Submission #739131

#	Time	Username	Problem	Language	Result	Execution time	Memory
739131		huynhyen1609	Matching (CEOI11_mat)	C++14	36 / 100	2083 ms	35720 KiB

mat

/*
                                 ..
                        .:^!7?JJJYJJJJ?77!!~^.
                   .:~7JYYJYYJJ?77?J??JY?JYY5YY?7~:.
                 :!J5YJ??777J?J?????7J?J?7J?J?JYYYYY?~.
               :?5JJ???77!?77?J??J7?7???JJJJ?J777??JYJY?!.
             ^J5YYJJJ77?!7!7!77JJJJ?J77??Y???77!!777!7?JY5?^
           ~JYY??J7??7J?7?!7!7???J?77!777J?JY?J7777?7?????5PY^
         ^Y5J??J??!!???J??77777????J?J77?YY?!~^::::::^!77??YPG7.
        !PY?777?77!7!7J?7!7?????JJ??7J??J^:.           .:!7?75GY:
      .JPJ!7!7?7?7!7!????????J?7??7J?YJ~.                .:!7?JGP^
     .JP?!7!!??7J7!!!?7J????7J7!!?!?7?7.                 .  ^??YG5:
     !P??7777?77??777?7?!7!777!?7J??J?^              :~~:  . ^?7YGY.
    :PY7??77!7~~:::.....:^^~!7??????J?^        .   .7PGGPY: . !?JPB~
   .Y5!!Y77!~:..            .:~7JJJ??J!.       . . .5GGGGP^ ..:J?JBJ
   ~G?!!?7!^.                  .^7JJYYJ7:.      . ..:~???~^^:..77?G5.
   !G!7?77:                     ..?J7~^~!77: .  .. ..^~~~~~~~:.!75B!
   !P77J7^                     ..~?:::^~!7?^ ........^~^^^^^:.^JYG?.
   !G???!:      .~77!:.        ..7?7?77~:....................^JPJ~
   :P5??7:     .JGGGGP!        ......  ..................:^!JP?^
    7BJ7J~     .JGGGGG~       . .....................::::^!7?JJ?!^.
    .YG?Y7^     .~7??~:::.     ..  .... ... ....::::::::::::^?~^!?J7:
     :PPJ??:    ..:^^^^^^:     .  .... ....::::^::::::::.:::^JP~..:75~
      :YGYJ?^.  .^^^^^^^:.        .....:::::::::::...:::..:.::JP!~~7Y~
        ~PP5J?^...::::.... ......::::::::.:.::.:::::.:::::::::^JP?7~.
         :75P5YJ!~^^^^!:...::^:::::::...:......::.....::::::::^^5?
           ?G?Y55PP5YJ!^:::::::::..:..:.:....:...:....::..::::^^7G^
           ~P!^:::::.::::::::::::::...:.::::.:.:::::.:.......:::^PY
            :!JJ7~^::::::::::::::::..:.:.::.:::::...::.........:.JP.
               :5P?^:^:::::^::::::::::::.::::::.:.::.::........::7P:
               .P7::::::::::^::^^::::::::::::::::.:.........:::::J5.
           .   ^G~:^^:::::::^:^^^^^:::::::::^:::::::::::::::^^::75^
               :P!^^^^^^^^:^^^^^^:^:::::^:::^:::::::::::::::^^7JY^
               .!5~^~^^^^^^^^^:^^^^^^^^:^^^^:^^^^^^^^^^^^^^~?55G?
                 ~J?~~~^^~~^~~~^^^^^^^:^^^~^^^^^^^^~~!!!?Y55GP?J!.
                  .~PYJ?77?7777!!!!!!!!!!!!7777??JJJJJ5PP5??J^  ..
                   .777?5J??YYYYY5?7777!!!!~!~~^^::.  .::
                        :!!~:.:^^:

        PENGUIN SO CUTE, I LOVE PENGUIN
*/
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define NAME ""
#define int long long
#define pii pair<int,int>
const int oo=1e9;
const int mod=1e9+7;
const int N=1e6;
const int LG=18;
const int Sqrt=350;
//int hx[]={0,0,1,-1,1,1,-1,-1},hy[]={1,-1,0,0,1,-1,1,-1};
int n,m,a[N+5],bit[N+5],c[N+5],k[N+4];
pii b[N+5];
bool cmp(pii a,pii b)
{
    return a.se<b.se;
}
void up(int i,int val)
{
    while(i<=m)
    {
        bit[i]+=val;
        i+=i&-i;
    }
}
int get(int i)
{
    int g=0;
    while(i>0)
    {
        g+=bit[i];
        i-=i&-i;
    }
    return g;
}
main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0),cout.tie(0);
    //freopen(""NAME".inp","r",stdin);
    //freopen(""NAME".out","w",stdout);
    cin>>n>>m;
    for(int i=1;i<=n;++i)
    {
        int x;cin>>x;
        a[x]=i;
    }
    for(int i=1;i<=m;++i)cin>>b[i].fi,b[i].se=i;
    sort(b+1,b+m+1);
    for(int i=1;i<=m;++i)b[i].fi=i;
    sort(b+1,b+m+1,cmp);
    /*for(int i=1;i<=n;++i)
    {
        c[i]=get(a[i])+1;
        up(a[i],1);
    }*/
    memset(bit,0,sizeof(bit));
    queue<int>q;
    for(int i=1;i<=m;++i)
    {
        if(i>n)up(b[i-n].fi,-1);
        up(b[i].fi,1);
        if(i>=n)
        {
            int d=0;
            for(int j=i-n+1;j<=i;++j)
            {
                int x=get(b[j].fi);
                if(x==a[j-i+n])++d;
                //cout<<x<<' ';
            }//cout<<'\n';
            if(d==n)q.push(i-n+1);
        }
    }
    cout<<q.size()<<'\n';
    while(!q.empty())
    {
        cout<<q.front()<<' ';
        q.pop();
    }
}
/*
         ଘ(੭ˊᵕˋ)੭* ੈ✩‧˚huynhyen1609<3
*/
/*
6 12
2 5 3 4 1 6
10 45 25 30 5 47 31 35 4 50 33 20
*/

Compilation message (stderr)

mat.cpp:79:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   79 | main()
      | ^~~~

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 0 / 9
• Subtask 6: 0 / 9
• Subtask 7: 0 / 9
• Subtask 8: 0 / 9
• Subtask 9: 0 / 8
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10