Submission #1184586

#	Time	Username	Problem	Language	Result	Execution time	Memory
1184586		mmusom	Matching (CEOI11_mat)	C++20	36 / 100	2096 ms	10308 KiB

mat

#include<bits/stdc++.h>

using namespace std;

//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;

//#define ordered_multiset tree<long long, null_type,less_equal<long long>, rb_tree_tag,tree_order_statistics_node_update>
//#define ordered_set tree<long long, null_type,less<long long>, rb_tree_tag,tree_order_statistics_node_update>

//st.order_of_key
//st.find_by_order

main(){
    #ifndef ONLINE_JUDGE
//        freopen("input.txt", "r", stdin);
//        freopen("output.txt", "w", stdout);
    #endif
    ios_base::sync_with_stdio(NULL);
    cin.tie(NULL);
    cout.tie(NULL);
    int n,m;
    cin>>n>>m;
    vector<int> a(n+1);
    for(int i=1;i<=n;++i){
        cin>>a[i];
    }
    vector<int> b(m+1),c(n+1),d(m+1),ans;
    int l,r,mid,i,j;
    for(i=1;i<=m;++i){
        cin>>b[i];
        if(i>n){
            for(j=d[i-n]+1;j<=n;++j){
                d[c[j]]=j-1;
                c[j-1]=c[j];
            }
        }
        l=0,r=min(i,n);
        while(l<r-1){
            mid=(l+r)/2;
            if(b[c[mid]]<b[i]){
                l=mid;
            }else{
                r=mid;
            }
        }
        for(j=min(i,n);j>r;--j){
            c[j]=c[j-1];
            d[c[j]]=j;
        }
        c[r]=i;
        d[i]=r;
        if(i>=n){
            ans.push_back(i-n+1);
            for(j=1;j<=n;++j){
                if(c[j]-i+n!=a[j]){
                    ans.pop_back();
                    break;
                }
            }
        }
    }
    cout<<ans.size()<<"\n";
    for(int i:ans){
        cout<<i<<" ";
    }
}

Compilation message (stderr)

mat.cpp:15:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   15 | 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