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Submission #821622

# Submission time Handle Problem Language Result Execution time Memory
821622 2023-08-11T12:10:37 Z PVM_pvm Watermelon (INOI20_watermelon) C++17
31 / 100
 419 ms 3136 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 printthem()
{
        for (int q=1;q<=n;q++)
        {
            cout<<ansk[q]<<" ";
        }
        cout<<"\n";
}
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]);
        printthem();
        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)
    {
            int f1=0;
    for (int q=n;q>=1;q--)
    {
        if (b[q]==1)
        {
            f1=q;
            break;
        }
    }
    bool minahminus=false;
    int him4=0;
    for (int q=f1;q>=1;q--)
    {
        if (b[q]==-1) minahminus=true;
        if (b[q]==1 && minahminus)
        {
            him4=q;
            while (bfMe[him4]!=0)
            {
                him4=bfMe[him4];
            }
        }
    }
    if (him4!=0)
    {
        swap(ansk[him4],ansk[f1]);
        printthem();
        return;
    }
        if (him==0)
        {
            cout<<"-1\n";
        }
        return;
    }
    int him2=0;
    for (int q=him-1;q>=1;q--)
    {
        if (b[q]==1)
        {
            him2=q;
            while (bfMe[him2]!=0)
            {
                him2=bfMe[him2];
            }
            break;
        }
    }
    if (him2==0)
    {
            int f1=0;
            for (int q=n;q>=1;q--)
            {
                if (b[q]==1)
                {
                    f1=q;
                    break;
                }
            }
            bool minahminus=false;
            int him4=0;
            for (int q=f1;q>=1;q--)
            {
                if (b[q]==-1) minahminus=true;
                if (b[q]==1 && minahminus)
                {
                    him4=q;
                    while (bfMe[him4]!=0)
                    {
                        him4=bfMe[him4];
                    }
                }
            }
            if (him4!=0)
            {
                swap(ansk[him4],ansk[f1]);
                printthem();
                return;
            }
        cout<<"-1\n";
        return;
    }
    swap(ansk[him],ansk[him2]);
    printthem();
}
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:296:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<perm>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  296 |         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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 394 ms 476 KB Output is correct
15 Correct 379 ms 392 KB Output is correct
16 Correct 401 ms 424 KB Output is correct
17 Correct 380 ms 392 KB Output is correct
18 Correct 36 ms 464 KB Output is correct
19 Correct 394 ms 212 KB Output is correct
20 Correct 380 ms 292 KB Output is correct
21 Correct 401 ms 212 KB Output is correct
22 Correct 399 ms 296 KB Output is correct
23 Correct 393 ms 296 KB Output is correct
24 Correct 380 ms 296 KB Output is correct
25 Correct 379 ms 296 KB Output is correct
26 Correct 373 ms 296 KB Output is correct
27 Correct 419 ms 212 KB Output is correct
28 Correct 398 ms 296 KB Output is correct
29 Correct 380 ms 396 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Incorrect 0 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 394 ms 476 KB Output is correct
15 Correct 379 ms 392 KB Output is correct
16 Correct 401 ms 424 KB Output is correct
17 Correct 380 ms 392 KB Output is correct
18 Correct 36 ms 464 KB Output is correct
19 Correct 394 ms 212 KB Output is correct
20 Correct 380 ms 292 KB Output is correct
21 Correct 401 ms 212 KB Output is correct
22 Correct 399 ms 296 KB Output is correct
23 Correct 393 ms 296 KB Output is correct
24 Correct 380 ms 296 KB Output is correct
25 Correct 379 ms 296 KB Output is correct
26 Correct 373 ms 296 KB Output is correct
27 Correct 419 ms 212 KB Output is correct
28 Correct 398 ms 296 KB Output is correct
29 Correct 380 ms 396 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Incorrect 0 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 10 ms 688 KB Output is correct
3 Correct 11 ms 1492 KB Output is correct
