Submission #566667

#	Time	Username	Problem	Language	Result	Execution time	Memory
566667		ac2hu	Bali Sculptures (APIO15_sculpture)	C++14	100 / 100	480 ms	852 KiB

sculpture

#include <bits/stdc++.h>
#ifdef DEBUG
#include "../templates/debug.h"
#else 
#define deb(x...)
#endif
using namespace std;
#define int long long 
signed main() {
    iostream::sync_with_stdio(false);
    cin.tie(nullptr);cout.tie(nullptr);
    int n, a, b;cin >> n >> a >> b;
    vector<int> Y(n);
    for(auto &e : Y)cin >> e;
    auto solve = [&](int msk, int down){
        bitset<2010> dp[n + 1];
        dp[0][0] = true;
        for(int i = 1;i<=n;i++){
            int tsum = 0;
            for(int j = i;j>=1;j--){
                tsum += Y[j - 1];
                if((((tsum >> down)|msk) == msk)){
                    dp[i] |= (dp[j - 1] << 1);
                }
            }
        }
        // deb(dp[n]);
        bool ans = 0;
        for(int i = a;i<=b;i++)
            ans |= dp[n][i];
        return ans;
    };
    int msk = 0, down = 40;
    while(down >= 0){
        msk *= 2;
        if(!solve(msk, down))msk += 1;
        down--;
    }
    // cout << solve(msk, down);
    cout << msk << "\n";
}

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