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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#212920 | #6824. Demonstrational Sequences | nameless_story# | TL | 1165ms | 238100kb | C++23 | 2.0kb | 2023-10-13 22:55:59 | 2023-10-13 22:55:59 |
Judging History
answer
#include"bits/stdc++.h"
using namespace std;
typedef unsigned long long ll;
template<class T1,class T2> bool cmax(T1 &x,const T2 &y) { if (x<y) { x=y; return 1; }return 0; }
#define all(x) (x).begin(),(x).end()
const ll N=1e7+2,M=1e4+5,NN=7e6+5,Q=1<<20|5;
bool ed[N];
ll c[NN+1];
mt19937 rnd(235);
vector<int> buc[Q];
int main()
{
ios::sync_with_stdio(0); cin.tie(0);
cout<<fixed<<setprecision(15);
ll p,q,i,j;
int T;
cin>>p>>q>>T;
p/=q;
map<pair<ll,ll>,int> ans;
for (i=0; i<N; i++) if (gcd(i,p)==1) ed[i]=1;
p*=q;
// assert(ed[2]);
while (T--)
{
auto cal=[&]()
{
ll a,b,d,dmq;
int tot=1e6,i,j;
for (i=0; i<q; i++) buc[i].clear();
cin>>a>>b;
// a=2022; b=924;
a%=p; b%=p;
if (ans.count({a,b})) return ans[{a,b}];
c[0]=a;
for (i=1; i<=NN; i++) c[i]=(c[i-1]*c[i-1]+b)%p;
// shuffle(c+5000,c+NN+1,rnd);
// cerr<<c[0]<<' '<<c[3]<<' '<<q<<endl;
vector<ll> occ;
ll R=max<int>(q*5,1000);
for (i=0; i<=R; i++) occ.push_back(c[i]%q);
sort(all(occ)); occ.resize(unique(all(occ))-occ.begin());
for (ll x:occ) buc[x].clear();
for (i=0; i<=R; i++) buc[c[i]%q].push_back(c[i]/q);
// cerr<<occ.size()<<endl;
for (ll x:occ)
{
auto &v=buc[x];
// if (x==1) cerr<<v[0]<<' '<<v[1]<<endl;
sort(all(v));
// if (v.size()>1000)
int m=unique(all(v))-v.begin();
if (m!=v.size()&&ed[0]) return ans[{a,b}]=1;
v.resize(m);
// if (x==1) assert(count(all(v),0)&&count(all(v),2));
// cerr<<x<<endl;
// int m=v.size();
for (i=0; i<m; i++)
{
// cerr<<i<<endl;
for (j=i-1; j>=0; j--)
{
// if (x==1&&i==1&&j==0) cerr<<i<<' '<<j<<endl;
if (v[i]-v[j]<N&&ed[v[i]-v[j]]) return ans[{a,b}]=1;
// if (v[j]-v[i]<N&&ed[v[j]-v[i]]) return ans[{a,b}]=1;
// if (v[i]+pq-v[j]<N&&ed[v[i]+pq-v[j]]) return ans[{a,b}]=1;
}
// tot-=min<int>(tot,i-1);
}
}
return ans[{a,b}]=0;
};
cout<<cal();
}
cout<<endl;
}
詳細信息
Test #1:
score: 100
Accepted
time: 442ms
memory: 92552kb
input:
15 5 5 1 1 1 2 2 4 4 8 8 16
output:
11010
result:
ok "11010"
Test #2:
score: 0
Accepted
time: 1165ms
memory: 238100kb
input:
998244352 1048576 3 2022 924 12345678 1234567 23333333 6666666
output:
001
result:
ok "001"
Test #3:
score: 0
Accepted
time: 767ms
memory: 127532kb
input:
100237 100237 10 1244422970085542683 6256585832417115176 11178595626727644735 679276059713497324 5646838801370008540 6709514788466664568 9971158657914728691 8724448042786063799 9867649407902336110 2614925263502318093 1990105069810770727 8671216841234378816 7965667786524489724 6722337513023700570 246...
output:
1111111111
result:
ok "1111111111"
Test #4:
score: -100
Time Limit Exceeded
input:
1000000007 1 200 1244424352052424851 13102057264748565738 10964128241743967010 11238647915096906960 9602909082986968021 14247804011443894396 13231275623402659328 11122445945926639224 1819715673773979255 15011227386780949150 10389668459305004672 13595253579372877142 136927098471150438 141908708541553...