Submission #1132774

#	Time	Username	Problem	Language	Result	Execution time	Memory
1132774		lioow	Table Tennis (JOI24_tabletennis)	C++20	0 / 100	0 ms	324 KiB

Main

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define pb push_back
#define int long long
#define ll long long
#define repp(i,x,n) for(int i=x;i<=n;i++)
#define rep(i,x,n) for(int i=x;i<n;i++)
#define repo(i,x,n) for(int i=x;i>=n;i--)
#define cy cout<<"Yes"<<endl
#define cn cout<<"No"<<endl
#define r0 return 0
#define fi first
#define se second
#define liow ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define jelek cout<<"jelek"<<endl
#define pii pair<int,int>
#define all(v) v.begin(),v.end()
#define pi pair<pair<int,int>,pair<int,int>>
#define p3 pair<int,pair<int,int>>
#define fl fflush(stdout)
#define lb long double
#define p4 pair<pair<int,int>,pair<int,int>>
#pragma GCC optimize ("O2")
#pragma GCC optimize ("unroll-loops")  
using namespace std;
int dx[4]={0,0,1,-1};
int dy[4]={1,-1,0,0};
using namespace __gnu_pbds;
template <typename T>
using ordered_set = tree<T,null_type,less<T>,rb_tree_tag, tree_order_statistics_node_update>;
const int mod=1e9+7,maxn=2e5+5,N=4e5,INF=1e18,MOD=998244353,LOG=20;
mt19937_64 rng((unsigned int) chrono::steady_clock::now().time_since_epoch().count());

void solve(){
	int n,k;cin>>n>>k;
	int a[n+k+2];
	repp(i,1,n+k) cin>>a[i];
	vector<int>ans;
	queue<pii>bf;
	bf.push({1,n+k});
	while(!bf.empty()){
		int l=bf.front().fi,r=bf.front().se;bf.pop();
		int ah=l,bh=r;
		int sum=a[l]+a[r];
		int nw=sum;
		while(l<=r){
			if(sum==nw){
				ans.pb(a[l]);
				ans.pb(a[r]);
				nw-=a[l]+a[r];
				l++,r--;
				nw+=a[l]+a[r];
			} else if(nw<sum){
				nw-=a[l];
				l++;
				nw+=a[l];
			} else {
				nw-=a[r];
				r--;
				nw+=a[r];
			}
		}
		if(ans.size()<n){
			ans.clear();
		} else {
			sort(all(ans));
			for(int i=0;i<n;i++) cout<<ans[i]<<" ";
			return;
		}
		if(ah+1<=bh){
			bf.push({ah+1,bh});
			bf.push({ah,bh-1});
		}
		if(ah+2<=bh) bf.push({ah+1,bh-1});
	}
} 
 
signed main(){
  liow;
  int t=1;
 // cin>>t;
  while(t--) solve();
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 4
• Subtask 3: 0 / 23
• Subtask 4: 0 / 30
• Subtask 5: 0 / 15
• Subtask 6: 0 / 23