Submission #82984

#	Time	Username	Problem	Language	Result	Execution time	Memory
82984		Bodo171	Worst Reporter 3 (JOI18_worst_reporter3)	C++14	100 / 100	1968 ms	82172 KiB

worst_reporter3

#include <iostream>
#include <fstream>
using namespace std;
const int nmax=500005;
long long d[nmax],fv[nmax],val[nmax];
int n,q,p,i,l,r,t;
string s;
int num,ch;
int getnum()
{
    num=0;
    while(s[ch]>='0'&&s[ch]<='9')
        num=num*10+s[ch]-'0',ch++;
    ch++;
    return num;
}
int calc(int x,int t)
{
    int ret=0;
    int vv;
    if(t<x)
        return 0;
    for(int p=18;p>=0;p--)
    {
        vv=ret+(1<<p);
        if(vv<=n&&(t/fv[vv])*(val[vv])-vv>=x)
            ret+=(1<<p);
    }
    return ret+1;
}
int main()
{
    //freopen("data.in","r",stdin);
    ios_base::sync_with_stdio(false);
    cin>>n>>q;getline(cin,s);
    for(i=1;i<=n;i++)
    {
        getline(cin,s);
        ch=0;d[i]=getnum();
        if(i==1) fv[i]=d[i],val[i]=d[i];
        else
        {
            if(val[i-1]<d[i])
            {
                fv[i]=(1LL*fv[i-1]*((d[i]+val[i-1]-1)/val[i-1]));
                val[i]=(d[i]+val[i-1]-(d[i]%val[i-1]));
                if(!(d[i]%val[i-1]))
                    val[i]=d[i];
            }
            else
            {
                fv[i]=fv[i-1];
                val[i]=val[i-1];
            }
            fv[i]=min(fv[i],1LL*(1000*1000*1000+1));
        }
    }
    for(i=1;i<=q;i++)
    {
        getline(cin,s);ch=0;
        t=getnum();l=getnum();r=getnum();
        cout<<calc(l,t)-calc(r+1,t)<<'\n';
    }
    return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 12 / 12
• Subtask 3: 81 / 81