Submission #663545

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
663545	2022-11-27T02:42:00 Z	Ninja_Kunai	Bootfall (IZhO17_bootfall)	C++14	28 / 100	1000 ms	728 KB

bootfall

/**
*    Author :  Nguyen Tuan Vu
*    Created : 27.11.2022
**/

#pragma GCC optimize("O2")
#pragma GCC target("avx,avx2,fma")
#include<bits/stdc++.h>
#define MASK(x) ((1)<<(x))
#define BIT(x, i) (((x)>>(i))&(1))
#define ALL(v)  (v).begin(), (v).end()
#define REP(i, n)  for (int i = 0, _n = (n); i < _n; ++i)
#define FOR(i, a, b)  for (int i = (a), _b = (b); i <= _b; ++i) 
#define FORD(i, b, a)  for (int i = (b), _a = (a); i >= _a; --i)
#define db(val) "["#val" = "<<(val)<<"] "
#define TIME  (1.0 * clock() / CLOCKS_PER_SEC)

template <class X, class Y> bool minimize(X &a, Y b) {
    if (a > b) return a = b, true;
    return false;
}
template <class X, class Y> bool maximize(X &a, Y b) {
    if (a < b) return a = b, true;
    return false;
}

using namespace std;

mt19937 jdg(chrono::steady_clock::now().time_since_epoch().count());
int Rand(int l, int r) {return l + jdg() % (r - l + 1);}

void file(){
    #define TASK "TASK"
    if(fopen(TASK".in", "r")) {
        freopen(TASK".in", "r", stdin);
        freopen(TASK".out", "w", stdout);
    }
}

const int N = 5e2 + 5;
const int M = 5e2 * 5e2;
int n, a[N], b[N];
bitset <2 * M + 5> dp[2];

bitset <2 * M + 5> calc(int n) {
	dp[0].reset(); dp[1].reset();
	dp[0][M] = 1;
	REP(i, n) {
		if (dp[i & 1].count() == 0) break; 
		dp[(i + 1) & 1] |= dp[i & 1] << b[i + 1];
		dp[(i + 1) & 1] |= dp[i & 1] >> b[i + 1];

		dp[i & 1].reset();
	}

	return dp[n & 1];
}

int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    file();
    cin >> n;
    FOR(i, 1, n) cin >> a[i], b[i] = a[i];
    if (calc(n)[M] == 0) return cout << 0, 0;
    bitset <2 * M + 5> tmp;
    FOR(i, 0, 2 * M) tmp[i] = 1;
    FOR(i, 1, n) {
    	int cnt = 0;
    	FOR(j, 1, n) if (i != j) b[++cnt] = a[j];
    	tmp &= calc(n - 1);
    	if (tmp.count() == 0) break;
    }

    vector <int> ans;
    FOR(i, 0, 2 * M) if (tmp[i]) ans.push_back(abs(i - M));
    sort (ALL(ans)); ans.erase(unique(ALL(ans)), ans.end());
    cout << ans.size() << '\n';
    for (auto x : ans) cout << x << ' ';
    cerr << "Time elapsed: " << TIME << " s.\n";
    return 0;
}

/*
==================================================+
INPUT:                                            |
--------------------------------------------------|

--------------------------------------------------|
==================================================+
OUTPUT:                                           |
--------------------------------------------------|

--------------------------------------------------|
==================================================+
*/

Compilation message

bootfall.cpp: In function 'void file()':
bootfall.cpp:35:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |         freopen(TASK".in", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bootfall.cpp:36:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |         freopen(TASK".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	596 KB	Output is correct
2	Correct	3 ms	596 KB	Output is correct
3	Correct	1 ms	596 KB	Output is correct
4	Correct	2 ms	596 KB	Output is correct
5	Correct	7 ms	596 KB	Output is correct
6	Correct	4 ms	692 KB	Output is correct
7	Correct	4 ms	596 KB	Output is correct
8	Correct	7 ms	596 KB	Output is correct
9	Correct	3 ms	596 KB	Output is correct

