Submission #533621

#	Time	Username	Problem	Language	Result	Execution time	Memory
533621		__Variatto	Rice Hub (IOI11_ricehub)	C++17	100 / 100	15 ms	3304 KiB

ricehub

#include <bits/stdc++.h>
#include "ricehub.h"
using namespace std;
#define pb push_back
#define fi first
#define se second
#define ll long long
const ll MAX=1e5+10;
ll n, l, b, pref[MAX], t[MAX];
bool spr(ll x){
    for(ll i=1; i<=n-x+1; i++){
        ll mid=(i+i+x-1)/2;
        ll lewo=pref[mid-1]-pref[i-1];
        ll prawo=pref[i+x-1]-pref[mid];
        if((mid-i)*t[mid]-lewo+prawo-(i+x-1-mid)*t[mid]<=b)
            return true;
    }
    return false;
}
int  besthub(int R, int L, int X[], ll B){
    n=R, l=L, b=B;
    for(ll i=1; i<=n; i++){
        pref[i]=X[i-1];
        t[i]=pref[i];
        pref[i]+=pref[i-1];
    }
    ll pocz=1, kon=n, sr, wynik=1;
    while(pocz<=kon){
        sr=(pocz+kon)/2;
        if(spr(sr))
            pocz=sr+1, wynik=sr;
        else
            kon=sr-1;
    }
    return wynik;
}
/*ll main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
}*/

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