oj.uz

Submission #452021

# Submission time Handle Problem Language Result Execution time Memory
452021 2021-08-03T16:14:44 Z dxz05 Bootfall (IZhO17_bootfall) C++14
65 / 100
 999 ms 1528 KB 
#pragma GCC optimize("Ofast,O2,O3")
#pragma GCC target("avx2")

#include <bits/stdc++.h>

using namespace std;

void debug_out() { cerr << endl; }

template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << "[" << H << "]";
    debug_out(T...);
}

#ifdef dddxxz
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif

#define SZ(s) ((int)s.size())
#define all(x) (x).begin(), (x).end()
#define revall(x) (x).rbegin(), (x).rend()

clock_t startTime;

double getCurrentTime() {
    return (double) (clock() - startTime) / CLOCKS_PER_SEC;
}

#define MP make_pair

typedef long long ll;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
const double eps = 0.00001;
const int MOD = 1e9;
const int INF = 1000000101;
const long long LLINF = 1223372000000000555;
const int N = 2e6 + 3e2;
const int M = 1024;

int a[N];
int cnt[N];
void solve(int TC) {
    int n;
    cin >> n;

    const int MAXX = 500*500 + 50;
    bitset<MAXX> bb;
    bb[0] = 1;
    int sum = 0;
    for (int i = 1; i <= n; i++){
        cin >> a[i];
        sum += a[i];
        bb |= bb << a[i];
    }

    if (sum % 2 || !bb[sum / 2]){
        cout << 0;
        return;
    }

    for (int i = 1; i <= n; i++){
        bitset<MAXX/2> b;
        b[0] = 1;
        for (int j = 1; j <= n; j++){
            if (i != j) b |= b << a[j];
        }
        for (int j = 1; j < MAXX / 2; j++){
            int x = 2 * j - sum + a[i];
            if (b[j] && x > 0) cnt[x]++;
        }
    }

    vector<int> ans;
    for (int i = 1; i < MAXX; i++){
        if (cnt[i] == n) ans.push_back(i);
    }

    cout << ans.size() << endl;
    for (int x : ans) cout << x << ' ';

}

int main() {
    startTime = clock();
    cin.tie(nullptr);
    cout.tie(nullptr);
    ios_base::sync_with_stdio(false);

    bool llololcal = false;
#ifdef dddxxz
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    llololcal = true;
#endif

    int TC = 1;
    //cin >> TC;

    for (int test = 1; test <= TC; test++) {
        debug(test);
        //cout << "Case #" << test << ": ";
        solve(test);
    }

    if (llololcal) cerr << endl << "Time: " << int(getCurrentTime() * 1000) << " ms" << endl;

