Submission #637857

#	Time	Username	Problem	Language	Result	Execution time	Memory
637857		ksu2009en	Kpart (eJOI21_kpart)	C++17	0 / 100	2068 ms	936 KiB

Main

#pragma GCC optimize("O3")
#pragma GCC target("avx,avx2")

#include <iostream>
#include <vector>
#include <string>
#include <math.h>
#include <cmath>
#include <iomanip>
#include <cstdio>
#include <algorithm>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <deque>
#include <bitset>
#include <cstring>

#define endl '\n'

using namespace std;
typedef int ll;

bitset<1000007>bs;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    ll t;
    cin >> t;
    
    while(t--){
        ll n;
        cin >> n;
        
        vector<ll>a(n);
        for(int i = 0; i < n; i++)
            cin >> a[i];
        
        vector<vector<ll>>can(n, vector<ll>(n + 1));
        
        for(int i = 0; i < n; i++){
            bs = 0;
            
            ll sum = 0;
            
            bs[a[i]] = 1;
            
            for(int j = i; j < n; j++){
                sum += a[j];
    
                bs |= (bs << a[j]);
                
                can[i][j - i + 1] = (sum % 2 == 0 ? bs[sum / 2] : 0);
            }
        }
        
        
        vector<ll>ans;
        
        for(int j = 1; j <= n; j++){
            bool ok = false;
            
            for(int i = 0; i + j - 1 < n; i++){
                if(!can[i][j])
                    ok = true;
            }
            
            if(!ok)
                ans.push_back(j);
        }
        cout << ans.size() << ' ';
        
        for(auto i: ans)
            cout << i << ' ';
        cout << endl;
    }
    
    return 0;
}
/*
 3 1
 3 4 5
 1 2 90
 
 */

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