Submission #948680

#	Time	Username	Problem	Language	Result	Execution time	Memory
948680		steveonalex	Bali Sculptures (APIO15_sculpture)	C++14	71 / 100	1069 ms	604 KiB

sculpture

#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define MASK(i) (1ULL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()
 
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
 
ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ll mask){return __builtin_ctzll(mask);}
int logOf(ll mask){return 63 - __builtin_clzll(mask);}
 
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}
 
template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b) {a = b; return true;}
        return false;
    }
 
template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b) {a = b; return true;}
        return false;
    }
 
template <class T>
    void printArr(T& container, string separator = " ", string finish = "\n", ostream &out = cout){
        for(auto item: container) out << item << separator;
        out << finish;
    }
 
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }

const int N = 109; 
int n, L, R; 
ll a[N];
bool valid[N][N];
int dp[N][N];

bool isSubMask(ll x, ll y){
    return ((x & y) == x) && ((x | y) == y);
}
 
int main(void){
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    cin >> n >> L >> R;
    for(int i= 1; i<=n; ++i) cin >> a[i];

    ll ans = 0;
    for(int bit = 40; bit >= 0; --bit){
        ans = ans * 2;
        for(int i = 1; i<=n; ++i){
            ll sum = 0;
            for(int j = i; j<=n; ++j){
                sum += a[j];
                valid[i][j] = isSubMask(sum >> bit, ans);
            }
        }
        memset(dp, 0, sizeof dp);
        dp[0][0] = 1;
        bool check = false;
        for(int layer = 1; layer <= R; ++layer){
            for(int i = 1; i<=n; ++i)
            for(int j = i; j>=1; --j) if (dp[layer-1][j-1] && valid[j][i]) {
                dp[layer][i] = true;
            }
            if (layer >= L && dp[layer][n]){
                check = true; 
                break;
            }
        }
        if (!check) ans++;
    }
    cout << ans << "\n";
 
    return 0;
}

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