Submission #887217

#	Time	Username	Problem	Language	Result	Execution time	Memory
887217		zeta7532	Cigle (COI21_cigle)	C++17	33 / 100	1006 ms	1684 KiB

cigle

#include <bits/stdc++.h>
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
using namespace std;
using ll = int;
const ll mod = 998244353;
#define fi first
#define se second
#define rep(i,n) for(ll i=0;i<n;i++)
#define all(x) x.begin(),x.end()
#define faster ios::sync_with_stdio(false);cin.tie(nullptr)

int main() {
    ll N;
    cin >> N;
    vector<ll> A(N);
    rep(i,N) cin >> A[i];
    vector<vector<ll>> ep(N,vector<ll>(N,0));
    rep(i,N){
        for(ll j=i;j<N;j++){
            set<ll> s;
            ll cnt_l=0;
            for(ll k=j;k>i;k--){
                cnt_l+=A[k];
                s.insert(cnt_l);
            }
            ll cnt=0;
            ll cnt_r=0;
            for(ll k=j+1;k<N;k++){
                ep[j+1][k]=max(ep[j+1][k],ep[i][j]+cnt);
                cnt++;
                cnt_r+=A[k];
                if(s.find(cnt_r)==s.end()) cnt--;
            }
        }
    }
    ll ans=0;
    rep(i,N) ans=max(ans,ep[i][N-1]);
    cout << ans << endl;
    return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 11 / 11
• Subtask 3: 13 / 13
• Subtask 4: 0 / 15
• Subtask 5: 0 / 52