Submission #786827

#	Time	Username	Problem	Language	Result	Execution time	Memory
786827		Bula	Kpart (eJOI21_kpart)	C++17	0 / 100	431 ms	100472 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define int ll
const ll mod=1e9+7;
int dp[1001][50001];

main(){
	int tt;
	cin>>tt;
	while(tt--){
		int n;
		cin>>n;
		vector<int> v(n+1),pref(n+1);
		int s=0;
		for(int i=1;i<=n;i++){
			cin>>v[i];
			s+=v[i];
		}
		for(int i=1;i<=n;i++){
			pref[i]=pref[i-1]+v[i];
		}
		
		for(int i=1;i<=n;i++){
			for(int j=1;j<=50000;j++){
				dp[i][j]=0;
			}
		}
		
		for(int i=1;i<=n;i++){
			dp[i][v[i]]=i;
			for(int j=1;j<=50000;j++){
				if(dp[i-1][j]>0) dp[i][j]=max(dp[i][j],dp[i-1][j]);
				if(j-v[i]>=0 && dp[i-1][j-v[i]]>0) dp[i][j]=max(dp[i][j],dp[i][j-v[i]]);
			}
		}
		vector<int> k;
		for(int i=2;i<=n;i++){
			bool ok = true;
			for(int j=i;j<=n;j++){
				int sum=pref[j]-pref[j-i];
				if(sum%2==1){
					ok = false;
				}else{
					if(dp[j][sum/2]<=j-i) ok = false; 
				}
			}
			if(ok == true) k.pb(i);
		}
		
		cout<<k.size()<<" ";
		for(int i=0;i<k.size();i++){
			cout<<k[i]<<" ";
		}
		cout<<endl;
		
//		for(int i=1;i<=n;i++){
//			for(int j=1;j<=s;j++){
//				cout<<dp[i][j]<<" ";
//			}
//			cout<<endl;
//		}
	}
}

Compilation message (stderr)

Main.cpp:12:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main(){
      | ^~~~
Main.cpp: In function 'int main()':
Main.cpp:56:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |   for(int i=0;i<k.size();i++){
      |               ~^~~~~~~~~

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