Submission #1121354

#	Time	Username	Problem	Language	Result	Execution time	Memory
1121354		Tymond	Intercastellar (JOI22_ho_t1)	C++17	100 / 100	76 ms	10824 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define fi first
#define se second
#define vi vector<int>
#define vll vector<long long>
#define pii pair<int, int>
#define pll pair<long long, long long>
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
mt19937_64 rng64(chrono::high_resolution_clock::now().time_since_epoch().count());
inline int rand(int l,int r){return uniform_int_distribution<int>(l, r)(rng);}
inline ll rand(ll l,ll r){return uniform_int_distribution<ll>(l, r)(rng64);}
#ifdef DEBUG
auto&operator<<(auto&o,pair<auto,auto>p){return o<<"("<<p.first<<", "<<p.second<<")";}
auto operator<<(auto&o,auto x)->decltype(x.end(),o){o<<"{";int i=0;for(auto e:x)o<<","+!i++<<e;return o<<"}";}
#define debug(X...)cerr<<"["#X"]: ",[](auto...$){((cerr<<$<<"; "),...)<<endl;}(X)
#else
#define debug(...){}
#endif
 
struct custom_hash {
    static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }
 
    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};

const int MAXN = 2e5 + 7;
ll a[MAXN];
ll target[MAXN];
ll pref[MAXN];
int n;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);

    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
        ll x = a[i];
        int k = 0;
        while(x % 2 == 0){
            k++;
            x /= 2;
        }
        target[i] = x;
        pref[i] = (ll)pref[i - 1] + (1LL << k);
    }

    int q;
    cin >> q;
    while(q--){
        ll x;
        cin >> x;

        int l = 0;
        int p = n -1;
        int s;
        while(l < p){
            s = (l + p + 1) / 2;
            if(pref[s] < x){
                l = s;
            }else{
                p = s - 1;
            }
        }

        cout << target[l + 1] << '\n';
    }

    return 0;
}

• Subtask 1: 25 / 25
• Subtask 2: 35 / 35
• Subtask 3: 40 / 40