    return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:19:20: warning: statement has no effect [-Wunused-value]
   19 | #define debug(...) 42
      |                    ^~
bootfall.cpp:103:9: note: in expansion of macro 'debug'
  103 |         debug(test);
      |         ^~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 3 ms 332 KB Output is correct
5 Correct 4 ms 436 KB Output is correct
6 Correct 3 ms 332 KB Output is correct
7 Correct 2 ms 332 KB Output is correct
8 Correct 4 ms 332 KB Output is correct
9 Correct 3 ms 332 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 3 ms 332 KB Output is correct
5 Correct 4 ms 436 KB Output is correct
6 Correct 3 ms 332 KB Output is correct
7 Correct 2 ms 332 KB Output is correct
8 Correct 4 ms 332 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 10 ms 428 KB Output is correct
11 Correct 13 ms 332 KB Output is correct
12 Correct 10 ms 332 KB Output is correct
13 Correct 8 ms 332 KB Output is correct
14 Correct 9 ms 332 KB Output is correct
15 Correct 9 ms 432 KB Output is correct
16 Correct 10 ms 432 KB Output is correct
17 Correct 6 ms 432 KB Output is correct
18 Correct 8 ms 332 KB Output is correct
19 Correct 9 ms 332 KB Output is correct
20 Correct 10 ms 332 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 3 ms 332 KB Output is correct
5 Correct 4 ms 436 KB Output is correct
6 Correct 3 ms 332 KB Output is correct
7 Correct 2 ms 332 KB Output is correct
8 Correct 4 ms 332 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 10 ms 428 KB Output is correct
11 Correct 13 ms 332 KB Output is correct
12 Correct 10 ms 332 KB Output is correct
13 Correct 8 ms 332 KB Output is correct
14 Correct 9 ms 332 KB Output is correct
15 Correct 9 ms 432 KB Output is correct
16 Correct 10 ms 432 KB Output is correct
17 Correct 6 ms 432 KB Output is correct
18 Correct 8 ms 332 KB Output is correct
19 Correct 9 ms 332 KB Output is correct
20 Correct 10 ms 332 KB Output is correct
21 Correct 30 ms 440 KB Output is correct
22 Correct 35 ms 432 KB Output is correct
23 Correct 20 ms 440 KB Output is correct
24 Correct 50 ms 440 KB Output is correct
25 Correct 51 ms 452 KB Output is correct
26 Correct 56 ms 460 KB Output is correct
27 Correct 57 ms 464 KB Output is correct
28 Correct 57 ms 460 KB Output is correct
29 Correct 56 ms 460 KB Output is correct
30 Correct 71 ms 332 KB Output is correct
31 Correct 56 ms 452 KB Output is correct
32 Correct 55 ms 440 KB Output is correct
33 Correct 56 ms 460 KB Output is correct
34 Correct 56 ms 460 KB Output is correct
35 Correct 56 ms 460 KB Output is correct
36 Correct 58 ms 436 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 3 ms 332 KB Output is correct
5 Correct 4 ms 436 KB Output is correct
6 Correct 3 ms 332 KB Output is correct
7 Correct 2 ms 332 KB Output is correct
8 Correct 4 ms 332 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 10 ms 428 KB Output is correct
11 Correct 13 ms 332 KB Output is correct
12 Correct 10 ms 332 KB Output is correct
13 Correct 8 ms 332 KB Output is correct
14 Correct 9 ms 332 KB Output is correct
15 Correct 9 ms 432 KB Output is correct
16 Correct 10 ms 432 KB Output is correct
17 Correct 6 ms 432 KB Output is correct
18 Correct 8 ms 332 KB Output is correct
19 Correct 9 ms 332 KB Output is correct
20 Correct 10 ms 332 KB Output is correct
21 Correct 30 ms 440 KB Output is correct
22 Correct 35 ms 432 KB Output is correct
23 Correct 20 ms 440 KB Output is correct
24 Correct 50 ms 440 KB Output is correct
25 Correct 51 ms 452 KB Output is correct
26 Correct 56 ms 460 KB Output is correct
27 Correct 57 ms 464 KB Output is correct
28 Correct 57 ms 460 KB Output is correct
29 Correct 56 ms 460 KB Output is correct
30 Correct 71 ms 332 KB Output is correct
31 Correct 56 ms 452 KB Output is correct
32 Correct 55 ms 440 KB Output is correct
33 Correct 56 ms 460 KB Output is correct
34 Correct 56 ms 460 KB Output is correct
35 Correct 56 ms 460 KB Output is correct
36 Correct 58 ms 436 KB Output is correct
37 Correct 185 ms 612 KB Output is correct
38 Correct 181 ms 612 KB Output is correct
39 Correct 277 ms 660 KB Output is correct
40 Correct 312 ms 676 KB Output is correct
41 Correct 313 ms 716 KB Output is correct
42 Correct 271 ms 660 KB Output is correct
43 Correct 272 ms 1012 KB Output is correct
44 Correct 288 ms 1008 KB Output is correct
45 Correct 278 ms 1024 KB Output is correct
46 Correct 322 ms 552 KB Output is correct
47 Correct 277 ms 724 KB Output is correct
48 Correct 279 ms 908 KB Output is correct
49 Correct 283 ms 668 KB Output is correct
50 Correct 272 ms 708 KB Output is correct
51 Correct 2 ms 332 KB Output is correct
52 Correct 333 ms 1076 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 3 ms 332 KB Output is correct
5 Correct 4 ms 436 KB Output is correct
6 Correct 3 ms 332 KB Output is correct
7 Correct 2 ms 332 KB Output is correct
8 Correct 4 ms 332 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 10 ms 428 KB Output is correct
11 Correct 13 ms 332 KB Output is correct
12 Correct 10 ms 332 KB Output is correct
13 Correct 8 ms 332 KB Output is correct
