QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#633114 | #9225. Fibonacci Fusion | Mu_Silk | TL | 1060ms | 230544kb | C++20 | 1.5kb | 2024-10-12 14:34:56 | 2024-10-12 14:34:57 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N=200010;
const int N1=10000010;
const ll M1=1e9+7;
const ll M2=1e9+9;
pair<ll,ll> fib[N1];
string s[200010];
void init(){
fib[0]={0,0};
fib[1]={1,1};
for(int i=2;i<N1;i++){
fib[i].first=(fib[i-1].first+fib[i-2].first)%M1;
fib[i].second=(fib[i-1].second+fib[i-2].second)%M2;
}
}
int lenfib(int n){
return n*log10((1+sqrt(5))/2)-log10(sqrt(5));
}
void solve(){
init();
int n;cin>>n;
for(int i=0;i<n;i++)cin>>s[i];
sort(s,s+n,[&](const string& a,const string& b){
if(a.size()!=b.size())return a.size()<b.size();
return a<b;
});
map<pair<ll,ll>,int> mp;
ll ans=0;
for(int i=0;i<n;i++){
int len=s[i].size();
int l=0,r=N1-1;
while(r>=l){
int m=(l+r)>>1;
if(lenfib(m)>=len)r=m-1;
else l=m+1;
}
pair<ll,ll> pi={0,0};
for(auto c:s[i]){
pi.first=(pi.first*10+c-'0')%M1;
pi.second=(pi.second*10+c-'0')%M2;
}
for(int i=max(0,l-100);i<min(l+100,N1);i++){
pair<ll,ll> tmp=pi;
tmp.first=(fib[i].first-tmp.first+M1)%M1;
tmp.second=(fib[i].second-tmp.second+M2)%M2;
ans+=mp[tmp];
}
mp[pi]+=1;
}
cout<<ans<<"\n";
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
int n=1;
// cin>>n;
while(n--)solve();
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 37ms
memory: 166132kb
input:
6 50 8 8 5 72 354224848179261915070
output:
4
result:
ok 1 number(s): "4"
Test #2:
score: 0
Accepted
time: 59ms
memory: 170996kb
input:
28 200878223506436882933619847964496455022155117513398820563747455993172799881403389571477889821109288771413214004090719097929400406252135763028179112130390003528046316900603668569910008417315162907579003880220844686222148696041857432602133894827753998572080650383305777912447151917272483538029469449...
output:
27
result:
ok 1 number(s): "27"
Test #3:
score: 0
Accepted
time: 1060ms
memory: 230544kb
input:
5187 2640352926124261912741724778991366987330659389621881876017670644497364093930668042530271338851702874394631009332660937266680740235862107353443518003194307853104942996827176097428402408674756368623972812842571069642405111849826172879369776309763468485788964245903781380419155348915131587410703749...
output:
6073
result:
ok 1 number(s): "6073"
Test #4:
score: 0
Accepted
time: 277ms
memory: 166128kb
input:
200000 2 2 2 2 1 2 1 1 2 2 1 1 1 2 2 1 1 2 1 1 2 2 1 2 2 2 1 1 1 1 2 2 1 2 1 2 1 1 2 2 1 1 1 2 1 1 2 1 2 2 2 2 1 2 2 1 1 1 2 1 1 1 1 1 2 1 2 2 1 1 1 2 2 2 1 1 2 1 1 2 1 2 1 1 1 2 2 2 1 1 1 1 2 1 2 1 1 2 2 1 1 2 1 1 2 1 2 2 1 2 1 2 2 1 1 2 1 1 1 2 2 2 1 2 2 1 1 2 2 2 2 1 2 1 1 2 1 2 2 1 1 1 1 2 2 2 2...
output:
15003749259
result:
ok 1 number(s): "15003749259"
Test #5:
score: -100
Time Limit Exceeded
input:
200000 944176313232170622314 2590599414036674999101 753315073608896000424 9299685298577430049245 9361800333778142620806 8988699166328904060999 9606920674025578304023 4203331868598952026136 5183047027116137697788 3968714342776915029801 8130984095583566992354 3206443643596048048798 6248561214283254355...