Submission #914572

#	Time	Username	Problem	Language	Result	Execution time	Memory
914572		efedmrlr	Kpart (eJOI21_kpart)	C++17	30 / 100	2039 ms	1168 KiB

Main

// #pragma GCC optimize("O3,Ofast,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>

using namespace std;


#define lli long long int
#define MP make_pair
#define pb push_back
#define REP(i,n) for(int i = 0; (i) < (n); (i)++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()


void fastio() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
}


const double EPS = 0.00001;
const int INF = 1e9+500;
const int N = 1e3+5;
const int MX = 1e5 + 5;
const int ALPH = 26;
const int LGN = 25;
constexpr int MOD = 1e9+7;
int n,m,q;


inline void solve() {
    cin>>n;
    vector<int> dp(MX, 0);
    vector<int> pref(n + 3, 0);
    vector<int> valid(n + 3, 1);
    vector<int> a(n + 3, 0);
    for(int i = 1; i<=n; i++) {
        cin>>a[i];
        pref[i] = a[i] + pref[i - 1];
    }
    dp[0] = INF;
    for(int i = 1; i<=n; i++) {
        for(int v = MX - 1; v>=0; v--) {
            if(v - a[i] < 0) continue;
            dp[v] = max(dp[v], min(dp[v - a[i]] , i));
        }
        for(int j = 1; j<=i; j++) {
            int len = i - j + 1;
            int val = pref[i] - pref[j - 1];
            if((val & 1) || (dp[val / 2] < j)) {
                valid[len] = 0;
            }
        }

    }
    int cnt = 0;
    for(int i = 1; i<=n; i++) cnt += valid[i]; 
    cout<<cnt<<" ";
    for(int i = 1; i<=n; i++) {
        if(valid[i]) cout<<i<<" ";
    }
    cout<<"\n";
}
 
signed main() {

    fastio();
    int test = 1;
    cin>>test;
    while(test--) {
        solve();
    }
    
}

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