Subtask #2

7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	596 KB	Output is correct
2	Correct	3 ms	596 KB	Output is correct
3	Correct	1 ms	596 KB	Output is correct
4	Correct	2 ms	596 KB	Output is correct
5	Correct	7 ms	596 KB	Output is correct
6	Correct	4 ms	692 KB	Output is correct
7	Correct	4 ms	596 KB	Output is correct
8	Correct	7 ms	596 KB	Output is correct
9	Correct	3 ms	596 KB	Output is correct
10	Correct	37 ms	596 KB	Output is correct
11	Correct	35 ms	676 KB	Output is correct
12	Correct	5 ms	596 KB	Output is correct
13	Correct	6 ms	596 KB	Output is correct
14	Correct	31 ms	596 KB	Output is correct
15	Correct	30 ms	688 KB	Output is correct
16	Correct	34 ms	676 KB	Output is correct
17	Correct	14 ms	596 KB	Output is correct
18	Correct	24 ms	684 KB	Output is correct
19	Correct	26 ms	680 KB	Output is correct
20	Correct	34 ms	596 KB	Output is correct

Subtask #3

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	596 KB	Output is correct
2	Correct	3 ms	596 KB	Output is correct
3	Correct	1 ms	596 KB	Output is correct
4	Correct	2 ms	596 KB	Output is correct
5	Correct	7 ms	596 KB	Output is correct
6	Correct	4 ms	692 KB	Output is correct
7	Correct	4 ms	596 KB	Output is correct
8	Correct	7 ms	596 KB	Output is correct
9	Correct	3 ms	596 KB	Output is correct
10	Correct	37 ms	596 KB	Output is correct
11	Correct	35 ms	676 KB	Output is correct
12	Correct	5 ms	596 KB	Output is correct
13	Correct	6 ms	596 KB	Output is correct
14	Correct	31 ms	596 KB	Output is correct
15	Correct	30 ms	688 KB	Output is correct
16	Correct	34 ms	676 KB	Output is correct
17	Correct	14 ms	596 KB	Output is correct
18	Correct	24 ms	684 KB	Output is correct
19	Correct	26 ms	680 KB	Output is correct
20	Correct	34 ms	596 KB	Output is correct
21	Correct	153 ms	668 KB	Output is correct
22	Correct	199 ms	672 KB	Output is correct
23	Correct	93 ms	664 KB	Output is correct
24	Correct	320 ms	668 KB	Output is correct
25	Correct	317 ms	668 KB	Output is correct
26	Correct	360 ms	672 KB	Output is correct
27	Correct	366 ms	668 KB	Output is correct
28	Correct	353 ms	668 KB	Output is correct
29	Correct	365 ms	668 KB	Output is correct
30	Correct	23 ms	596 KB	Output is correct
31	Correct	361 ms	716 KB	Output is correct
32	Correct	361 ms	680 KB	Output is correct
33	Correct	365 ms	672 KB	Output is correct
34	Correct	365 ms	680 KB	Output is correct
35	Correct	358 ms	728 KB	Output is correct
36	Correct	366 ms	664 KB	Output is correct

Subtask #4

0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	596 KB	Output is correct
2	Correct	3 ms	596 KB	Output is correct
3	Correct	1 ms	596 KB	Output is correct
4	Correct	2 ms	596 KB	Output is correct
5	Correct	7 ms	596 KB	Output is correct
6	Correct	4 ms	692 KB	Output is correct
7	Correct	4 ms	596 KB	Output is correct
8	Correct	7 ms	596 KB	Output is correct
9	Correct	3 ms	596 KB	Output is correct
10	Correct	37 ms	596 KB	Output is correct
11	Correct	35 ms	676 KB	Output is correct
12	Correct	5 ms	596 KB	Output is correct
13	Correct	6 ms	596 KB	Output is correct
14	Correct	31 ms	596 KB	Output is correct
15	Correct	30 ms	688 KB	Output is correct
16	Correct	34 ms	676 KB	Output is correct
17	Correct	14 ms	596 KB	Output is correct
18	Correct	24 ms	684 KB	Output is correct
19	Correct	26 ms	680 KB	Output is correct
20	Correct	34 ms	596 KB	Output is correct
21	Correct	153 ms	668 KB	Output is correct
22	Correct	199 ms	672 KB	Output is correct
23	Correct	93 ms	664 KB	Output is correct
24	Correct	320 ms	668 KB	Output is correct
25	Correct	317 ms	668 KB	Output is correct
26	Correct	360 ms	672 KB	Output is correct
27	Correct	366 ms	668 KB	Output is correct
28	Correct	353 ms	668 KB	Output is correct
29	Correct	365 ms	668 KB	Output is correct
30	Correct	23 ms	596 KB	Output is correct
31	Correct	361 ms	716 KB	Output is correct
32	Correct	361 ms	680 KB	Output is correct
33	Correct	365 ms	672 KB	Output is correct
34	Correct	365 ms	680 KB	Output is correct
35	Correct	358 ms	728 KB	Output is correct
36	Correct	366 ms	664 KB	Output is correct
37	Execution timed out	1095 ms	596 KB	Time limit exceeded
38	Halted	0 ms	0 KB	-

