Submission #1086960

#	Time	Username	Problem	Language	Result	Execution time	Memory
1086960		MrPavlito	Rice Hub (IOI11_ricehub)	C++17	68 / 100	72 ms	1884 KiB

ricehub

#include "ricehub.h"
#include <bits/stdc++.h>
//#define int long long
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define sc second
#define endl "\n"
#define pii pair<int,int>


using namespace std;

const int MAXN = 1e5+5;
const int mod7 = 1e9+7;
const long long inf = 1e18;

int n;

int besthub(int R, int L, int X[], long long B)
{
    n = R;
    if(n <= 5000 && L<=1e6 && B<= 2e9)
    {
        int mx = 0;
        for(int i=0; i<n; i++)
        {
            int l = i;
            int r = i;
            long long trsum = 0;
            while(trsum <= B)
            {
                if(l == 0 && r!=n-1 && trsum + (X[r+1] - X[i]) <= B)
                {
                    trsum += (X[++r] - X[i]);
                }
                else if(r == n-1 && l!=0 && trsum + (X[i] - X[l-1]) <= B)
                {
                   trsum += (X[i] - X[--l]);
                }
                else if(l!=0 && r!=n-1 && (X[i] - X[l-1]) >= (X[r+1] - X[i]) && trsum+(X[r+1] - X[i])<=B)
                {
                    trsum+=(X[++r] - X[i]);
                }
                else if(l!=0 && r!=n-1 && (X[i] - X[l-1]) <= (X[r+1] - X[i])&& trsum+(X[i] - X[l-1])<=B)
                {
                    trsum+=(X[i] - X[--l]);
                }
                else break;
            }
            mx = max(mx, r-l+1);
        }
        return mx;
    }
    else
    {
        int l = 0;int r =1;
        int i =0;
        long long trsum = 0;
        int cntr = 0;
        int cntl =0;
        int mx = 0;
        while(r<n)
        {
            while(r<n)
            {
                if(trsum+ X[r] - X[i] <= B)
                {
                    trsum+= X[r++] - X[i];
                    cntr++;
                }
                else if(trsum > B && l<i && X[r] - X[i] < X[i] - X[l] && trsum+ (X[r] - X[i]) - (X[i] - X[l]) <= B)
                {

                    trsum -= (X[i] - X[l]);
                    trsum += (X[r] - X[i]);
                    l++;
                    r++;
                }
                else if(trsum > B && l<i)
                {
                    cntl--;
                    trsum -= (X[i] - X[l++]);
                }
                else break;
            }
            mx = max(mx, r-l);
            i++;
            trsum += (i-l) *1ll * (X[i] - X[i-1]);
            trsum -= (r-i) *1ll * (X[i] - X[i-1]);

        }
        return mx;
    }

}

• Subtask 1: 17 / 17
• Subtask 2: 25 / 25
• Subtask 3: 26 / 26
• Subtask 4: 0 / 32