Submission #73708

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
73708	2018-08-28T17:53:41 Z	MKopchev	Ancient Books (IOI17_books)	C++14	50 / 100	1537 ms	36964 KB

books

#include<bits/stdc++.h>
using namespace std;
const int nmax=1e6+42;
int in[nmax],out[nmax];
int tree_in[nmax*4],tree_out[nmax*4];
void update_in(int node)
{
    tree_in[node*2]+=tree_in[node];
    tree_in[node*2+1]+=tree_in[node];
    tree_in[node]=0;
}
void update_in(int node,int l,int r,int lq,int rq)
{
    //cout<<l<<" "<<r<<" "<<lq<<" "<<rq<<endl;
    if(l==lq&&r==rq)
    {
        tree_in[node]++;
        return;
    }
    update_in(node);
    int av=(l+r)/2;
    if(lq<=av)update_in(node*2,l,av,lq,min(av,rq));
    if(av<rq)update_in(node*2+1,av+1,r,max(av+1,lq),rq);
}
void go_in(int node,int l,int r)
{
    if(l==r)
    {
        in[l]=tree_in[node];
        return;
    }
    update_in(node);
    int av=(l+r)/2;
    go_in(node*2,l,av);
    go_in(node*2+1,av+1,r);
}



void update_out(int node)
{
    tree_out[node*2]+=tree_out[node];
    tree_out[node*2+1]+=tree_out[node];
    tree_out[node]=0;
}
void update_out(int node,int l,int r,int lq,int rq)
{
    //cout<<l<<" "<<r<<" "<<lq<<" "<<rq<<endl;
    if(l==lq&&r==rq)
    {
        tree_out[node]++;
        return;
    }
    update_out(node);
    int av=(l+r)/2;
    if(lq<=av)update_out(node*2,l,av,lq,min(av,rq));
    if(av<rq)update_out(node*2+1,av+1,r,max(av+1,lq),rq);
}
void go_out(int node,int l,int r)
{
    if(l==r)
    {
        out[l]=tree_out[node];
        return;
    }
    update_out(node);
    int av=(l+r)/2;
    go_out(node*2,l,av);
    go_out(node*2+1,av+1,r);
}

long long minimum_walk(vector<int> p, int s)
{
    int n=p.size();
    while(n-1>s&&p[n-1]==n-1){p.pop_back();n--;}
    vector<int> help={};
    int where=0;
    for(where=0;where<s;where++)
    {
        if(p[where]!=where)break;
    }
    for(int i=where;i<n;i++)
        help.push_back(p[i]-where);
    p=help;
    n=p.size();

    if(n==0)return 0;

    /*
    help=p;
    sort(help.begin(),help.end());
    for(int i=0;i<n;i++)
        assert(help[i]==i);
    */
    for(int i=0;i<n;i++)
        if(i!=p[i])
        {
            if(i<p[i])
            {
            update_in(1,0,n-1,i+1,p[i]);
            update_out(1,0,n-1,i,p[i]-1);
            /*
            for(int j=i;j<p[i];j++)
                out[j]++,in[j+1]++;
            */
            }
            else
            {
            update_in(1,0,n-1,p[i],i-1);
            update_out(1,0,n-1,p[i]+1,i);
            /*
            for(int j=i;j>p[i];j--)
                out[j]++,in[j-1]++;
            */
            }
        }
    go_in(1,0,n-1);
    go_out(1,0,n-1);
    /*
    for(int i=0;i<n;i++)
        cout<<in[i]<<" "<<out[i]<<endl;
    */
      int maxi=0;
      for(int i=0;i<n;i++)
      {
            maxi=max(maxi,p[i]);
            if(i==maxi)
            {
                if(i!=n-1)
                {
                    in[i]++;
                    out[i]++;
                    in[i+1]++;
                    out[i+1]++;
                }
                maxi=0;
            }
      }
      for(int i=1;i<n;i++)
      {
            if(in[i-1]<out[i-1])
            {
                assert(0==1);
                out[i]+=out[i-1]-in[i-1];
                in[i-1]=out[i-1];
            }
            else if(in[i-1]>out[i-1])
            {
                assert(0==1);
                in[i]+=in[i-1]-out[i-1];
                out[i-1]=in[i-1];
            }
      }
      assert(in[n-1]==out[n-1]);
      long long ans=0;
      for(int i=0;i<n;i++)
      {
            ans=ans+in[i]+out[i];
      }
      return ans/2;
}
/*
int main()
{
//cout<<minimum_walk({0,2,1,3},2)<<endl;
//cout<<minimum_walk({0, 2, 3, 1}, 0)<<endl;
cout<<minimum_walk({1,0,3,2}, 0)<<endl;
//cout<<minimum_walk({2,3,0,1}, 0)<<endl;
return 0;
}
*/

