oj.uz

Submission #594075

# Submission time Handle Problem Language Result Execution time Memory
594075 2022-07-12T04:53:13 Z AA_Surely Library (JOI18_library) C++14
100 / 100
 453 ms 440 KB 
#include <bits/stdc++.h>
#include "library.h"

#define FOR(i, x, n)    for(int i = x; i < n; i++)
#define F0R(i, n)       FOR(i, 0, n)
#define ROF(i, x, n)    for(int i = n - 1; i >= x; i--)
#define R0F(i, n)       ROF(i, 0, n)

#define WTF             cout << "WTF" << endl;

#define IOS             ios_base::sync_with_stdio(0); cin.tie(0);
#define F               first
#define S               second
#define pb              push_back

#define ALL(x)          x.begin(), x.end()
#define RALL(x)         x.rbegin(), x.rend()

using namespace std;

typedef long long       LL;

typedef pair<int, int>  PII;
typedef pair<LL, LL>    PLL;

typedef vector<int>     VI;
typedef vector<LL>      VLL;
typedef vector<PII>     VPII;
typedef vector<PLL>     VPLL;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int N = 1000 + 7;

int n;
bool vis[N];
VI qr, opt, ans;

int findLeaf() {
    fill(ALL(qr), 1);

    F0R(i, n) {
        qr[i] = 0;
        
        //cout << "asking: "; F0R(i, n) cout << qr[i] << ' '; cout << endl;
        int z = Query(qr);
        qr[i] = 1;
        if (z == 1) return i;
    }

    return -1;
}

inline bool get(int x, int l, int r) {
    fill(ALL(qr), 0);
    FOR(i, l, r + 1) qr[ opt[i] ] = 1;
    int g1 = Query(qr);
    qr[x] = 1;
    int g2 = Query(qr);

    return g1 == g2;
}

int bs(int now, int l = 0, int r = opt.size()) {
    if (l == r) return opt[l];

    int mid = (l + r) >> 1;
    if (get(now, l, mid)) return bs(now, l, mid);
    return bs(now, mid + 1, r);
}

void Solve(int nn) {
    n = nn;
    if (n == 1) {
        Answer({1});
        return;
    }

    qr.resize(n);

    int now = findLeaf();
    ans.pb(now + 1);

    F0R(i, n - 1) {
        vis[now] = 1;
        qr[now] = 0;
        opt.clear();

        F0R(i, n) if (!vis[i]) opt.pb(i);
        //cout << "for i = " << i << " and now = " << now + 1 << " opt is ";
        //for(int on : opt) cout << on + 1 << ' '; cout << endl;

        int f = bs(now);
        ans.pb(f + 1);
        now = f;
    }

    //for(int on : ans) cout << on << ' '; cout << endl;
    Answer(ans);
    return;
}

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 208 KB # of queries: 2411
2 Correct 30 ms 208 KB # of queries: 2455
3 Correct 38 ms 308 KB # of queries: 2664
4 Correct 31 ms 208 KB # of queries: 2613
5 Correct 44 ms 208 KB # of queries: 2534
6 Correct 46 ms 208 KB # of queries: 2567
7 Correct 38 ms 208 KB # of queries: 2580
8 Correct 29 ms 208 KB # of queries: 2416
9 Correct 34 ms 208 KB # of queries: 2552
10 Correct 16 ms 312 KB # of queries: 1494
11 Correct 0 ms 208 KB # of queries: 0
12 Correct 0 ms 208 KB # of queries: 3
13 Correct 1 ms 208 KB # of queries: 8
14 Correct 0 ms 208 KB # of queries: 11
15 Correct 2 ms 252 KB # of queries: 85
16 Correct 3 ms 208 KB # of queries: 195

Subtask #2
81.0 / 81.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 208 KB # of queries: 2411
2 Correct 30 ms 208 KB # of queries: 2455
3 Correct 38 ms 308 KB # of queries: 2664
4 Correct 31 ms 208 KB # of queries: 2613
5 Correct 44 ms 208 KB # of queries: 2534
6 Correct 46 ms 208 KB # of queries: 2567
7 Correct 38 ms 208 KB # of queries: 2580
8 Correct 29 ms 208 KB # of queries: 2416
9 Correct 34 ms 208 KB # of queries: 2552
10 Correct 16 ms 312 KB # of queries: 1494
11 Correct 0 ms 208 KB # of queries: 0
12 Correct 0 ms 208 KB # of queries: 3
13 Correct 1 ms 208 KB # of queries: 8
14 Correct 0 ms 208 KB # of queries: 11
15 Correct 2 ms 252 KB # of queries: 85
16 Correct 3 ms 208 KB # of queries: 195
17 Correct 453 ms 296 KB # of queries: 18050
18 Correct 356 ms 308 KB # of queries: 17249
19 Correct 446 ms 300 KB # of queries: 17493
20 Correct 410 ms 312 KB # of queries: 16333
21 Correct 373 ms 440 KB # of queries: 15390
22 Correct 443 ms 296 KB # of queries: 17681
23 Correct 384 ms 304 KB # of queries: 17244
24 Correct 134 ms 312 KB # of queries: 7909
25 Correct 415 ms 312 KB # of queries: 17150
26 Correct 386 ms 308 KB # of queries: 16033
27 Correct 151 ms 208 KB # of queries: 8020
28 Correct 438 ms 312 KB # of queries: 17955
29 Correct 452 ms 300 KB # of queries: 17935
30 Correct 424 ms 312 KB # of queries: 17955