oj.uz

Submission #821732

# Submission time Handle Problem Language Result Execution time Memory
821732 2023-08-11T14:17:24 Z PVM_pvm Watermelon (INOI20_watermelon) C++17
56 / 100
 2000 ms 3496 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 f1=0;
    for (int q=n;q>=1;q--)
    {
        if (b[q]==1)
        {
            f1=q;
            break;
        }
    }
    bool ima=false;
    bool ima1=false;
    bool minahminus=false;
    int ngc=0,kdc=0;
    for (int q=f1-1;q>=1;q--)
    {
        if (b[q]>1 && !minahminus) ima=true;
        if (b[q]==1 && !minahminus) ima1=true;
        if (b[q]==-1) minahminus=true;
        if (b[q]!=-1 && minahminus)
        {
            if (ansk[q]>ngc)
            {
                ngc=ansk[q];
                kdc=q;
            }
        }
    }
    if (bfMe[f1]!=0)
    {
        if (ima1)
        {
            int ng=0,kd=0;
            for (int q=f1-1;q>=1;q--)
            {
                if (b[q]==-1) break;
                if (ansk[q]>ng && ansk[q]<ansk[f1])
                {
                    ng=ansk[q];
                    kd=q;
                }
            }
            swap(ansk[f1],ansk[kd]);
            printthem();
            return;
        }
        else
        {
            if (kdc!=0)
            {
                swap(ansk[f1],ansk[kdc]);
                printthem();
                return;
            }
            else
            {
                cout<<"-1\n";
                return;
            }
        }
    }
    int f2=0;
    for (int q=f1;q>=1;q--)
    {
        //cout<<q<<" "<<bfMe[q]<<"\n";
        if (bfMe[q]!=0 || b[q]==-1) break;
        f2=q;
    }
    if (f2==1 || b[f2-1]==-1)
    {
        if (kdc!=0)
        {
            swap(ansk[f2],ansk[kdc]);
            printthem();
            return;
        }
        else
        {
            cout<<"-1\n";
            return;
        }
    }
    int ng=0,kd=0;
    for (int q=f1-1;q>=1;q--)
    {
        if (b[q]==-1) break;
        if (ansk[q]>ng && ansk[q]<ansk[f2])
        {
            ng=ansk[q];
            kd=q;
        }
    }
    swap(ansk[f2],ansk[kd]);
    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 'void getSecond()':
Main.cpp:191:10: warning: variable 'ima' set but not used [-Wunused-but-set-variable]
  191 |     bool ima=false;
      |          ^~~
Main.cpp: In function 'int main()':
Main.cpp:286:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<perm>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  286 |         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 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 0 ms 212 KB Output is correct
14 Correct 396 ms 392 KB Output is correct
15 Correct 407 ms 380 KB Output is correct
16 Correct 398 ms 420 KB Output is correct
17 Correct 417 ms 484 KB Output is correct
18 Correct 33 ms 340 KB Output is correct
19 Correct 394 ms 296 KB Output is correct
20 Correct 421 ms 212 KB Output is correct
21 Correct 395 ms 292 KB Output is correct
22 Correct 428 ms 292 KB Output is correct
23 Correct 436 ms 292 KB Output is correct
24 Correct 391 ms 296 KB Output is correct
25 Correct 393 ms 296 KB Output is correct
26 Correct 398 ms 296 KB Output is correct
27 Correct 394 ms 296 KB Output is correct
28 Correct 395 ms 296 KB Output is correct
29 Correct 426 ms 552 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 5 ms 324 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 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 0 ms 212 KB Output is correct
14 Correct 396 ms 392 KB Output is correct
15 Correct 407 ms 380 KB Output is correct
16 Correct 398 ms 420 KB Output is correct
17 Correct 417 ms 484 KB Output is correct
18 Correct 33 ms 340 KB Output is correct
19 Correct 394 ms 296 KB Output is correct
20 Correct 421 ms 212 KB Output is correct
21 Correct 395 ms 292 KB Output is correct
22 Correct 428 ms 292 KB Output is correct
23 Correct 436 ms 292 KB Output is correct
24 Correct 391 ms 296 KB Output is correct
25 Correct 393 ms 296 KB Output is correct
26 Correct 398 ms 296 KB Output is correct
27 Correct 394 ms 296 KB Output is correct
28 Correct 395 ms 296 KB Output is correct
29 Correct 426 ms 552 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 5 ms 324 KB Output is correct
33 Correct 4 ms 212 KB Output is correct
34 Execution timed out 2059 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 13 ms 1596 KB Output is correct
2 Correct 9 ms 696 KB Output is correct
3 Correct 11 ms 1492 KB Output is correct
4 Correct 11 ms 648 KB Output is correct
5 Correct 11 ms 1516 KB Output is correct
6 Correct 11 ms 1492 KB Output is correct
7 Correct 10 ms 1492 KB Output is correct
8 Correct 11 ms 1492 KB Output is correct
9 Correct 11 ms 1492 KB Output is correct
10 Correct 11 ms 1532 KB Output is correct
11 Correct 21 ms 2772 KB Output is correct
12 Correct 21 ms 2768 KB Output is correct
13 Correct 21 ms 2804 KB Output is correct
