Submission #950945

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
950945	2024-03-21T02:57:46 Z	browntoad	Toxic Gene (NOI23_toxic)	C++17	97.3 / 100	22 ms	508 KB

toxic

#include <bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define REP(i, n) FOR(i, 0, n)
#define REP1(i, n) FOR(i, 1, n+1)
#define pb push_back
#define ALL(x) (x).begin(), (x).end()
#define SZ(x) (int)((x).size())
#include "toxic.h"
using namespace std;
/*
int query_sample(vector<int> &a){
    cout<<"? ";
    REP(i, SZ(a)) cout<<a[i]<<' ';
    cout<<endl<<flush;
    int in; cin>>in;
    return in;
}
void answer_type(int a, char c){
    cout<<a<<' '<<c<<endl<<flush;
}
*/
 
 
 
void determine_type(int n){
    mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
 
    int ret;
    vector<int> ids;
    REP1(i, n) ids.pb(i);
    shuffle(ALL(ids), rng);
 
    vector<int> qq;
    vector<int> dai; // match with T at the very end
 
    int tid = -1, cnt = 0;
    while(SZ(ids)){
        if (cnt == 30){
            while(SZ(ids)){
                dai.pb(ids.back());
                ids.pop_back();
            }
            break;
        }
        shuffle(ALL(ids), rng);
 
        vector<int> tmp;
        while(SZ(tmp) < 8 && SZ(ids) > 0){
            tmp.pb(ids.back());
            ids.pop_back();
        }
 
        REP(i, SZ(tmp)){
            REP(j, (1<<i)){
                qq.pb(tmp[i]);
            }
        }
        ret = query_sample(qq);
        qq.clear();
 
        if (ret == (1<<SZ(tmp))-1){
            REP(j, SZ(tmp)) dai.pb(tmp[j]);
            continue;
        }
 
        vector<int> tmp2;
        REP(i, SZ(tmp)){
            if ((1<<i)&ret){
                answer_type(tmp[i], 'S');
            }
            else tmp2.pb(tmp[i]);
        }
 
        int mid;
        while(SZ(tmp2) > 1){
            mid = SZ(tmp2)/2;
 
            vector<int> toad;
            REP(i, mid) toad.pb(tmp2[i]);
            while(SZ(toad) < 8 && SZ(dai) > 0){
                toad.pb(dai.back());
                dai.pop_back();
            }
            
 
            REP(i, SZ(toad)){
                REP(j, (1<<i)) qq.pb(toad[i]);
            }
 
            ret = query_sample(qq);
            qq.clear();
 
            /*FOR(i, mid, SZ(toad)){
                if (ret & (1<<i)){
                    answer_type(toad[i], 'S');
                    ret -= (1<<i);
                }
                else answer_type(toad[i], 'R');
            }
            */
 
            if (ret != (1<<SZ(toad))-1){ // T exists in the prefix
                FOR(i, mid, SZ(tmp2)){
                    ids.pb(tmp2[i]);
                }
                while(SZ(tmp2) > mid) tmp2.pop_back();
                FOR(i, mid, SZ(toad)){
                    if (ret & (1<<i)){
                        answer_type(toad[i], 'S');
                        ret -= (1<<i);
                    }
                    else answer_type(toad[i], 'R');
              	}
            }
            else {
                REP(i, mid){
                    answer_type(tmp2[i], 'R');
                }
                tmp2.erase(tmp2.begin(), tmp2.begin()+mid);
              	FOR(i, mid, SZ(toad)){
                    dai.pb(toad[i]);
            	}
            }
        }
 
        // use tmp2 from now on
        assert(SZ(tmp2) == 1);
        tid = tmp2[0];
        answer_type(tmp2[0], 'T');
        cnt++;
 
 
        /*REP(i, mid){
            answer_type(tmp2[i], 'R');
        }
        answer_type(tmp2[mid], 'T');
        cnt++;
        tid = tmp2[mid];
        FOR(i, mid+1, SZ(tmp2)){
            ids.pb(tmp2[i]);
        }
        */
 
    }
 
    for (int i = 0; i < SZ(dai); i += 8){
        int ci = i;
        vector<int> tmp;
        while(SZ(tmp) < 8 && ci < SZ(dai)){
            REP(j, (1<<(ci-i))){
                qq.pb(dai[ci]);
            }
            tmp.pb(dai[ci]);
            ci++;
        }
        qq.pb(tid);
 
        ret = query_sample(qq);
        qq.clear();
 
        REP(j, SZ(tmp)){
            if ((1<<j)&ret) answer_type(tmp[j], 'S');
            else answer_type(tmp[j], 'R');
        }
    }
 
}
/*
signed main(){
    determine_type(4);
}
*/
 
 
// ~270/x * (log2(x)+1) + 30*(log2(x)+1)
 
// ~270/x + (log2(x)+1)*30 - random chances to deduct more from top + remaining ranges need matching

Subtask #1

97.3 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	18 ms	348 KB	Output is correct
3	Correct	16 ms	348 KB	Output is correct
4	Correct	15 ms	504 KB	Output is correct
5	Partially correct	19 ms	348 KB	Partially correct
6	Correct	18 ms	348 KB	Output is correct
7	Correct	19 ms	348 KB	Output is correct
8	Correct	19 ms	348 KB	Output is correct
9	Correct	20 ms	348 KB	Output is correct
10	Correct	17 ms	348 KB	Output is correct
11	Correct	15 ms	508 KB	Output is correct
12	Correct	16 ms	348 KB	Output is correct
13	Correct	16 ms	348 KB	Output is correct
14	Correct	14 ms	508 KB	Output is correct
15	Partially correct	18 ms	348 KB	Partially correct
16	Correct	18 ms	348 KB	Output is correct
17	Correct	22 ms	500 KB	Output is correct
18	Correct	19 ms	348 KB	Output is correct
19	Correct	18 ms	348 KB	Output is correct
20	Correct	17 ms	448 KB	Output is correct
21	Correct	15 ms	348 KB	Output is correct
22	Correct	14 ms	348 KB	Output is correct
23	Correct	12 ms	504 KB	Output is correct
24	Correct	16 ms	348 KB	Output is correct
25	Correct	16 ms	348 KB	Output is correct
26	Correct	16 ms	348 KB	Output is correct
27	Correct	16 ms	500 KB	Output is correct
28	Correct	15 ms	348 KB	Output is correct
29	Correct	19 ms	348 KB	Output is correct
30	Correct	18 ms	348 KB	Output is correct
31	Correct	18 ms	504 KB	Output is correct
32	Correct	18 ms	348 KB	Output is correct
33	Correct	15 ms	348 KB	Output is correct
34	Partially correct	18 ms	344 KB	Partially correct
35	Correct	19 ms	348 KB	Output is correct
36	Correct	3 ms	348 KB	Output is correct