Submission #94776

#	Time	Username	Problem	Language	Result	Execution time	Memory
94776		MvC	Rice Hub (IOI11_ricehub)	C++11	0 / 100	4 ms	764 KiB

ricehub

#include "ricehub.h"
#pragma GCC optimize("O3")
#include<bits/stdc++.h>
#define rc(x) return cout<<x<<endl,0
#define pb push_back
#define in insert
#define er erase
#define fd find
#define fr first
#define sc second
typedef long long ll;
typedef long double ld;
const ll INF=0x3f3f3f3f3f3f3f3f;
const ll llinf=(1LL<<62);
const int inf=(1<<30);
const int nmax=1e5+50;
const int mod=1e9+7;
using namespace std;
ll n,m,l,r,mid,i;
ll b,x[nmax],s[nmax];
int ok(int k,int md)
{
    for(int i=k;i<=n;i++)
    {
        ll tot=-1LL*(1LL*s[i-md+1]-1LL*s[i-k])+1LL*(1LL*i-1LL*md+1LL*1-1LL*i+1LL*k)*1LL*x[md]+1LL*s[i]-1LL*s[i-md+1]-1LL*(1LL*i-1LL*i+1LL*md-1LL*1)*1LL*x[md];
        if(tot<=b)return 1;
    }
    return 0;
}
int besthub(int N,int m,int y[],ll B)
{
	//freopen("sol.in","r",stdin);
	//freopen("sol.out","w",stdout);
	//ios_base::sync_with_stdio(false);cin.tie(0);cerr.tie(0);cout.tie(0);
	b=B;
	n=N;
	for(i=1;i<=n;i++)
	{
	    x[i]=y[i-1];
	    s[i]=s[i-1]+x[i];
	}
	l=1,r=n;
	while(l<=r)
	{
	    mid=(l+r)/2;
	    if(ok(mid,(mid/2)+1))l=mid+1;
	    else r=mid-1;
	}
	if(ok(l-1,((l-1)/2)+1))return max(l-1,1LL);
	else return 1;
}

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