제출 #1349100

#제출 시각아이디문제언어결과실행 시간메모리
1349100feyzaRobots (IOI13_robots)C++20
0 / 100
3094 ms12840 KiB
#include <bits/stdc++.h>
#include "robots.h"

using namespace std;

const int maxn=1e6+5;
const int maxa=5e4+5;
int w[maxn],s[maxn];
int x[maxa],y[maxa];

int sz[maxn],weight[maxn];
bool used[maxn];

bool cmpsz(int a,int b)
{
    if(s[a]!=s[b])
        return s[a]<s[b];
    return w[a]<w[b];
}

bool cmpw(int a,int b)
{
    if(w[a]!=w[b])
        return w[a]<w[b];
    return s[a]<s[b];
}

int bin_search_w(int src,int & T)
{
    int l=0,r=T-1,mid;
    while(l<=r)
    {
        mid=(l+r)/2;
        if(w[mid]<src)
            l=mid+1;
        else
            r=mid-1;
    }

    return l-1;
}

int bin_search_s(int src,int & T)
{
    int l=0,r=T-1,mid;
    while(l<=r)
    {
        mid=(l+r)/2;
        if(s[mid]<src)
            l=mid+1;
        else
            r=mid-1;
    }

    return l-1;
}

bool check(int curr,int & A,int & B,int & T)
{
    for(int i=0;i<T;i++)
        used[i]=false;

    int cnt;
    for(int i=0;i<A;i++)
    {
        int idx=bin_search_w(x[i],T);
        cnt=0;
        while(idx>=0 && cnt<curr)
        {
            if(!used[idx])
            {
                used[idx]=true;
                cnt++;
            }
            idx--;
        }
    }

    for(int i=0;i<B;i++)
    {
        int idx=bin_search_s(y[i],T);
        cnt=0;
        while(idx>=0 && cnt<curr)
        {
            if(!used[idx])
            {
                used[idx]=true;
                cnt++;
            }
            idx--;
        }
    }

    for(int i=0;i<T;i++)
    {
        if(!used[i])
            return false;
    }

    return true;
}

int putaway(int A, int B, int T,int X[], int Y[], int W[], int S[])
{
    for(int i=0;i<A;i++)
        x[i]=X[i];
    for(int i=0;i<B;i++)
        y[i]=Y[i];

    for(int i=0;i<T;i++)
    {
        sz[i]=i;
        weight[i]=i;
        w[i]=W[i]; s[i]=S[i];
    }

    sort(sz,sz+T,cmpsz);
    sort(weight,weight+T,cmpw);

    int l=1,r=T,mid;
    while(l<=r)
    {
        mid=(l+r)/2;
        if(check(mid,A,B,T))
            r=mid-1;
        else
            l=mid+1;
    }

    if(l>T)
        return -1;

    return l;
}
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