14 Correct 9 ms 332 KB Output is correct
15 Correct 9 ms 432 KB Output is correct
16 Correct 10 ms 432 KB Output is correct
17 Correct 6 ms 432 KB Output is correct
18 Correct 8 ms 332 KB Output is correct
19 Correct 9 ms 332 KB Output is correct
20 Correct 10 ms 332 KB Output is correct
21 Correct 30 ms 440 KB Output is correct
22 Correct 35 ms 432 KB Output is correct
23 Correct 20 ms 440 KB Output is correct
24 Correct 50 ms 440 KB Output is correct
25 Correct 51 ms 452 KB Output is correct
26 Correct 56 ms 460 KB Output is correct
27 Correct 57 ms 464 KB Output is correct
28 Correct 57 ms 460 KB Output is correct
29 Correct 56 ms 460 KB Output is correct
30 Correct 71 ms 332 KB Output is correct
31 Correct 56 ms 452 KB Output is correct
32 Correct 55 ms 440 KB Output is correct
33 Correct 56 ms 460 KB Output is correct
34 Correct 56 ms 460 KB Output is correct
35 Correct 56 ms 460 KB Output is correct
36 Correct 58 ms 436 KB Output is correct
37 Correct 185 ms 612 KB Output is correct
38 Correct 181 ms 612 KB Output is correct
39 Correct 277 ms 660 KB Output is correct
40 Correct 312 ms 676 KB Output is correct
41 Correct 313 ms 716 KB Output is correct
42 Correct 271 ms 660 KB Output is correct
43 Correct 272 ms 1012 KB Output is correct
44 Correct 288 ms 1008 KB Output is correct
45 Correct 278 ms 1024 KB Output is correct
46 Correct 322 ms 552 KB Output is correct
47 Correct 277 ms 724 KB Output is correct
48 Correct 279 ms 908 KB Output is correct
49 Correct 283 ms 668 KB Output is correct
50 Correct 272 ms 708 KB Output is correct
51 Correct 2 ms 332 KB Output is correct
52 Correct 333 ms 1076 KB Output is correct
53 Correct 395 ms 848 KB Output is correct
54 Correct 518 ms 1020 KB Output is correct
55 Correct 514 ms 1368 KB Output is correct
56 Correct 400 ms 1032 KB Output is correct
57 Correct 518 ms 1528 KB Output is correct
58 Correct 544 ms 1064 KB Output is correct
59 Correct 512 ms 1104 KB Output is correct
60 Correct 3 ms 332 KB Output is correct
61 Correct 515 ms 1280 KB Output is correct
62 Correct 434 ms 1308 KB Output is correct
63 Correct 441 ms 1340 KB Output is correct
64 Correct 416 ms 1360 KB Output is correct
65 Correct 433 ms 588 KB Output is correct
66 Correct 414 ms 708 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 3 ms 332 KB Output is correct
5 Correct 4 ms 436 KB Output is correct
6 Correct 3 ms 332 KB Output is correct
7 Correct 2 ms 332 KB Output is correct
8 Correct 4 ms 332 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 10 ms 428 KB Output is correct
11 Correct 13 ms 332 KB Output is correct
12 Correct 10 ms 332 KB Output is correct
13 Correct 8 ms 332 KB Output is correct
14 Correct 9 ms 332 KB Output is correct
15 Correct 9 ms 432 KB Output is correct
16 Correct 10 ms 432 KB Output is correct
17 Correct 6 ms 432 KB Output is correct
18 Correct 8 ms 332 KB Output is correct
19 Correct 9 ms 332 KB Output is correct
20 Correct 10 ms 332 KB Output is correct
21 Correct 30 ms 440 KB Output is correct
22 Correct 35 ms 432 KB Output is correct
23 Correct 20 ms 440 KB Output is correct
24 Correct 50 ms 440 KB Output is correct
25 Correct 51 ms 452 KB Output is correct
26 Correct 56 ms 460 KB Output is correct
27 Correct 57 ms 464 KB Output is correct
28 Correct 57 ms 460 KB Output is correct
29 Correct 56 ms 460 KB Output is correct
30 Correct 71 ms 332 KB Output is correct
31 Correct 56 ms 452 KB Output is correct
32 Correct 55 ms 440 KB Output is correct
33 Correct 56 ms 460 KB Output is correct
34 Correct 56 ms 460 KB Output is correct
35 Correct 56 ms 460 KB Output is correct
36 Correct 58 ms 436 KB Output is correct
37 Correct 185 ms 612 KB Output is correct
38 Correct 181 ms 612 KB Output is correct
39 Correct 277 ms 660 KB Output is correct
40 Correct 312 ms 676 KB Output is correct
41 Correct 313 ms 716 KB Output is correct
42 Correct 271 ms 660 KB Output is correct
43 Correct 272 ms 1012 KB Output is correct
44 Correct 288 ms 1008 KB Output is correct
45 Correct 278 ms 1024 KB Output is correct
46 Correct 322 ms 552 KB Output is correct
47 Correct 277 ms 724 KB Output is correct
48 Correct 279 ms 908 KB Output is correct
49 Correct 283 ms 668 KB Output is correct
50 Correct 272 ms 708 KB Output is correct
51 Correct 2 ms 332 KB Output is correct
52 Correct 333 ms 1076 KB Output is correct
53 Correct 395 ms 848 KB Output is correct
54 Correct 518 ms 1020 KB Output is correct
55 Correct 514 ms 1368 KB Output is correct
56 Correct 400 ms 1032 KB Output is correct
57 Correct 518 ms 1528 KB Output is correct
58 Correct 544 ms 1064 KB Output is correct
59 Correct 512 ms 1104 KB Output is correct
60 Correct 3 ms 332 KB Output is correct
61 Correct 515 ms 1280 KB Output is correct
62 Correct 434 ms 1308 KB Output is correct
63 Correct 441 ms 1340 KB Output is correct
64 Correct 416 ms 1360 KB Output is correct
65 Correct 433 ms 588 KB Output is correct
66 Correct 414 ms 708 KB Output is correct
67 Correct 652 ms 1244 KB Output is correct
68 Correct 4 ms 332 KB Output is correct
69 Incorrect 999 ms 840 KB Output isn't correct
70 Halted 0 ms 0 KB -