4 Correct 10 ms 820 KB Output is correct
5 Correct 14 ms 1484 KB Output is correct
6 Correct 11 ms 1488 KB Output is correct
7 Correct 11 ms 1492 KB Output is correct
8 Correct 11 ms 1548 KB Output is correct
9 Correct 11 ms 1504 KB Output is correct
10 Correct 12 ms 1492 KB Output is correct
11 Correct 22 ms 2768 KB Output is correct
12 Correct 25 ms 2820 KB Output is correct
13 Correct 22 ms 2792 KB Output is correct
14 Correct 22 ms 2828 KB Output is correct
15 Correct 19 ms 1024 KB Output is correct
16 Correct 19 ms 1000 KB Output is correct
17 Correct 19 ms 1008 KB Output is correct
18 Correct 19 ms 1020 KB Output is correct
19 Correct 19 ms 1036 KB Output is correct
20 Correct 20 ms 980 KB Output is correct
21 Correct 19 ms 1084 KB Output is correct
22 Correct 19 ms 1108 KB Output is correct
23 Correct 22 ms 996 KB Output is correct
24 Correct 29 ms 2900 KB Output is correct
25 Correct 29 ms 2932 KB Output is correct
26 Correct 29 ms 2892 KB Output is correct
27 Correct 28 ms 2888 KB Output is correct
28 Correct 28 ms 2892 KB Output is correct
29 Correct 28 ms 2860 KB Output is correct
30 Correct 8 ms 980 KB Output is correct
31 Correct 13 ms 1492 KB Output is correct
32 Correct 23 ms 2508 KB Output is correct
33 Correct 24 ms 2812 KB Output is correct
34 Correct 3 ms 468 KB Output is correct
35 Correct 6 ms 724 KB Output is correct
36 Correct 13 ms 1508 KB Output is correct
37 Correct 24 ms 2828 KB Output is correct
38 Correct 22 ms 2768 KB Output is correct
39 Correct 25 ms 2860 KB Output is correct
40 Correct 22 ms 2364 KB Output is correct
41 Correct 30 ms 3136 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 10 ms 688 KB Output is correct
3 Correct 11 ms 1492 KB Output is correct
4 Correct 10 ms 820 KB Output is correct
5 Correct 14 ms 1484 KB Output is correct
6 Correct 11 ms 1488 KB Output is correct
7 Correct 11 ms 1492 KB Output is correct
8 Correct 11 ms 1548 KB Output is correct
9 Correct 11 ms 1504 KB Output is correct
10 Correct 12 ms 1492 KB Output is correct
11 Correct 22 ms 2768 KB Output is correct
12 Correct 25 ms 2820 KB Output is correct
13 Correct 22 ms 2792 KB Output is correct
14 Correct 22 ms 2828 KB Output is correct
15 Correct 19 ms 1024 KB Output is correct
16 Correct 19 ms 1000 KB Output is correct
17 Correct 19 ms 1008 KB Output is correct
18 Correct 19 ms 1020 KB Output is correct
19 Correct 19 ms 1036 KB Output is correct
20 Correct 20 ms 980 KB Output is correct
21 Correct 19 ms 1084 KB Output is correct
22 Correct 19 ms 1108 KB Output is correct
23 Correct 22 ms 996 KB Output is correct
24 Correct 29 ms 2900 KB Output is correct
25 Correct 29 ms 2932 KB Output is correct
26 Correct 29 ms 2892 KB Output is correct
27 Correct 28 ms 2888 KB Output is correct
28 Correct 28 ms 2892 KB Output is correct
29 Correct 28 ms 2860 KB Output is correct
30 Correct 8 ms 980 KB Output is correct
31 Correct 13 ms 1492 KB Output is correct
32 Correct 23 ms 2508 KB Output is correct
33 Correct 24 ms 2812 KB Output is correct
34 Correct 3 ms 468 KB Output is correct
35 Correct 6 ms 724 KB Output is correct
36 Correct 13 ms 1508 KB Output is correct
37 Correct 24 ms 2828 KB Output is correct
38 Correct 22 ms 2768 KB Output is correct
39 Correct 25 ms 2860 KB Output is correct
40 Correct 22 ms 2364 KB Output is correct
41 Correct 30 ms 3136 KB Output is correct
42 Incorrect 10 ms 1592 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 394 ms 476 KB Output is correct
15 Correct 379 ms 392 KB Output is correct
16 Correct 401 ms 424 KB Output is correct
17 Correct 380 ms 392 KB Output is correct
18 Correct 36 ms 464 KB Output is correct
19 Correct 394 ms 212 KB Output is correct
20 Correct 380 ms 292 KB Output is correct
21 Correct 401 ms 212 KB Output is correct
22 Correct 399 ms 296 KB Output is correct
23 Correct 393 ms 296 KB Output is correct
24 Correct 380 ms 296 KB Output is correct
25 Correct 379 ms 296 KB Output is correct
26 Correct 373 ms 296 KB Output is correct
27 Correct 419 ms 212 KB Output is correct
28 Correct 398 ms 296 KB Output is correct
29 Correct 380 ms 396 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Incorrect 0 ms 212 KB Output isn't correct
32 Halted 0 ms 0 KB -