oj.uz

답안 #142776

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
142776 2019-08-10T23:32:25 Z 12tqian Bali Sculptures (APIO15_sculpture) C++14
37 / 100
 16 ms 764 KB 
#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>

using namespace std;
using namespace __gnu_pbds;
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;

const double PI = 4 * atan(1);

#define sz(x) (int)(x).size()
#define ll long long
#define ld long double
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define pii pair <int, int>
#define vi vector<int>
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()
#define vpi vector<pair<int, int>>
#define vpd vector<pair<double, double>>
#define pd pair<double, double>

#define f0r(i,a) for(int i=0;i<a;i++)
#define f1r(i,a,b) for(int i=a;i<b;i++)
#define trav(a, x) for (auto& a : x)

void fast_io(){
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
}
void io(string taskname){
    string fin = taskname + ".in";
    string fout = taskname + ".out";
    const char* FIN = fin.c_str();
    const char* FOUT = fout.c_str();
    freopen(FIN, "r", stdin);
  //  freopen(FOUT, "w", stdout);
    fast_io();
}
const int MAX = 2e3 + 5;
const int INF = 1e9;
vector<ll> y;
int a, b, n;
int dp[MAX][MAX];
ll pre[MAX];
ll get(int l, int r){
    return pre[r] - (l == 0? 0: pre[l-1]);
}
inline int on(ll num, int loc){
    return ((num&(1<<loc))>0? 1:0);
}

template<class T> struct MaxDeque {
    int lo = 0, hi = -1;
    int sz = 0;
    deque<pair<T,int>> d;
    void ins(T x) { // add to back
        x = -x;
        sz++;
       // cout << sz(d) << endl;
        while ((d).size() && d.back().first >= x) d.pop_back();
        d.push_back({x,++hi});
    }

    void del() { // delete from front
       // cout <<"shoot" << endl;
        sz--;
        if (d.front().second == lo++) d.pop_front();
    }
    T get() {
        return -((d).size() ? d.front().first : INF); // change based on T
    }
};
int possible[MAX];
int solve(ll mx, int loc, ll o){
   // cout << mx << " " << loc << " " << o << endl;
    /// check if can have a 0 in b given all values are less than or equal to mx
    f0r(i, n+1){
        f0r(j, n+1){
            dp[i][j] = 0; ///used i intervals to cover up to and including j, whether you can do it
        }
    }
    f0r(i, n){
        if((get(0, i)|o)>mx) continue;
        dp[1][i] = 1-(on(get(0, i), loc));
    }
    f1r(i,2, n+1){
        int bef = 0;
        MaxDeque<int> d;
        f0r(j, n){
            f0r(t, j){
                if((get(t+1, j)|o) <= mx && dp[i-1][t]){
                    dp[i][j] = max(dp[i][j], 1-on(get(t+1, j), loc));
                }
            }
        }
    }
    bool isTrue = true;
    f1r(i, 1, n+1){
        if(possible[i] && dp[i][n-1]){
            isTrue = false;
            break;
        }
    }
    if(isTrue){
        return false;
    }
    f1r(i, 1, n+1){
        possible[i] = min(possible[i], dp[i][n-1]);
    }
    return true;
}
int main(){
  //  io("test");
    fast_io();
    cin >> n >> a >> b;
    ll sum = 0;
    f0r(i, n){
        ll yi;
        cin >> yi;
        y.eb(yi);
        sum += yi;
        if(i == 0) pre[i] = yi;
        else pre[i] = pre[i-1] + yi;
    }
    f1r(i, a, b+1) possible[i] = 1;
    ll ans = 0;
    int bits = floor(log2(sum)) + 1;
    for(int i = bits; i>= 0; i--){
      //  cout << ans << " " << i << endl;
        bool val = solve(ans + (1<<i) - 1, i, ans);
        if(val == false){
            ans += (1<<i);
        }
    }
    cout << ans << endl;
    return 0;
}

Compilation message

sculpture.cpp:1:0: warning: ignoring #pragma comment  [-Wunknown-pragmas]
 #pragma comment(linker, "/stack:200000000")
 
sculpture.cpp: In function 'void io(std::__cxx11::string)':
sculpture.cpp:46:17: warning: unused variable 'FOUT' [-Wunused-variable]
     const char* FOUT = fout.c_str();
                 ^~~~
sculpture.cpp: In function 'int solve(long long int, int, long long int)':
sculpture.cpp:99:13: warning: unused variable 'bef' [-Wunused-variable]
         int bef = 0;
             ^~~
sculpture.cpp: In function 'void io(std::__cxx11::string)':
sculpture.cpp:47:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen(FIN, "r", stdin);
     ~~~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 248 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 632 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 3 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 3 ms 376 KB Output is correct
23 Correct 3 ms 504 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 3 ms 504 KB Output is correct
27 Incorrect 2 ms 376 KB Output isn't correct
28 Halted 0 ms 0 KB -

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 424 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 504 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 3 ms 504 KB Output is correct
24 Correct 3 ms 504 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 504 KB Output is correct
27 Correct 3 ms 504 KB Output is correct
28 Correct 3 ms 508 KB Output is correct
29 Correct 3 ms 508 KB Output is correct
30 Correct 3 ms 504 KB Output is correct
31 Correct 3 ms 504 KB Output is correct
32 Correct 3 ms 504 KB Output is correct
33 Correct 5 ms 632 KB Output is correct
34 Correct 4 ms 632 KB Output is correct
35 Correct 4 ms 632 KB Output is correct
36 Correct 4 ms 632 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 404 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 504 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 3 ms 504 KB Output is correct
18 Correct 4 ms 504 KB Output is correct
19 Correct 4 ms 632 KB Output is correct
20 Correct 4 ms 504 KB Output is correct
21 Correct 4 ms 504 KB Output is correct
22 Correct 4 ms 504 KB Output is correct
23 Correct 4 ms 504 KB Output is correct
24 Correct 4 ms 516 KB Output is correct
25 Correct 6 ms 632 KB Output is correct
26 Correct 8 ms 632 KB Output is correct
27 Correct 10 ms 760 KB Output is correct
28 Correct 12 ms 760 KB Output is correct
29 Correct 11 ms 760 KB Output is correct
30 Correct 16 ms 764 KB Output is correct
31 Correct 12 ms 760 KB Output is correct
32 Correct 12 ms 760 KB Output is correct

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 380 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Incorrect 2 ms 376 KB Output isn't correct
28 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Incorrect 3 ms 376 KB Output isn't correct
15 Halted 0 ms 0 KB -