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	444 KB	Output is correct
3	Correct	3 ms	624 KB	Output is correct
4	Correct	2 ms	624 KB	Output is correct
5	Correct	2 ms	624 KB	Output is correct
6	Correct	2 ms	624 KB	Output is correct
7	Correct	3 ms	624 KB	Output is correct
8	Correct	2 ms	624 KB	Output is correct
9	Correct	3 ms	624 KB	Output is correct
10	Correct	2 ms	624 KB	Output is correct
11	Correct	2 ms	724 KB	Output is correct
12	Correct	3 ms	724 KB	Output is correct
13	Correct	4 ms	724 KB	Output is correct
14	Correct	3 ms	724 KB	Output is correct
15	Correct	2 ms	724 KB	Output is correct
16	Correct	3 ms	724 KB	Output is correct
17	Correct	3 ms	724 KB	Output is correct
18	Correct	3 ms	728 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	444 KB	Output is correct
3	Correct	3 ms	624 KB	Output is correct
4	Correct	2 ms	624 KB	Output is correct
5	Correct	2 ms	624 KB	Output is correct
6	Correct	2 ms	624 KB	Output is correct
7	Correct	3 ms	624 KB	Output is correct
8	Correct	2 ms	624 KB	Output is correct
9	Correct	3 ms	624 KB	Output is correct
10	Correct	2 ms	624 KB	Output is correct
11	Correct	2 ms	724 KB	Output is correct
12	Correct	3 ms	724 KB	Output is correct
13	Correct	4 ms	724 KB	Output is correct
14	Correct	3 ms	724 KB	Output is correct
15	Correct	2 ms	724 KB	Output is correct
16	Correct	3 ms	724 KB	Output is correct
17	Correct	3 ms	724 KB	Output is correct
18	Correct	3 ms	728 KB	Output is correct
19	Correct	3 ms	728 KB	Output is correct
20	Correct	3 ms	728 KB	Output is correct
21	Correct	3 ms	728 KB	Output is correct
22	Correct	3 ms	728 KB	Output is correct
23	Correct	2 ms	728 KB	Output is correct
24	Correct	3 ms	728 KB	Output is correct
25	Correct	4 ms	728 KB	Output is correct
26	Correct	3 ms	748 KB	Output is correct
27	Correct	3 ms	748 KB	Output is correct
28	Correct	3 ms	748 KB	Output is correct
29	Correct	3 ms	748 KB	Output is correct

