oj.uz

Submission #679700

# Submission time Handle Problem Language Result Execution time Memory
679700 2023-01-09T01:50:03 Z vjudge1 Bootfall (IZhO17_bootfall) C++14
65 / 100
 1000 ms 1904 KB 
#include <bits/stdc++.h>
using namespace std;

#define F first
#define S second
#define pb push_back
#define all(a) a.begin(), a.end()

typedef long long ll;
typedef pair<int, int> ii;

const int N = 500 + 5;
const ii mod = {1e9 + 7, 1e9 + 21};

ii dp[N * N];
int n, sum;
int a[N], cnt[N * N];

void fix(int &a, const int &mod)
{
    if(a >= mod) a -= mod;
    if(a < 0) a += mod;
}

void add(int x)
{
    for(int i = sum; i >= x; i--)
    {
        dp[i].F += dp[i - x].F;
        dp[i].S += dp[i - x].S;
        fix(dp[i].F, mod.F), fix(dp[i].S, mod.S);
    }
}

void del(int x)
{
    for(int i = x; i <= sum; i++)
    {
        dp[i].F -= dp[i - x].F;
        dp[i].S -= dp[i - x].S;
        fix(dp[i].F, mod.F), fix(dp[i].S, mod.S);
    }
}

void solve()
{
    cin >> n;
    for(int i = 1; i <= n; i++)
        cin >> a[i], sum += a[i];
    if(sum & 1) cout << 0, exit(0);
    
    int tmp = sum;
    sum /= 2;
    dp[0] = {1, 1};
    for(int i = 1; i <= n; i++) 
        add(a[i]);
    if(dp[sum].F == 0 && dp[sum].S == 0) 
        cout << 0, exit(0);
        
    for(int i = 1; i <= n; i++)
    {
        del(a[i]);
        tmp -= a[i];
        vector<int> s;
        for(int i = 0; i <= tmp / 2; i++)
            if(dp[i].F != 0 || dp[i].S != 0)
            {
                int team1 = i;
                int team2 = tmp - team1;
                cnt[abs(team1 - team2)]++;
            }
        
        tmp += a[i];
        add(a[i]);
    }
    
    vector<int> res;
    for(int i = 1; i <= 500 * 500; i++)
        if(cnt[i] == n) res.pb(i);
    cout << res.size() << '\n';
    for(const int &x : res) cout << x << ' ';
}