14 Correct 21 ms 2760 KB Output is correct
15 Correct 18 ms 1072 KB Output is correct
16 Correct 19 ms 1108 KB Output is correct
17 Correct 22 ms 1028 KB Output is correct
18 Correct 19 ms 1008 KB Output is correct
19 Correct 19 ms 1040 KB Output is correct
20 Correct 19 ms 1088 KB Output is correct
21 Correct 23 ms 1036 KB Output is correct
22 Correct 18 ms 1088 KB Output is correct
23 Correct 29 ms 1060 KB Output is correct
24 Correct 43 ms 2964 KB Output is correct
25 Correct 27 ms 2872 KB Output is correct
26 Correct 27 ms 2968 KB Output is correct
27 Correct 26 ms 2924 KB Output is correct
28 Correct 43 ms 2912 KB Output is correct
29 Correct 27 ms 2848 KB Output is correct
30 Correct 11 ms 1012 KB Output is correct
31 Correct 12 ms 1564 KB Output is correct
32 Correct 21 ms 2616 KB Output is correct
33 Correct 23 ms 2800 KB Output is correct
34 Correct 3 ms 468 KB Output is correct
35 Correct 5 ms 724 KB Output is correct
36 Correct 12 ms 1492 KB Output is correct
37 Correct 23 ms 2776 KB Output is correct
38 Correct 24 ms 2868 KB Output is correct
39 Correct 31 ms 2820 KB Output is correct
40 Correct 26 ms 2412 KB Output is correct
41 Correct 29 ms 3156 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 1596 KB Output is correct
2 Correct 9 ms 696 KB Output is correct
3 Correct 11 ms 1492 KB Output is correct
4 Correct 11 ms 648 KB Output is correct
5 Correct 11 ms 1516 KB Output is correct
6 Correct 11 ms 1492 KB Output is correct
7 Correct 10 ms 1492 KB Output is correct
8 Correct 11 ms 1492 KB Output is correct
9 Correct 11 ms 1492 KB Output is correct
10 Correct 11 ms 1532 KB Output is correct
11 Correct 21 ms 2772 KB Output is correct
12 Correct 21 ms 2768 KB Output is correct
13 Correct 21 ms 2804 KB Output is correct
14 Correct 21 ms 2760 KB Output is correct
15 Correct 18 ms 1072 KB Output is correct
16 Correct 19 ms 1108 KB Output is correct
17 Correct 22 ms 1028 KB Output is correct
18 Correct 19 ms 1008 KB Output is correct
19 Correct 19 ms 1040 KB Output is correct
20 Correct 19 ms 1088 KB Output is correct
21 Correct 23 ms 1036 KB Output is correct
22 Correct 18 ms 1088 KB Output is correct
23 Correct 29 ms 1060 KB Output is correct
24 Correct 43 ms 2964 KB Output is correct
25 Correct 27 ms 2872 KB Output is correct
26 Correct 27 ms 2968 KB Output is correct
27 Correct 26 ms 2924 KB Output is correct
28 Correct 43 ms 2912 KB Output is correct
29 Correct 27 ms 2848 KB Output is correct
30 Correct 11 ms 1012 KB Output is correct
31 Correct 12 ms 1564 KB Output is correct
32 Correct 21 ms 2616 KB Output is correct
33 Correct 23 ms 2800 KB Output is correct
34 Correct 3 ms 468 KB Output is correct
35 Correct 5 ms 724 KB Output is correct
36 Correct 12 ms 1492 KB Output is correct
37 Correct 23 ms 2776 KB Output is correct
38 Correct 24 ms 2868 KB Output is correct
39 Correct 31 ms 2820 KB Output is correct
40 Correct 26 ms 2412 KB Output is correct
41 Correct 29 ms 3156 KB Output is correct
42 Correct 11 ms 1512 KB Output is correct
43 Correct 10 ms 852 KB Output is correct
44 Correct 12 ms 1652 KB Output is correct
45 Correct 12 ms 860 KB Output is correct
46 Correct 10 ms 860 KB Output is correct
47 Correct 9 ms 960 KB Output is correct
48 Correct 10 ms 948 KB Output is correct
49 Correct 11 ms 1620 KB Output is correct
50 Correct 12 ms 1632 KB Output is correct
51 Correct 11 ms 1636 KB Output is correct
52 Correct 22 ms 3036 KB Output is correct
53 Correct 21 ms 3020 KB Output is correct
54 Correct 26 ms 1356 KB Output is correct
55 Correct 19 ms 1268 KB Output is correct
56 Correct 24 ms 2776 KB Output is correct
57 Correct 23 ms 3044 KB Output is correct
58 Correct 23 ms 3084 KB Output is correct
59 Correct 22 ms 3020 KB Output is correct
60 Correct 24 ms 3120 KB Output is correct
61 Correct 27 ms 3020 KB Output is correct
62 Correct 22 ms 3212 KB Output is correct
63 Correct 27 ms 3356 KB Output is correct
64 Correct 28 ms 3496 KB Output is correct

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 0 ms 212 KB Output is correct
14 Correct 396 ms 392 KB Output is correct
15 Correct 407 ms 380 KB Output is correct
16 Correct 398 ms 420 KB Output is correct
17 Correct 417 ms 484 KB Output is correct
18 Correct 33 ms 340 KB Output is correct
19 Correct 394 ms 296 KB Output is correct
20 Correct 421 ms 212 KB Output is correct
21 Correct 395 ms 292 KB Output is correct
22 Correct 428 ms 292 KB Output is correct
23 Correct 436 ms 292 KB Output is correct
24 Correct 391 ms 296 KB Output is correct
25 Correct 393 ms 296 KB Output is correct
26 Correct 398 ms 296 KB Output is correct
27 Correct 394 ms 296 KB Output is correct
28 Correct 395 ms 296 KB Output is correct
29 Correct 426 ms 552 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 5 ms 324 KB Output is correct
33 Correct 4 ms 212 KB Output is correct
34 Execution timed out 2059 ms 212 KB Time limit exceeded
35 Halted 0 ms 0 KB -