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Submission #950936

# Submission time Handle Problem Language Result Execution time Memory
950936 2024-03-21T02:35:21 Z browntoad Toxic Gene (NOI23_toxic) C++17
67.6 / 100
 19 ms 756 KB 
#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 == 0){ // T exists in the prefix
                FOR(i, mid, SZ(tmp2)){
                    ids.pb(tmp2[i]);
                }
                while(SZ(tmp2) > mid) tmp2.pop_back();
            }
            else {
                REP(i, mid){
                    answer_type(tmp2[i], 'R');
                }
                tmp2.erase(tmp2.begin(), tmp2.begin()+mid);
            }
        }

        // 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
67.6 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Partially correct 15 ms 348 KB Partially correct
3 Partially correct 15 ms 344 KB Partially correct
4 Partially correct 14 ms 348 KB Partially correct
5 Partially correct 17 ms 504 KB Partially correct
6 Partially correct 17 ms 348 KB Partially correct
7 Partially correct 17 ms 344 KB Partially correct
8 Partially correct 17 ms 348 KB Partially correct
9 Partially correct 16 ms 504 KB Partially correct
10 Partially correct 16 ms 348 KB Partially correct
11 Partially correct 17 ms 348 KB Partially correct
12 Partially correct 19 ms 344 KB Partially correct
13 Partially correct 15 ms 756 KB Partially correct
14 Partially correct 14 ms 348 KB Partially correct
15 Partially correct 17 ms 348 KB Partially correct
16 Partially correct 17 ms 344 KB Partially correct
17 Partially correct 17 ms 348 KB Partially correct
18 Partially correct 16 ms 348 KB Partially correct
19 Partially correct 16 ms 344 KB Partially correct
20 Partially correct 16 ms 508 KB Partially correct
21 Correct 14 ms 508 KB Output is correct
22 Correct 13 ms 508 KB Output is correct
23 Correct 13 ms 348 KB Output is correct
24 Partially correct 15 ms 348 KB Partially correct
25 Partially correct 16 ms 348 KB Partially correct
26 Partially correct 15 ms 344 KB Partially correct
27 Partially correct 15 ms 348 KB Partially correct
28 Correct 13 ms 344 KB Output is correct
29 Partially correct 17 ms 344 KB Partially correct
30 Partially correct 17 ms 508 KB Partially correct
31 Partially correct 16 ms 344 KB Partially correct
32 Partially correct 16 ms 348 KB Partially correct
33 Correct 14 ms 500 KB Output is correct
34 Partially correct 17 ms 344 KB Partially correct
35 Partially correct 17 ms 504 KB Partially correct
36 Partially correct 2 ms 456 KB Partially correct