Submission #610528

#	Time	Username	Problem	Language	Result	Execution time	Memory
610528		nohaxjustsoflo	Bali Sculptures (APIO15_sculpture)	C++17	71 / 100	1083 ms	16084 KiB

sculpture

#include <bits/stdc++.h>
#include <iostream>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<ll,null_type,less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update> order_set;
mt19937 mt_rand(chrono::high_resolution_clock::now().time_since_epoch().count());
//uniform_int_distribution<int> gen; ///(min, max)
//int random() {return gen(mt_rand);}
const int mxN=2001;
const int mod=998244353;
const int mxlogN=40;
const int mxK=26;
const ll inf=1e18;
const int K=600;
int dp[mxN][mxN], a[mxN], n, A, B;
ll check(int i, int k, ll msk)
{
    if(i==n) return k>=A&&k<=B;
    if(~dp[i][k]) return dp[i][k];
    ll sum=0;
    for(int j=i+1; j<=n; j++)
    {
        sum+=a[j-1];
        if((msk&sum)==sum) if(check(j,k+1,msk)) return dp[i][k]=1;
    }
    return dp[i][k]=0;
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    for(int i=0; i<mxN; i++) for(int j=0; j<mxN; j++) dp[i][j]=-1;

    cin >> n >> A >> B;
    for(int i=0; i<n; i++) cin >> a[i];
    ll msk=(1LL<<(mxlogN+1))-1;
    for(int j=0; j<=mxlogN; j++)
    {
        msk^=check(0,0,msk^1LL<<(mxlogN-j))<<(mxlogN-j);
        for(int i=0; i<mxN; i++) for(int j=0; j<mxN; j++) dp[i][j]=-1;
    }
    cout << msk << "\n";
}
/*
6 2 2
8 1 2 1 5 4
*/

• Subtask 1: 9 / 9
• Subtask 2: 16 / 16
• Subtask 3: 21 / 21
• Subtask 4: 25 / 25
• Subtask 5: 0 / 29