Correct 403 ms 348 KB Output is correct
16 Correct 369 ms 388 KB Output is correct
17 Correct 371 ms 340 KB Output is correct
18 Correct 33 ms 360 KB Output is correct
19 Correct 385 ms 304 KB Output is correct
20 Correct 378 ms 304 KB Output is correct
21 Correct 366 ms 212 KB Output is correct
22 Correct 416 ms 296 KB Output is correct
23 Correct 381 ms 304 KB Output is correct
24 Correct 390 ms 212 KB Output is correct
25 Correct 379 ms 300 KB Output is correct
26 Correct 377 ms 300 KB Output is correct
27 Correct 371 ms 304 KB Output is correct
28 Correct 377 ms 296 KB Output is correct
29 Correct 382 ms 404 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 3 ms 320 KB Output is correct
32 Correct 4 ms 212 KB Output is correct
33 Correct 4 ms 212 KB Output is correct
34 Execution timed out 2067 ms 212 KB Time limit exceeded
35 Halted 0 ms 0 KB -