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Submission #796333

# Submission time Handle Problem Language Result Execution time Memory
796333 2023-07-28T09:50:28 Z amirhoseinfar1385 Abracadabra (CEOI22_abracadabra) C++17
0 / 100
 242 ms 18476 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn=200000+10;
int n,q;
int all[maxn],res[maxn],link[maxn];
set<int>st;

void solve(int v){
	st.clear();
	st.insert(n+1);
	for(int i=1;i<=n;i++){
		link[all[i]]=i;
	}
	int now=n;
	int ted=n/2;
	for(int i=n;i>=1;i--){
		//<<i<<endl;
		auto x=*st.lower_bound(link[i]);
		if(x==link[i])
		{
			continue;
		}
		int len=x-link[i];
		int z=0;
		if(ted>0){
			int f=min((len-1)/ted,v);
			z=len-f*ted;
			v-=f;
			ted-=z;
		}
		else{
			z=len;
		}
		//<<len<<" "<<ted<<" "<<z<<endl; 
		for(int j=z-1;j>=0;j--){
			//<<j<<" "<<link[i]<<" "<<all[link[i]+j]<<" "<<len<<" "<<now<<endl;
			res[now]=all[link[i]+j];
			st.insert(link[i]+j);
			now--;
			//<<"salam"<<endl;
		}
	}
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>q;
	for(int i=1;i<=n;i++){
		cin>>all[i];
	}
	int u,v;
	cin>>v>>u;
	solve(v);
	int lastv=v;
	cout<<res[u]<<"\n";
	for(int i=1;i<q;i++){
		cin>>v>>u;
		if(lastv!=v){
			assert(0);
			solve(v);
			lastv=v;
		}
		cout<<res[u]<<"\n";
	}
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 596 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Incorrect 242 ms 18476 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Runtime error 32 ms 12376 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 596 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -