Submission #31879

#	Time	Username	Problem	Language	Result	Execution time	Memory
31879		Kanvie	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	5.56 / 100	409 ms	41468 KiB

brunhilda

#include<bits/stdc++.h>
using namespace std;
const int M=10000000;
int x,m,q,d[M+1],a[100001],mx,p,pp,cnt;
int main()
{
    cin>>m>>q;
    for(int i=1;i<=m;++i)cin>>a[i];
    for(int i=1;i<=m;++i)
        for(int j=0;j<=M;j+=a[i])d[j]=max(d[j],a[i]);
    for(int i=0;i<=M;++i)
    {
        while(i<=p)
        {
            if(d[i]!=0)pp=max(pp,i+d[i]-1);
            d[i]=cnt;
            if(i==p)break;
            i++;
        }
        if(i==pp){mx=i;break;}
        p=pp;
        ++cnt;
    }
    while(q--)
    {
        cin>>x;
        if(mx<x)cout<<"oo\n";
        else cout<<d[x]<<"\n";
    }
}

• Subtask 1: 5.555555555555555 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 60