oj.uz

Submission #821442

# Submission time Handle Problem Language Result Execution time Memory
821442 2023-08-11T10:21:26 Z PVM_pvm Watermelon (INOI20_watermelon) C++17
7 / 100
 2000 ms 1088 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];
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--)
    {
        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)
            {
                st.pop();
                continue;
            }
            chb[q]=pos-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++;
        }
        int tm=0;
        /*pr1[0]=0;
        for (int q=1;q<=n;q++)
        {
            if (b[q-1]<b[q]) 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;
            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];
                b[q]=-1;
                for (int w=q-1;w>=1;w--)
                {
                    if (b[w]!=cur+1) break;
                    ansk[w]=dok;
                    dok++;
                    cur++;
                    b[w]=-1;
                }
            }
        }
        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:222:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<perm>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  222 |         if (k<ans.size()) ans[k-1].show();
      |             ~^~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 466 ms 516 KB Output is correct
13 Correct 474 ms 608 KB Output is correct
14 Correct 453 ms 388 KB Output is correct
15 Correct 457 ms 460 KB Output is correct
16 Correct 498 ms 472 KB Output is correct
17 Correct 491 ms 400 KB Output is correct
18 Correct 46 ms 352 KB Output is correct
19 Correct 468 ms 312 KB Output is correct
20 Correct 484 ms 296 KB Output is correct
21 Correct 561 ms 316 KB Output is correct
22 Correct 450 ms 300 KB Output is correct
23 Correct 552 ms 300 KB Output is correct
24 Correct 448 ms 300 KB Output is correct
25 Correct 480 ms 296 KB Output is correct
26 Correct 437 ms 344 KB Output is correct
27 Correct 480 ms 316 KB Output is correct
28 Correct 521 ms 300 KB Output is correct
29 Correct 527 ms 400 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 6 ms 324 KB Output is correct
32 Correct 4 ms 312 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 1 ms 212 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 466 ms 516 KB Output is correct
13 Correct 474 ms 608 KB Output is correct
14 Correct 453 ms 388 KB Output is correct
15 Correct 457 ms 460 KB Output is correct
16 Correct 498 ms 472 KB Output is correct
17 Correct 491 ms 400 KB Output is correct
18 Correct 46 ms 352 KB Output is correct
19 Correct 468 ms 312 KB Output is correct
20 Correct 484 ms 296 KB Output is correct
21 Correct 561 ms 316 KB Output is correct
22 Correct 450 ms 300 KB Output is correct
23 Correct 552 ms 300 KB Output is correct
24 Correct 448 ms 300 KB Output is correct
25 Correct 480 ms 296 KB Output is correct
26 Correct 437 ms 344 KB Output is correct
27 Correct 480 ms 316 KB Output is correct
28 Correct 521 ms 300 KB Output is correct
29 Correct 527 ms 400 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 6 ms 324 KB Output is correct
32 Correct 4 ms 312 KB Output is correct
33 Correct 4 ms 212 KB Output is correct
34 Execution timed out 2057 ms 212 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 1088 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 1088 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 466 ms 516 KB Output is correct
13 Correct 474 ms 608 KB Output is correct
14 Correct 453 ms 388 KB Output is correct
15 Correct 457 ms 460 KB Output is correct
16 Correct 498 ms 472 KB Output is correct
17 Correct 491 ms 400 KB Output is correct
18 Correct 46 ms 352 KB Output is correct
19 Correct 468 ms 312 KB Output is correct
20 Correct 484 ms 296 KB Output is correct
21 Correct 561 ms 316 KB Output is correct
22 Correct 450 ms 300 KB Output is correct
23 Correct 552 ms 300 KB Output is correct
24 Correct 448 ms 300 KB Output is correct
25 Correct 480 ms 296 KB Output is correct
26 Correct 437 ms 344 KB Output is correct
27 Correct 480 ms 316 KB Output is correct
28 Correct 521 ms 300 KB Output is correct
29 Correct 527 ms 400 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 6 ms 324 KB Output is correct
32 Correct 4 ms 312 KB Output is correct
33 Correct 4 ms 212 KB Output is correct
34 Execution timed out 2057 ms 212 KB Time limit exceeded
35 Halted 0 ms 0 KB -