Submission #940946

#	Time	Username	Problem	Language	Result	Execution time	Memory
940946		hotboy2703	Toxic Gene (NOI23_toxic)	C++17	29.95 / 100	8 ms	600 KiB

toxic

#include "toxic.h"
#include<bits/stdc++.h>
using namespace std;
using ll = int;
using ull = unsigned long long;
using ld = long double;
#define pll pair <ll,ll>
#define fi first
#define se second
#define sz(a) (ll((a).size()))
#define BIT(mask,i) (((mask) >> (i))&1)
#define MASK(i) (1LL << (i))
#define MP make_pair
ll ans[310];
//0 thuong 1 doc 2 manh
ll query(ll l,ll r){
    vector <ll> all;
    for (ll i = l;i <= r;i ++)all.push_back(i);
    ll x = query_sample(all);
    return x;
}
void solve(ll l,ll r){
    if (l==r){ans[l]=1;return;}
    ll mid = (l + r) >> 1;
    if (query(l,mid)!=mid-l+1){
        solve(l,mid);
        if (query(mid+1,r)!=r-mid){
            solve(mid+1,r);
        }
    }
    else solve(mid+1,r);
}
void determine_type(int n){
    for (ll i = 1;i <= n;i ++)ans[i] = -1;
	for (ll i = 1;i <= n;i += 8){
        if (query(i,min(i+7,n))!=min(i+7,n) - i + 1)solve(i,min(i+7,n));
	}
	ll poison = -1;
	vector <ll> rem;
    for (ll i = 1;i <= n;i ++){
        if (ans[i] == 1){
            poison = i;
        }
        else{
            rem.push_back(i);
        }
    }
//    for (auto x:rem)cout<<x<<' ';
//    cout<<'\n';
    while (sz(rem)){
        vector <ll> cur;
        while (sz(rem) && sz(cur) < 8){cur.push_back(rem.back());rem.pop_back();}
        vector <ll> all;
        for (ll j = 0;j < sz(cur);j ++){
            for (ll k = 0;k < MASK(j);k ++){
                all.push_back(cur[j]);
            }
        }
        all.push_back(poison);
        ll x = query_sample(all);
        for (ll j = 0;j < sz(cur);j ++){
            if (BIT(x,j)){
                ans[cur[j]] = 2;
            }
            else ans[cur[j]] = 0;
        }
    }
    for (ll i = 1;i <= n;i ++){
        if (ans[i]==0)answer_type(i,'R');
        if (ans[i]==2)answer_type(i,'S');
        if (ans[i]==1)answer_type(i,'T');
    }
}

• Subtask 1: 29.952941179999996 / 100