Submission #72646

#	Time	Username	Problem	Language	Result	Execution time	Memory
72646		istlemin	Fibonacci representations (CEOI18_fib)	C++14	5 / 100	4097 ms	704 KiB

fib

#include<bits/stdc++.h>

using namespace std;

#define rep(i,a,b) for(int i = a; i<int(b);++i)
#define all(v) v.begin(),v.end()
#define sz(v) v.size()
#define trav(a,c) for(auto a: c)

typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll,ll> pii;

const ll mod = 1e9+7;

ll n;
vi a;

vi F;

ll solve(ll k){
    /*map<ll,ll> m;
    rep(i,0,k){
        m[a[i]]++;
    }

    for(auto it = m.begin(); it!=m.end();it++){
        if(it->second>1&&it!=m.begin()&&prev(it)->second==1){

        }
        if(it->second>1) return 0;
    }*/

    ll p = 0;
    rep(i,0,k) p += F[a[i]];

    ll ans = 0;

    rep(mask,0,(1<<20)){
        ll sum = 0;
        rep(i,0,20){
            if((1<<i)&mask){
				sum+=F[i+1];
            }
        }
        ans+=(sum==p);
    }

    return ans;

}

int main(){
	cin.sync_with_stdio(false);
	ll n; cin>>n;
    a.resize(n);
    rep(i,0,n){
		cin>>a[i];
    }
    F.resize(25);
	F[1] = 1;
	F[2] = 2;
	rep(i,3,25) F[i] = F[i-2]+F[i-1];
	rep(i,0,n) cout<<solve(i+1)<<endl;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 20
• Subtask 3: 0 / 15
• Subtask 4: 0 / 10
• Subtask 5: 0 / 15
• Subtask 6: 0 / 35