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Submission #615394

# Submission time Handle Problem Language Result Execution time Memory
615394 2022-07-31T08:52:31 Z nohaxjustsoflo Rice Hub (IOI11_ricehub) C++17
100 / 100
 23 ms 3328 KB 
#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=1e5+5;
const int mod=998244353;
const int mxlogN=40;
const int mxK=26;
const int inf=2e9;
const int K=600;
ll a[mxN], p[mxN];
//#include "ricehub.h"
int besthub(int n, int L, int A[], ll B)
{
    for(int i=0; i<n; i++) a[i]=A[i];
    ll s=0;
    for(int i=0; i<n; i++) p[i]=s+=a[i];
    ll ans=1;
    for(ll i=0; i<n; i++)
    {
        ll l=i, r=n;
        //cout << "i " << i << "\n";
        while(r-l>1)
        {
            int m=(l+r)/2;
            ll r2=m;
            ll l2=i;
            ll m2=(l2+r2)/2;
            ll cost=0;
            cost+=p[r2]-p[m2]-(r2-m2)*a[m2];
            cost+=(m2-l2)*a[m2]-((m2?p[m2-1]:0)-(l2?p[l2-1]:0));
            //cout << "tebra " << l2 << " " << m2 << " " << r2 << " " << cost << "\n";
            if(cost<=B) l=m;
            else r=m;
        }
        ans=max(ans,l-i+1);
    }
    return ans;
}
/*
int besthub2(int n, int L, int X[], ll B)
{
    int ans=0;
    for(int i=0; i<n; i++)
    {
        int p=X[i];
        vector<int> a(n);
        for(int i=0; i<n; i++) a[i]=abs(X[i]-p);
        sort(a.begin(),a.end());
        ll x=B;
        int j=0;
        while(j<n&&a[j]<=x) x-=a[j++];
        //cout << "i " << i << " " << j << "\n";
        ans=max(ans,j);
    }
    return ans;
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);


    int n, L, B; cin >> n >> L >> B;
    int a[n];
    for(int i=0; i<n; i++) cin >> a[i];
    cout << besthub(n,L,a,B) << " " << besthub2(n,L,a,B);
    return 0;

    while(1)
    {
        int n=mt_rand()%5+1, L=0, B=mt_rand()%10;
        int a[n];
        for(int i=0; i<n; i++) a[i]=mt_rand()%15;
        sort(a,a+n);
        if(besthub(n,L,a,B)!=besthub2(n,L,a,B))
        {
            cout << n << " " << B << "\n";
            for(int i=0; i<n; i++) cout << a[i] << " ";
            cout << "\n";
            return 0;
        }
    }

}
*/


/*
5 0 7
5 10 11 11 11
5 0 1
0 2 7 10 12
*/

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 1 ms 240 KB Output is correct
5 Correct 0 ms 320 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 320 KB Output is correct
19 Correct 1 ms 328 KB Output is correct
20 Correct 1 ms 324 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 328 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 284 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 324 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 320 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 2 ms 428 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 ms 340 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 712 KB Output is correct
2 Correct 4 ms 852 KB Output is correct
3 Correct 22 ms 3328 KB Output is correct
4 Correct 21 ms 3316 KB Output is correct
5 Correct 9 ms 1748 KB Output is correct
6 Correct 15 ms 1620 KB Output is correct
7 Correct 21 ms 3028 KB Output is correct
8 Correct 20 ms 3000 KB Output is correct
9 Correct 9 ms 1592 KB Output is correct
10 Correct 10 ms 1480 KB Output is correct
11 Correct 22 ms 3252 KB Output is correct
12 Correct 23 ms 3276 KB Output is correct
13 Correct 11 ms 1592 KB Output is correct
14 Correct 10 ms 1620 KB Output is correct
15 Correct 17 ms 2536 KB Output is correct
16 Correct 18 ms 2476 KB Output is correct
17 Correct 20 ms 2900 KB Output is correct
18 Correct 18 ms 2908 KB Output is correct
19 Correct 23 ms 3164 KB Output is correct
20 Correct 22 ms 3156 KB Output is correct