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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#528666#9162. COVID testsmakrav#0 68ms3764kbC++203.5kb2024-08-23 19:15:342024-08-23 19:15:35

Judging History

你现在查看的是最新测评结果

  • [2024-08-23 19:15:35]
  • 评测
  • 测评结果:0
  • 用时:68ms
  • 内存:3764kb
  • [2024-08-23 19:15:34]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()

mt19937 rnd(time(NULL));

double rand_d() {
    return (double)(rnd() % RAND_MAX) / RAND_MAX;
}

void rsh(vector<int> &x) {
    for (int i = 1; i < x.size(); i++) {
        swap(x[i], x[rnd() % (i + 1)]);
    }
}   

vector<int> fs = {4530, 15330, 28470, 57450, 73890, 109860, 147090, 191730, 219420};

void solve(int tc) {
    int n, t; 
    double p; cin >> n >> p >> t;
    int qtot = 0;
    int sm =0;
    for (int i = 0; i < t; i++) {
        for (int j = 0; j < n; j++) sm += (rand_d() <= p);
    }
    int exp = (sm + n - 1) / n + 5;
    for (int lol = 0; lol < t; lol++) {
        vector<int> res(n);
        for (int i = 0; i < n; i++) {
            res[i] = rand_d() <= p;
        }
        int curtot = 0;
        auto ask = [&](string s) -> bool {
            qtot++;
            curtot++;
            #ifdef LOCAL 
                int ans = 0;
                for (int i = 0; i < n; i++) {
                    if (s[i] == '1') ans |= res[i];
                }
                return ans;
            #else
                cout << "Q " << s << endl;
                char c; cin >> c;
                return (c == 'P');
            #endif
        };
        auto check = [&](string ans) {
            #ifdef LOCAL 
                for (int i = 0; i < n; i++) {
                    if (ans[i] - '0' != res[i]) return false;
                }
                return true;
            #else
                cout << "A " << ans << endl;
                char c; cin >> c;
                return (c == 'C');
            #endif
        };
        vector<int> poss(n);
        iota(all(poss), 0);
        while (sz(poss) > exp) {
            double newp = (double) exp / (double) sz(poss);
            int siz = 1;
            double P=1-newp;
            while(siz<=sz(poss)-exp&&P>=0.05){
                siz++;
                P*=(1-newp);
            }
            //cout<<siz<<' ';
            int ci = 0;
            while (true) {
                ci++;
                rsh(poss);
                string S;
                for (int j = 0; j < n; j++) S += '0';
                for (int i = 0; i < siz; i++) S[poss[i]] = '1';
                if (!ask(S)) {
                    reverse(all(poss));
                    for (int j = 0; j < siz; j++) poss.pop_back();
                    break;
                }
            }
            //cout<<ci<<'\n';
        }
        //cout<<curtot<<' '<<sz(poss)<<'\n';
        string answ;
        for (int i = 0; i < n; i++) answ += '0';
        for (int j = 0; j < sz(poss); j++) {
            string S;
            for (int i = 0; i < n; i++) S += '0';
            S[poss[j]] = '1';
            if (ask(S)) answ[poss[j]] = '1';
        }
        assert(check(answ));
    }
    #ifdef LOCAL 
        double pts = 0;
        if (qtot <= fs[tc]) {
            pts = 90;
        } else if (qtot <= 10 * fs[tc]) {
            pts = 90 * (double)fs[tc] / (double)(fs[tc] + 4 * (qtot - fs[tc])); 
        }
        cout << "gained " << pts << '\n';
    #endif
}

signed main() {
    int tt = 1;
    #ifdef LOCAL 
        freopen("in.txt", "r", stdin);
        freopen("out.txt", "w", stdout);
        cin >> tt;
    #else 
        ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    #endif

    for (int i = 0; i < tt; i++) {
        solve(i);
    }

    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Interactor Judgement Failed

Test #1:

score: 0
Interactor Judgement Failed

input:

1000 0.789673 1
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
...

output:

Q 0001101011110011011001101000100110011111001011111001110000100000110100111011110000000000001110010011000101101001101101010111110110010111001111000011010100110110000110100101001000000001010001111100110001010011111010101111100111001100010111010111110001000110000111110011111010010010110101111010000011...

result:


Subtask #2:

score: 0
Interactor Memory Limit Exceeded

Test #18:

score: 21.67
Acceptable Answer
time: 68ms
memory: 3764kb

input:

1000 0.001 300
N
N
N
N
N
N
N
N
N
N
N
N
N
N
C
N
P
N
N
P
N
P
N
N
N
N
N
N
N
N
N
P
C
P
P
P
P
P
P
P
P
P
P
N
P
P
P
P
P
P
P
N
P
N
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
N
N
P
P
N
N
P
P
P
P
P
P
P
P
N
P
P
N
N
P
N
C
N
N
N
N
N
N
N
N
N
N
N
N
N
N
C
N
N
N
N
N
N
N
N
N
N
N
N
N
N
C
P
P
N
P
P
P
P
N
N
P
N
N
P
P
P
N
P
N
P...

output:

Q 0010110110001010111101001111110010100001110100001010101110011111000011000100001100110111110010001110001101100000010011110100011100100101101100111111001101110011010101100001110001100101110110101010011011110111000001001001000000101111110010010101001011000001000111000011010110000001101010000001011100...

result:

points 0.24077777780 0.2407777778 Output is correct (P=0.001, F=15.1, Q=27.0) -> 21.67 points

Test #19:

score: 21.67
Acceptable Answer
time: 68ms
memory: 3764kb

input:

1000 0.005256 300
P
P
P
P
P
P
P
P
P
N
P
P
P
P
P
P
N
P
N
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
N
N
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
N
P
P
P
P
N
P
P
P
P
P
N
P
P
P
P
P
P
N
P
P
P
P
P
P
P
N
N
P
N
P
P
P
P
C
P
N
P
P
P
P
P
N
P
P
P
P
P
N
P
P
N
P
P
N
...

output:

Q 1100000001011000011100011011110001101000111011110010010101000111001010000000000000100100111011000110101000010110010011011110100100001100111001100100100000000111100010010110101100000100111110000010000101111100101010111000000010010011001100101001110011111101000110100100000101011000000011100011000101...

result:

points 0.24077777780 0.2407777778 Output is correct (P=0.001, F=15.1, Q=27.0) -> 21.67 points

Test #20:

score: 0
Interactor Memory Limit Exceeded

input:

1000 0.011546 300
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
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P
P
P
P
P
P
P
P
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P
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P
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P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
...

output:

Q 1011111110011000000011101100000000000000111101011000101000100000010001001011001011011001111000000110001010000001000010110000111101000110110000110100101100000000111001000110100000011010000100100110000011110100100110000000100101001110000101110000001010010100001010010111011100011010001000001000011010...

result: