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Submission #821585

# Submission time Handle Problem Language Result Execution time Memory
821585 2023-08-11T11:51:27 Z PVM_pvm Watermelon (INOI20_watermelon) C++17
31 / 100
 403 ms 3204 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;
}
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 lf[MAXN],rf[MAXN];
void getSecond()
{
    int lst=0;
    for (int q=1;q<=n;q++)
    {
        if (b[q]==-1)
        {
            lf[q]=lst;
        }
        if (b[q]==1)
        {
            lst=q;
        }
    }
    lst=0;
    for (int q=n;q>=1;q--)
    {
        if (b[q]==-1)
        {
            rf[q]=lst;
        }
        if (b[q]==1)
        {
            lst=q;
        }
    }
    int pos=0;
    for (int q=1;q<=n;q++)
    {
        if (lf[q]!=0)
        {
            pos=q;
            break;
        }
    }
    if (pos==0)
    {
        cout<<"-1\n";
        return;
    }
    if (b[n-1]==-1)
    {
        int ch=ansk[n];
        int hpos=0;
        for (int q=1;q<=n;q++)
        {
            if (ansk[q]==ch-1)
            {
                hpos=q;
            }
        }
        swap(ansk[hpos],ansk[n]);
        for (int q=1;q<=n;q++)
        {
            cout<<ansk[q]<<" ";
        }
        cout<<"\n";
        return;
    }
    int him=0;
    for (int q=n;q>=1;q--)
    {
        if (b[q]==1)
        {
            int w=q;
            while (bfMe[w]!=0)
            {
                w=bfMe[w];
            }
            if (w!=q)
            {
                him=q;
                break;
            }
        }
    }
    if (him==0)
    {
        cout<<"-1\n";
        return;
    }
    int him2=0;
    for (int q=him-1;q>=1;q--)
    {
        if (b[q]==1)
        {
            him2=q;
            break;
        }
    }
    if (him2==0)
    {
        cout<<"-1\n";
        return;
    }
    swap(ansk[him],ansk[him2]);
    for (int q=1;q<=n;q++)
    {
        cout<<ansk[q]<<" ";
    }
    cout<<"\n";
}
int main()
{
    cin>>n>>k;
    if (k!=1 && k!=2)
    {
        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";
        return 0;
    }
    if (k==1)
    {
        for (int q=1;q<=n;q++) cin>>b[q];
        for (int q=1;q<=n;q++) b2[q]=b[q];
        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=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";
        }
    }
    else
    {
        for (int q=1;q<=n;q++) cin>>b[q];
        for (int q=1;q<=n;q++) b2[q]=b[q];
        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=n;
        for (int q=1;q<=n;q++)
        {
            if (ansk[q]==0)
            {
                ansk[q]=tm;
                tm--;
            }
        }
        if (finalcheck())
        {
            getSecond();
        }
        else
        {
            cout<<"-1\n";
        }
    }
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:231:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<perm>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  231 |         if (k<ans.size()) ans[k-1].show();
      |             ~^~~~~~~~~~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 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 224 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 376 ms 296 KB Output is correct
15 Correct 373 ms 396 KB Output is correct
16 Correct 370 ms 468 KB Output is correct
17 Correct 380 ms 400 KB Output is correct
18 Correct 33 ms 340 KB Output is correct
19 Correct 402 ms 212 KB Output is correct
20 Correct 399 ms 296 KB Output is correct
21 Correct 377 ms 212 KB Output is correct
22 Correct 389 ms 296 KB Output is correct
23 Correct 383 ms 292 KB Output is correct
24 Correct 374 ms 212 KB Output is correct
25 Correct 377 ms 292 KB Output is correct
26 Correct 373 ms 292 KB Output is correct
27 Correct 379 ms 300 KB Output is correct
28 Correct 403 ms 292 KB Output is correct
29 Correct 374 ms 396 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Incorrect 1 ms 212 KB Output isn't correct
32 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 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 224 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 376 ms 296 KB Output is correct
15 Correct 373 ms 396 KB Output is correct
16 Correct 370 ms 468 KB Output is correct
17 Correct 380 ms 400 KB Output is correct
18 Correct 33 ms 340 KB Output is correct
19 Correct 402 ms 212 KB Output is correct
20 Correct 399 ms 296 KB Output is correct
21 Correct 377 ms 212 KB Output is correct
22 Correct 389 ms 296 KB Output is correct
23 Correct 383 ms 292 KB Output is correct
24 Correct 374 ms 212 KB Output is correct
25 Correct 377 ms 292 KB Output is correct
26 Correct 373 ms 292 KB Output is correct
27 Correct 379 ms 300 KB Output is correct
