oj.uz

답안 #821305

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
821305 2023-08-11T08:56:15 Z PVM_pvm Watermelon (INOI20_watermelon) C++17
0 / 100
 30 ms 2532 KB 
#include<bits/stdc++.h>
using namespace std;
#define MAXX 100007
#define MAXN 13
int b[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 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];
        Initialise(1,1,n);
        int tm=0;
        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,1,pos-1);
        }
        tm=n;
        for (int q=1;q<=n;q++)
        {
            if (ansk[q]==0)
            {
                cout<<tm<<" ";
                tm--;
            }
            else cout<<ansk[q]<<" ";
        }
        cout<<"\n";
    }
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:184:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<perm>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  184 |         if (k<ans.size()) ans[k-1].show();
      |             ~^~~~~~~~~~~

Subtask #1
0 / 7.0

# 결과 실행 시간 메모리 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 Incorrect 0 ms 312 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# 결과 실행 시간 메모리 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 Incorrect 0 ms 312 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 30 ms 2532 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 30 ms 2532 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 19.0

# 결과 실행 시간 메모리 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 Incorrect 0 ms 312 KB Output isn't correct
5 Halted 0 ms 0 KB -