Subtask #5

0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	596 KB	Output is correct
2	Correct	3 ms	596 KB	Output is correct
3	Correct	1 ms	596 KB	Output is correct
4	Correct	2 ms	596 KB	Output is correct
5	Correct	7 ms	596 KB	Output is correct
6	Correct	4 ms	692 KB	Output is correct
7	Correct	4 ms	596 KB	Output is correct
8	Correct	7 ms	596 KB	Output is correct
9	Correct	3 ms	596 KB	Output is correct
10	Correct	37 ms	596 KB	Output is correct
11	Correct	35 ms	676 KB	Output is correct
12	Correct	5 ms	596 KB	Output is correct
13	Correct	6 ms	596 KB	Output is correct
14	Correct	31 ms	596 KB	Output is correct
15	Correct	30 ms	688 KB	Output is correct
16	Correct	34 ms	676 KB	Output is correct
17	Correct	14 ms	596 KB	Output is correct
18	Correct	24 ms	684 KB	Output is correct
19	Correct	26 ms	680 KB	Output is correct
20	Correct	34 ms	596 KB	Output is correct
21	Correct	153 ms	668 KB	Output is correct
22	Correct	199 ms	672 KB	Output is correct
23	Correct	93 ms	664 KB	Output is correct
24	Correct	320 ms	668 KB	Output is correct
25	Correct	317 ms	668 KB	Output is correct
26	Correct	360 ms	672 KB	Output is correct
27	Correct	366 ms	668 KB	Output is correct
28	Correct	353 ms	668 KB	Output is correct
29	Correct	365 ms	668 KB	Output is correct
30	Correct	23 ms	596 KB	Output is correct
31	Correct	361 ms	716 KB	Output is correct
32	Correct	361 ms	680 KB	Output is correct
33	Correct	365 ms	672 KB	Output is correct
34	Correct	365 ms	680 KB	Output is correct
35	Correct	358 ms	728 KB	Output is correct
36	Correct	366 ms	664 KB	Output is correct
37	Execution timed out	1095 ms	596 KB	Time limit exceeded
38	Halted	0 ms	0 KB	-

Subtask #6

0 / 35.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	596 KB	Output is correct
2	Correct	3 ms	596 KB	Output is correct
3	Correct	1 ms	596 KB	Output is correct
4	Correct	2 ms	596 KB	Output is correct
5	Correct	7 ms	596 KB	Output is correct
6	Correct	4 ms	692 KB	Output is correct
7	Correct	4 ms	596 KB	Output is correct
8	Correct	7 ms	596 KB	Output is correct
9	Correct	3 ms	596 KB	Output is correct
10	Correct	37 ms	596 KB	Output is correct
11	Correct	35 ms	676 KB	Output is correct
12	Correct	5 ms	596 KB	Output is correct
13	Correct	6 ms	596 KB	Output is correct
14	Correct	31 ms	596 KB	Output is correct
15	Correct	30 ms	688 KB	Output is correct
16	Correct	34 ms	676 KB	Output is correct
17	Correct	14 ms	596 KB	Output is correct
18	Correct	24 ms	684 KB	Output is correct
19	Correct	26 ms	680 KB	Output is correct
20	Correct	34 ms	596 KB	Output is correct
21	Correct	153 ms	668 KB	Output is correct
22	Correct	199 ms	672 KB	Output is correct
23	Correct	93 ms	664 KB	Output is correct
24	Correct	320 ms	668 KB	Output is correct
25	Correct	317 ms	668 KB	Output is correct
26	Correct	360 ms	672 KB	Output is correct
27	Correct	366 ms	668 KB	Output is correct
28	Correct	353 ms	668 KB	Output is correct
29	Correct	365 ms	668 KB	Output is correct
30	Correct	23 ms	596 KB	Output is correct
31	Correct	361 ms	716 KB	Output is correct
32	Correct	361 ms	680 KB	Output is correct
33	Correct	365 ms	672 KB	Output is correct
34	Correct	365 ms	680 KB	Output is correct
35	Correct	358 ms	728 KB	Output is correct
36	Correct	366 ms	664 KB	Output is correct
37	Execution timed out	1095 ms	596 KB	Time limit exceeded
38	Halted	0 ms	0 KB	-