28 Correct 403 ms 292 KB Output is correct
29 Correct 374 ms 396 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Incorrect 1 ms 212 KB Output isn't correct
32 Halted 0 ms 0 KB -

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1492 KB Output is correct
2 Correct 15 ms 724 KB Output is correct
3 Correct 10 ms 1568 KB Output is correct
4 Correct 13 ms 604 KB Output is correct
5 Correct 13 ms 1528 KB Output is correct
6 Correct 12 ms 1492 KB Output is correct
7 Correct 11 ms 1552 KB Output is correct
8 Correct 11 ms 1480 KB Output is correct
9 Correct 10 ms 1504 KB Output is correct
10 Correct 12 ms 1492 KB Output is correct
11 Correct 21 ms 2864 KB Output is correct
12 Correct 21 ms 2788 KB Output is correct
13 Correct 21 ms 2720 KB Output is correct
14 Correct 25 ms 2836 KB Output is correct
15 Correct 23 ms 980 KB Output is correct
16 Correct 26 ms 1020 KB Output is correct
17 Correct 22 ms 1024 KB Output is correct
18 Correct 21 ms 1048 KB Output is correct
19 Correct 21 ms 980 KB Output is correct
20 Correct 21 ms 1084 KB Output is correct
21 Correct 21 ms 972 KB Output is correct
22 Correct 21 ms 980 KB Output is correct
23 Correct 22 ms 1004 KB Output is correct
24 Correct 32 ms 2892 KB Output is correct
25 Correct 29 ms 2892 KB Output is correct
26 Correct 30 ms 2964 KB Output is correct
27 Correct 29 ms 2892 KB Output is correct
28 Correct 29 ms 2892 KB Output is correct
29 Correct 29 ms 2820 KB Output is correct
30 Correct 10 ms 980 KB Output is correct
31 Correct 12 ms 1528 KB Output is correct
32 Correct 21 ms 2580 KB Output is correct
33 Correct 24 ms 2860 KB Output is correct
34 Correct 3 ms 468 KB Output is correct
35 Correct 5 ms 724 KB Output is correct
36 Correct 13 ms 1492 KB Output is correct
37 Correct 26 ms 2792 KB Output is correct
38 Correct 26 ms 2752 KB Output is correct
39 Correct 27 ms 2828 KB Output is correct
40 Correct 20 ms 2388 KB Output is correct
41 Correct 31 ms 3204 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1492 KB Output is correct
2 Correct 15 ms 724 KB Output is correct
3 Correct 10 ms 1568 KB Output is correct
4 Correct 13 ms 604 KB Output is correct
5 Correct 13 ms 1528 KB Output is correct
6 Correct 12 ms 1492 KB Output is correct
7 Correct 11 ms 1552 KB Output is correct
8 Correct 11 ms 1480 KB Output is correct
9 Correct 10 ms 1504 KB Output is correct
10 Correct 12 ms 1492 KB Output is correct
11 Correct 21 ms 2864 KB Output is correct
12 Correct 21 ms 2788 KB Output is correct
13 Correct 21 ms 2720 KB Output is correct
14 Correct 25 ms 2836 KB Output is correct
15 Correct 23 ms 980 KB Output is correct
16 Correct 26 ms 1020 KB Output is correct
17 Correct 22 ms 1024 KB Output is correct
18 Correct 21 ms 1048 KB Output is correct
19 Correct 21 ms 980 KB Output is correct
20 Correct 21 ms 1084 KB Output is correct
21 Correct 21 ms 972 KB Output is correct
22 Correct 21 ms 980 KB Output is correct
23 Correct 22 ms 1004 KB Output is correct
24 Correct 32 ms 2892 KB Output is correct
25 Correct 29 ms 2892 KB Output is correct
26 Correct 30 ms 2964 KB Output is correct
27 Correct 29 ms 2892 KB Output is correct
28 Correct 29 ms 2892 KB Output is correct
29 Correct 29 ms 2820 KB Output is correct
30 Correct 10 ms 980 KB Output is correct
31 Correct 12 ms 1528 KB Output is correct
32 Correct 21 ms 2580 KB Output is correct
33 Correct 24 ms 2860 KB Output is correct
34 Correct 3 ms 468 KB Output is correct
35 Correct 5 ms 724 KB Output is correct
36 Correct 13 ms 1492 KB Output is correct
37 Correct 26 ms 2792 KB Output is correct
38 Correct 26 ms 2752 KB Output is correct
39 Correct 27 ms 2828 KB Output is correct
40 Correct 20 ms 2388 KB Output is correct
41 Correct 31 ms 3204 KB Output is correct
42 Incorrect 10 ms 1492 KB Output isn't correct
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 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 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 224 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 376 ms 296 KB Output is correct
15 Correct 373 ms 396 KB Output is correct
16 Correct 370 ms 468 KB Output is correct
17 Correct 380 ms 400 KB Output is correct
18 Correct 33 ms 340 KB Output is correct
19 Correct 402 ms 212 KB Output is correct
20 Correct 399 ms 296 KB Output is correct
21 Correct 377 ms 212 KB Output is correct
22 Correct 389 ms 296 KB Output is correct
23 Correct 383 ms 292 KB Output is correct
24 Correct 374 ms 212 KB Output is correct
25 Correct 377 ms 292 KB Output is correct
26 Correct 373 ms 292 KB Output is correct
27 Correct 379 ms 300 KB Output is correct
28 Correct 403 ms 292 KB Output is correct
29 Correct 374 ms 396 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Incorrect 1 ms 212 KB Output isn't correct
32 Halted 0 ms 0 KB -