oj.uz

Submission #250066

# Submission time Handle Problem Language Result Execution time Memory
250066 2020-07-16T19:15:38 Z mat_v Rice Hub (IOI11_ricehub) C++14
100 / 100
 652 ms 8312 KB 
#include "ricehub.h"

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>

#define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
#define fb(i,a,b) for(int (i) = (a); (i) >= (b); --(i))
#define mod 998244353
#define xx first
#define yy second
#define all(a) (a).begin(), (a).end()
#define pb push_back
#define ll long long
#define pii pair<int,int>
#define N 400005

using namespace std;
using namespace __gnu_pbds;
typedef tree<int, null_type, less<int>,rb_tree_tag, tree_order_statistics_node_update> ordered_set;/// find_by_order(x)(x+1th) , order_of_key() (strictly less)
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());




int n;
ll niz[N];
ll seg[4 * N][2];
ll suff[N];
ll pref[N];

void init(int node, int l, int r){
    if(l == r){
        seg[node][0] = pref[l];
        seg[node][1] = suff[l];
        return;
    }
    int mid = (l + r) / 2;
    init(node * 2, l, mid);
    init(node * 2 + 1, mid + 1, r);
    ff(j,0,1)seg[node][j] = seg[node * 2][j] + seg[node * 2 + 1][j];
}

ll query(int node, int l, int r, int levo, int desno, int idx){
    if(r < levo || l > desno)return 0;
    if(l >= levo && r <= desno)return seg[node][idx];
    int mid = (l + r) / 2;
    return query(node * 2, l, mid, levo, desno, idx) + query(node * 2 + 1, mid + 1, r, levo, desno, idx);
}

int besthub(int R, int L, int X[], long long B)
{
    n = R;
    ff(i,1,n)niz[i] = X[i - 1];
    sort(niz + 1, niz + 1 + n);
    ff(i,1,n){
        pref[i] = niz[i] - niz[1];
    }
    fb(i,n,1){
        suff[i] = niz[n] - niz[i];
    }
    init(1,1,n);
    int res = 1;
    ff(i,1,n){
        int l = 0;
        int r = min(n - i, i - 1);
        while(l < r){
            ll mid = (l + r + 1) / 2;
            ll prvi = query(1,1,n,i,i + mid,0) - (mid + 1) * pref[i];
            ll drugi = query(1,1,n,i - mid,i,1) - (mid + 1) * suff[i];
            if(prvi + drugi <= B){
                l = mid;
            }
            else r = mid - 1;
        }
        res = max(res, 2*l + 1);
        if(i + l >= n)continue;
        ll prvi = query(1,1,n,i,i + l + 1,0) - (l + 2) * pref[i];
        ll drugi = query(1,1,n,i - l,i,1) - (l + 1) * suff[i];
        if(prvi + drugi <= B)res = max(res, 2*l + 2);
    }
    return res;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 3 ms 384 KB Output is correct
20 Correct 3 ms 384 KB Output is correct
21 Correct 18 ms 768 KB Output is correct
22 Correct 18 ms 768 KB Output is correct
23 Correct 19 ms 768 KB Output is correct
24 Correct 18 ms 768 KB Output is correct
25 Correct 18 ms 768 KB Output is correct
26 Correct 18 ms 768 KB Output is correct
27 Correct 18 ms 800 KB Output is correct
28 Correct 19 ms 768 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 1920 KB Output is correct
2 Correct 90 ms 1920 KB Output is correct
3 Correct 644 ms 7288 KB Output is correct
4 Correct 637 ms 7160 KB Output is correct
5 Correct 265 ms 4216 KB Output is correct
6 Correct 258 ms 4096 KB Output is correct
7 Correct 652 ms 8056 KB Output is correct
8 Correct 648 ms 8056 KB Output is correct
9 Correct 285 ms 4096 KB Output is correct
10 Correct 286 ms 4096 KB Output is correct
11 Correct 636 ms 8312 KB Output is correct
12 Correct 650 ms 8312 KB Output is correct
13 Correct 262 ms 4216 KB Output is correct
14 Correct 258 ms 4216 KB Output is correct
15 Correct 451 ms 7328 KB Output is correct
16 Correct 473 ms 7324 KB Output is correct
17 Correct 585 ms 7884 KB Output is correct
18 Correct 573 ms 7800 KB Output is correct
19 Correct 590 ms 8184 KB Output is correct
20 Correct 606 ms 8184 KB Output is correct