Submission #1181336

#	Time	Username	Problem	Language	Result	Execution time	Memory
1181336		asli_bg	Bali Sculptures (APIO15_sculpture)	C++20	100 / 100	172 ms	484 KiB

sculpture

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

#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;

#define int long long

typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef vector<int> vi;
typedef vector<bool> vb;

#define FOR(i,a) for(int i=0;i<(a);i++)
#define FORE(i,a,b) for(int i=(a);i<(b);i++)

#define all(x) x.begin(),x.end()
#define fi first
#define se second
#define pb push_back
#define sp <<" "<<

#define cont(x) for(auto el:x) cout<<el<<' ';cout<<endl;
#define contp(x) for(auto el:x) cout<<el.fi<<'-'<<el.se<<' ';cout<<endl;

#define DEBUG(x) cout<<#x sp x<<endl;
#define carp(x,y) ((x%MOD)*(y%MOD))%MOD
#define topla(x,y) ((x%MOD)+(y%MOD))%MOD
#define mid (l+r)/2

const int MAXN=2e3+5;
const int MOD=1e9+7;
const int INF=1e18;


signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n,a,b;
    cin>>n>>a>>b;
    vi ar(n+1);
    FORE(i,1,n+1) cin>>ar[i];

    vi pref(n+1,0);
    FORE(i,1,n+1) pref[i]=pref[i-1]+ar[i];

    if(a==1){
        vi dp(n+1); //dp[i] --> i.pozisyondaki current prefimi valid kılan 
                    //min grup sayısı

        int curpref=(1LL<<60)-1;
        for(int bt=59;bt>=0;bt--){ //is it possible to make bt 0
            dp[0]=0;
            FORE(i,1,n+1) dp[i]=INF;

            FORE(i,1,n+1){
                FORE(j,1,i+1){
                    int deg=pref[i]-pref[j-1];
                    if(dp[j-1]==INF) continue;
                    if((deg&curpref)!=deg) continue; //deg curprefin subseti mi
                    if(!(deg&(1LL<<bt))){
                        dp[i]=min(dp[i],dp[j-1]+1);
                    }
                }
            }

            if(a<=dp[n] and dp[n]<=b) curpref-=(1LL<<bt);
        }

        cout<<curpref<<endl;
    }
    else{
        vector<vb> dp(n+1,vb(n+1,false));

        int curpref=(1LL<<60)-1;
        for(int bt=59;bt>=0;bt--){ //is it possible to make bt 0
            FOR(i,n+1){
                FOR(k,b+1){
                    dp[i][k]=false;
                }
            }
            dp[0][0]=true;

            FORE(i,1,n+1){
                FORE(j,1,i+1){
                    int deg=pref[i]-pref[j-1];
                    if((deg&curpref)!=deg) continue;
                    if(deg&(1LL<<bt)) continue;

                    FOR(k,b){
                        if(!dp[j-1][k]) continue;
                        dp[i][k+1]=true;
                    }
                }
            }

            bool f=false;
            FORE(i,a,b+1){
                if(dp[n][i]){
                    curpref-=(1LL<<bt);
                    f=true;
                    break;
                }
            }
        }

        cout<<curpref<<endl;
    }
}   

• Subtask 1: 9 / 9
• Subtask 2: 16 / 16
• Subtask 3: 21 / 21
• Subtask 4: 25 / 25
• Subtask 5: 29 / 29