oj.uz

Submission #632860

# Submission time Handle Problem Language Result Execution time Memory
632860 2022-08-20T23:41:22 Z skittles1412 Rarest Insects (IOI22_insects) C++17
100 / 100
 63 ms 572 KB 
#include "bits/extc++.h"

using namespace std;

template <typename T>
void dbgh(const T& t) {
    cerr << t << endl;
}

template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
    cerr << t << " | ";
    dbgh(u...);
}

#ifdef DEBUG
#define dbg(...)                                           \
    cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]" \
         << ": ";                                          \
    dbgh(__VA_ARGS__)
#else
#define cerr   \
    if (false) \
    cerr
#define dbg(...)
#endif

#define endl "\n"
#define long int64_t
#define sz(x) int(size(x))

void move_inside(int i);
void move_outside(int i);
int press_button();

int min_cardinality(int n) {
    mt19937 cowng(chrono::steady_clock::now().time_since_epoch().count());
    int perm[n];
    iota(perm, perm + n, 0);
    shuffle(perm, perm + n, cowng);
    set<int> s;
    auto move_in = [&](int i) -> void {
        move_inside(perm[i]);
        assert(!s.count(i));
        s.insert(i);
    };
    auto move_out = [&](int i) -> void {
        move_outside(perm[i]);
        assert(s.count(i));
        s.erase(i);
    };
    auto press_but = [&]() -> int {
        assert(sz(s));
        return press_button();
    };
    for (int i = 0; i < n; i++) {
        move_in(i);
        if (press_but() > 1) {
            move_out(i);
        }
    }
    int distinct_cnt = sz(s);
    int l = 1, r = n / distinct_cnt;
    set<int> pool;
    for (int i = 0; i < n; i++) {
        pool.insert(i);
    }
    while (l < r) {
        assert(sz(s) == distinct_cnt * l);
        const int p = 48;
        int mid = max(l + 1, (p * l + (100 - p) * r) / 100);
        vector<int> outside, changed;
        for (auto& a : pool) {
            if (!s.count(a)) {
                outside.push_back(a);
            }
        }
        for (int i = 0; i < sz(outside) && sz(s) != distinct_cnt * mid; i++) {
            int x = outside[i];
            move_in(x);
            if (press_but() > mid) {
                move_out(x);
            } else {
                changed.push_back(x);
            }
        }
        if (sz(s) == distinct_cnt * mid) {
            l = mid;
        } else {
            r = mid - 1;
            pool = s;
            for (auto& a : changed) {
                move_out(a);
            }
        }
    }
    return l;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 300 KB Output is correct
8 Correct 5 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 5 ms 304 KB Output is correct
11 Correct 3 ms 304 KB Output is correct
12 Correct 7 ms 304 KB Output is correct
13 Correct 6 ms 304 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 6 ms 312 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 6 ms 208 KB Output is correct
18 Correct 6 ms 304 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 4 ms 300 KB Output is correct
21 Correct 3 ms 336 KB Output is correct
22 Correct 2 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 300 KB Output is correct
8 Correct 5 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 5 ms 304 KB Output is correct
11 Correct 3 ms 304 KB Output is correct
12 Correct 7 ms 304 KB Output is correct
13 Correct 6 ms 304 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 6 ms 312 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 6 ms 208 KB Output is correct
18 Correct 6 ms 304 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 4 ms 300 KB Output is correct
21 Correct 3 ms 336 KB Output is correct
22 Correct 2 ms 208 KB Output is correct
23 Correct 21 ms 356 KB Output is correct
24 Correct 10 ms 336 KB Output is correct
25 Correct 22 ms 300 KB Output is correct
26 Correct 29 ms 344 KB Output is correct
27 Correct 28 ms 300 KB Output is correct
28 Correct 10 ms 300 KB Output is correct
29 Correct 29 ms 392 KB Output is correct
30 Correct 29 ms 348 KB Output is correct
31 Correct 28 ms 368 KB Output is correct
32 Correct 27 ms 332 KB Output is correct
33 Correct 19 ms 424 KB Output is correct
34 Correct 27 ms 288 KB Output is correct
35 Correct 24 ms 372 KB Output is correct
36 Correct 27 ms 300 KB Output is correct
37 Correct 28 ms 304 KB Output is correct
38 Correct 25 ms 300 KB Output is correct
39 Correct 26 ms 308 KB Output is correct
40 Correct 14 ms 368 KB Output is correct
41 Correct 8 ms 332 KB Output is correct

Subtask #3
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 31 ms 440 KB Output is correct
8 Correct 16 ms 376 KB Output is correct
9 Correct 22 ms 456 KB Output is correct
10 Correct 57 ms 424 KB Output is correct
11 Correct 42 ms 412 KB Output is correct
12 Correct 23 ms 436 KB Output is correct
13 Correct 59 ms 424 KB Output is correct
14 Correct 49 ms 552 KB Output is correct
15 Correct 32 ms 456 KB Output is correct
16 Correct 46 ms 428 KB Output is correct
17 Correct 23 ms 432 KB Output is correct
18 Correct 56 ms 468 KB Output is correct
19 Correct 50 ms 452 KB Output is correct
20 Correct 37 ms 456 KB Output is correct
21 Correct 43 ms 460 KB Output is correct
22 Correct 60 ms 448 KB Output is correct
23 Correct 38 ms 332 KB Output is correct
24 Correct 36 ms 316 KB Output is correct
25 Correct 19 ms 448 KB Output is correct
26 Correct 18 ms 332 KB Output is correct
27 Correct 53 ms 572 KB Output is correct
28 Correct 57 ms 420 KB Output is correct
29 Correct 47 ms 424 KB Output is correct
30 Correct 49 ms 456 KB Output is correct
31 Correct 46 ms 424 KB Output is correct
32 Correct 29 ms 480 KB Output is correct
33 Correct 45 ms 424 KB Output is correct
34 Correct 56 ms 436 KB Output is correct
35 Correct 58 ms 444 KB Output is correct
36 Correct 53 ms 420 KB Output is correct
37 Correct 60 ms 452 KB Output is correct
38 Correct 63 ms 448 KB Output is correct
39 Correct 57 ms 420 KB Output is correct
40 Correct 58 ms 468 KB Output is correct
41 Correct 51 ms 496 KB Output is correct
42 Correct 45 ms 452 KB Output is correct
43 Correct 11 ms 304 KB Output is correct
44 Correct 54 ms 288 KB Output is correct
45 Correct 39 ms 416 KB Output is correct
46 Correct 30 ms 312 KB Output is correct
47 Correct 29 ms 436 KB Output is correct
48 Correct 30 ms 320 KB Output is correct