signed main()
{
    cin.tie(0)->sync_with_stdio(0);
    int t = 1;
    // cin >> t;
    while(t--) solve();
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 7 ms 392 KB Output is correct
25 Correct 8 ms 400 KB Output is correct
26 Correct 9 ms 340 KB Output is correct
27 Correct 7 ms 340 KB Output is correct
28 Correct 6 ms 340 KB Output is correct
29 Correct 6 ms 340 KB Output is correct
30 Correct 6 ms 340 KB Output is correct
31 Correct 9 ms 340 KB Output is correct
32 Correct 7 ms 340 KB Output is correct
33 Correct 5 ms 340 KB Output is correct
34 Correct 5 ms 340 KB Output is correct
35 Correct 6 ms 340 KB Output is correct
36 Correct 7 ms 340 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 7 ms 392 KB Output is correct
25 Correct 8 ms 400 KB Output is correct
26 Correct 9 ms 340 KB Output is correct
27 Correct 7 ms 340 KB Output is correct
28 Correct 6 ms 340 KB Output is correct
29 Correct 6 ms 340 KB Output is correct
30 Correct 6 ms 340 KB Output is correct
31 Correct 9 ms 340 KB Output is correct
32 Correct 7 ms 340 KB Output is correct
33 Correct 5 ms 340 KB Output is correct
34 Correct 5 ms 340 KB Output is correct
35 Correct 6 ms 340 KB Output is correct
36 Correct 7 ms 340 KB Output is correct
37 Correct 50 ms 528 KB Output is correct
38 Correct 51 ms 588 KB Output is correct
39 Correct 38 ms 700 KB Output is correct
40 Correct 112 ms 692 KB Output is correct
41 Correct 58 ms 880 KB Output is correct
42 Correct 101 ms 704 KB Output is correct
43 Correct 164 ms 1228 KB Output is correct
44 Correct 168 ms 1056 KB Output is correct
45 Correct 175 ms 1140 KB Output is correct
46 Correct 68 ms 576 KB Output is correct
47 Correct 110 ms 704 KB Output is correct
48 Correct 152 ms 1044 KB Output is correct
49 Correct 108 ms 796 KB Output is correct
50 Correct 110 ms 692 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 215 ms 1244 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 7 ms 392 KB Output is correct
25 Correct 8 ms 400 KB Output is correct
26 Correct 9 ms 340 KB Output is correct
27 Correct 7 ms 340 KB Output is correct
28 Correct 6 ms 340 KB Output is correct
29 Correct 6 ms 340 KB Output is correct
30 Correct 6 ms 340 KB Output is correct
31 Correct 9 ms 340 KB Output is correct
32 Correct 7 ms 340 KB Output is correct
33 Correct 5 ms 340 KB Output is correct
34 Correct 5 ms 340 KB Output is correct
35 Correct 6 ms 340 KB Output is correct
36 Correct 7 ms 340 KB Output is correct
37 Correct 50 ms 528 KB Output is correct
38 Correct 51 ms 588 KB Output is correct
39 Correct 38 ms 700 KB Output is correct
40 Correct 112 ms 692 KB Output is correct
41 Correct 58 ms 880 KB Output is correct
42 Correct 101 ms 704 KB Output is correct
43 Correct 164 ms 1228 KB Output is correct
44 Correct 168 ms 1056 KB Output is correct
45 Correct 175 ms 1140 KB Output is correct
46 Correct 68 ms 576 KB Output is correct
47 Correct 110 ms 704 KB Output is correct
48 Correct 152 ms 1044 KB Output is correct
49 Correct 108 ms 796 KB Output is correct
50 Correct 110 ms 692 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 215 ms 1244 KB Output is correct
53 Correct 182 ms 1020 KB Output is correct
54 Correct 252 ms 1136 KB Output is correct
55 Correct 498 ms 1776 KB Output is correct
56 Correct 214 ms 1132 KB Output is correct
57 Correct 512 ms 1872 KB Output is correct
58 Correct 276 ms 1176 KB Output is correct
59 Correct 351 ms 1296 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 377 ms 1492 KB Output is correct
62 Correct 381 ms 1588 KB Output is correct
63 Correct 437 ms 1636 KB Output is correct
64 Correct 396 ms 1744 KB Output is correct
65 Correct 48 ms 696 KB Output is correct
66 Correct 75 ms 716 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 7 ms 392 KB Output is correct
25 Correct 8 ms 400 KB Output is correct
26 Correct 9 ms 340 KB Output is correct
27 Correct 7 ms 340 KB Output is correct
28 Correct 6 ms 340 KB Output is correct
29 Correct 6 ms 340 KB Output is correct
30 Correct 6 ms 340 KB Output is correct
31 Correct 9 ms 340 KB Output is correct
32 Correct 7 ms 340 KB Output is correct
33 Correct 5 ms 340 KB Output is correct
34 Correct 5 ms 340 KB Output is correct
35 Correct 6 ms 340 KB Output is correct
36 Correct 7 ms 340 KB Output is correct
37 Correct 50 ms 528 KB Output is correct
38 Correct 51 ms 588 KB Output is correct
39 Correct 38 ms 700 KB Output is correct
40 Correct 112 ms 692 KB Output is correct
41 Correct 58 ms 880 KB Output is correct
42 Correct 101 ms 704 KB Output is correct
43 Correct 164 ms 1228 KB Output is correct
44 Correct 168 ms 1056 KB Output is correct
45 Correct 175 ms 1140 KB Output is correct
46 Correct 68 ms 576 KB Output is correct
47 Correct 110 ms 704 KB Output is correct
48 Correct 152 ms 1044 KB Output is correct
49 Correct 108 ms 796 KB Output is correct
50 Correct 110 ms 692 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 215 ms 1244 KB Output is correct
53 Correct 182 ms 1020 KB Output is correct
54 Correct 252 ms 1136 KB Output is correct
55 Correct 498 ms 1776 KB Output is correct
56 Correct 214 ms 1132 KB Output is correct
57 Correct 512 ms 1872 KB Output is correct
58 Correct 276 ms 1176 KB Output is correct
59 Correct 351 ms 1296 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 377 ms 1492 KB Output is correct
62 Correct 381 ms 1588 KB Output is correct
63 Correct 437 ms 1636 KB Output is correct
64 Correct 396 ms 1744 KB Output is correct
65 Correct 48 ms 696 KB Output is correct
66 Correct 75 ms 716 KB Output is correct
67 Correct 397 ms 1524 KB Output is correct
68 Correct 138 ms 796 KB Output is correct
69 Execution timed out 1079 ms 1904 KB Time limit exceeded
70 Halted 0 ms 0 KB -