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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#528654#9162. COVID testsmakrav#0 3191ms4000kbC++203.2kb2024-08-23 18:59:312024-08-23 18:59:31

Judging History

你现在查看的是最新测评结果

  • [2024-08-23 18:59:31]
  • 评测
  • 测评结果:0
  • 用时:3191ms
  • 内存:4000kb
  • [2024-08-23 18:59:31]
  • 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;
        }
        auto ask = [&](string s) -> bool {
            qtot++;
            #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) > 2 * exp) {
            double newp = (double) exp / (double) sz(poss);
            int siz = (sz(poss) - exp + 1) / 2;
            if (siz > sz(poss) - exp) siz = sz(poss) - exp;
            while (true) {
                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;
                }
            }
        }
        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';
        }
        if (!check(answ)) return;
    }
    //cout << qtot << '\n';
    #ifdef LOCAL 
        double pts = 0;
        if (qtot <= fs[tc]) {
            pts = 90;
        } else if (qtot <= 10 * fs[tc]) {
            pts = (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;
}

详细

Subtask #1:

score: 0
Interactor Memory Limit Exceeded

Test #1:

score: 0
Interactor Memory Limit Exceeded

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 1101100111110010010010111000100101101110100011100100110011001000011111101001000000000010001011101000101101111010100000111111111011110100101011100010010011010111001110001000110011000001100111110100101000101110101010110111011110100000100111000101011011111000000000111010101011011001000101101001001001...

result:


Subtask #2:

score: 0
Wrong Answer

Test #18:

score: 21.14
Acceptable Answer
time: 38ms
memory: 3832kb

input:

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

output:

Q 0101011010000100000111111101000001101010010101001111000101011111101011011111110100010001011010010101111000100101001111001011010101001110011100100001110000011011010011010000011011000011000101011001000010000001111000010010101111000011001111111110010111101101101000111110111001000001101011101101100111...

result:

points 0.23488888890 0.2348888889 Output is correct (P=0.001, F=15.1, Q=27.4) -> 21.14 points

Test #19:

score: 0
Wrong Answer
time: 3191ms
memory: 4000kb

input:

1000 0.005256 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
N
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
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
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
N
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
N
P
P
P
P
P
N
N
N
P
P
...

output:

Q 0101011010000100000111111101000001101010010101001111000101011111101011011111110100010001011010010101111000100101001111001011010101001110011100100001110000011011010011010000011011000011000101011001000010000001111000010010101111000011001111111110010111101101101000111110111001000001101011101101100111...

result:

points 0.0 0.0 translate:wrong