Submission #634392

#	Time	Username	Problem	Language	Result	Execution time	Memory
634392		uncripted	Kpart (eJOI21_kpart)	C++11	0 / 100	173 ms	504 KiB

Main

#include<bits/stdc++.h>
using namespace std;	
int las[100005];
int main(){
	int t;
	cin>>t;
	while(t--){
		int n;
		cin>>n;
		int a[n+1];
		int pas[n+1];
		for(int i=1; i<=n; i++){
			cin>>a[i];
			las[i]=-1;
			pas[i]=1;
		}
		las[0]=0;
	
		for(int i=1; i<=n; i++){
			for(int j=50000; j>=0; j--){
				las[j+a[i]]=max(las[j], las[j+a[i]]);
			}
			las[a[i]]=i;
			int s=0;
			
			for(int j=i; j>=1; j--){
				s+=a[j];
				if(s%2==1){
					pas[i-j+1]=0;
	//				cout<<i-j+1<<endl;
					continue;
				}
				if(las[s/2]<j){
					pas[i-j+1]=0;
		//			cout<<i-j+1<<" "<<s<<" "<<i<<" "<<j<<" "<<las[s/2]<<endl;
				}
			}
		//	cout<<"i"<<i;
		}
		int p=0;
		for(int i=2; i<=n; i++){
			if(pas[i]==1){
				p++;
			//	cout<<i<<" ";
			}
		}
		cout<<p<<" ";
		for(int i=2; i<=n; i++){
			if(pas[i]==1){
			//	p++;
				cout<<i<<" ";
			}
		}
		cout<<endl;
		

	}
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 70