Subtask #3

28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	444 KB	Output is correct
3	Correct	3 ms	624 KB	Output is correct
4	Correct	2 ms	624 KB	Output is correct
5	Correct	2 ms	624 KB	Output is correct
6	Correct	2 ms	624 KB	Output is correct
7	Correct	3 ms	624 KB	Output is correct
8	Correct	2 ms	624 KB	Output is correct
9	Correct	3 ms	624 KB	Output is correct
10	Correct	2 ms	624 KB	Output is correct
11	Correct	2 ms	724 KB	Output is correct
12	Correct	3 ms	724 KB	Output is correct
13	Correct	4 ms	724 KB	Output is correct
14	Correct	3 ms	724 KB	Output is correct
15	Correct	2 ms	724 KB	Output is correct
16	Correct	3 ms	724 KB	Output is correct
17	Correct	3 ms	724 KB	Output is correct
18	Correct	3 ms	728 KB	Output is correct
19	Correct	3 ms	728 KB	Output is correct
20	Correct	3 ms	728 KB	Output is correct
21	Correct	3 ms	728 KB	Output is correct
22	Correct	3 ms	728 KB	Output is correct
23	Correct	2 ms	728 KB	Output is correct
24	Correct	3 ms	728 KB	Output is correct
25	Correct	4 ms	728 KB	Output is correct
26	Correct	3 ms	748 KB	Output is correct
27	Correct	3 ms	748 KB	Output is correct
28	Correct	3 ms	748 KB	Output is correct
29	Correct	3 ms	748 KB	Output is correct
30	Correct	1475 ms	36752 KB	Output is correct
31	Correct	1537 ms	36864 KB	Output is correct
32	Correct	153 ms	36864 KB	Output is correct
33	Correct	342 ms	36864 KB	Output is correct
34	Correct	414 ms	36864 KB	Output is correct
35	Correct	438 ms	36864 KB	Output is correct
36	Correct	535 ms	36864 KB	Output is correct
37	Correct	685 ms	36864 KB	Output is correct
38	Correct	802 ms	36964 KB	Output is correct
39	Correct	785 ms	36964 KB	Output is correct
40	Correct	924 ms	36964 KB	Output is correct
41	Correct	1176 ms	36964 KB	Output is correct
42	Correct	1111 ms	36964 KB	Output is correct
43	Correct	435 ms	36964 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	3 ms	36964 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2	Halted	0 ms	0 KB	-

Subtask #5

0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	444 KB	Output is correct
3	Correct	3 ms	624 KB	Output is correct
4	Correct	2 ms	624 KB	Output is correct
5	Correct	2 ms	624 KB	Output is correct
6	Correct	2 ms	624 KB	Output is correct
7	Correct	3 ms	624 KB	Output is correct
8	Correct	2 ms	624 KB	Output is correct
9	Correct	3 ms	624 KB	Output is correct
10	Correct	2 ms	624 KB	Output is correct
11	Correct	2 ms	724 KB	Output is correct
12	Correct	3 ms	724 KB	Output is correct
13	Correct	4 ms	724 KB	Output is correct
14	Correct	3 ms	724 KB	Output is correct
15	Correct	2 ms	724 KB	Output is correct
16	Correct	3 ms	724 KB	Output is correct
17	Correct	3 ms	724 KB	Output is correct
18	Correct	3 ms	728 KB	Output is correct
19	Correct	3 ms	728 KB	Output is correct
20	Correct	3 ms	728 KB	Output is correct
21	Correct	3 ms	728 KB	Output is correct
22	Correct	3 ms	728 KB	Output is correct
23	Correct	2 ms	728 KB	Output is correct
24	Correct	3 ms	728 KB	Output is correct
25	Correct	4 ms	728 KB	Output is correct
26	Correct	3 ms	748 KB	Output is correct
27	Correct	3 ms	748 KB	Output is correct
28	Correct	3 ms	748 KB	Output is correct
29	Correct	3 ms	748 KB	Output is correct
30	Correct	1475 ms	36752 KB	Output is correct
31	Correct	1537 ms	36864 KB	Output is correct
32	Correct	153 ms	36864 KB	Output is correct
33	Correct	342 ms	36864 KB	Output is correct
34	Correct	414 ms	36864 KB	Output is correct
35	Correct	438 ms	36864 KB	Output is correct
36	Correct	535 ms	36864 KB	Output is correct
37	Correct	685 ms	36864 KB	Output is correct
38	Correct	802 ms	36964 KB	Output is correct
39	Correct	785 ms	36964 KB	Output is correct
40	Correct	924 ms	36964 KB	Output is correct
41	Correct	1176 ms	36964 KB	Output is correct
42	Correct	1111 ms	36964 KB	Output is correct
43	Correct	435 ms	36964 KB	Output is correct
44	Incorrect	3 ms	36964 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-