oj.uz

Submission #38469

# Submission time Handle Problem Language Result Execution time Memory
38469 2018-01-04T09:33:58 Z grumpy_gordon Bootfall (IZhO17_bootfall) C++14
13 / 100
 6 ms 17808 KB 
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#include <bits/stdc++.h>

//#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast,no-stack-protector")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx")
//#pragma GCC target("avx,tune=native")

using namespace std;

typedef long long ll;

typedef long double ld;

int mysqrt(ll x){
    int l = 0, r = 1e9 + 1;
    while (r - l > 1){
        int m = (l + r) / 2;
        if (m * (ll)m <= x)
            l = m;
        else
            r = m;
    }
    return l;
}

mt19937 rnd(1337);

ll AR = 19, BR = 13, CR = 23, XR = 228, YR = 322, MODR = 1e9 + 993;

ll myrand(){
    ll ZR = (XR * AR + YR * BR + CR) % MODR;
    XR = YR;
    YR = ZR;
    return ZR;
}

const int Mod = 1e9 + 7;

int bpow(int x, int y){
    if (y == 0)
        return 1;
    if (y == 1)
        return x;
    int ret = bpow(x, y >> 1);
    ret = (ret * (ll)ret) % Mod;
    if (y & 1)
        ret = (ret * (ll)x) % Mod;
    return ret;
}

int bdiv(int x, int y){
    return (x * (ll)bpow(y, Mod - 2)) % Mod;
}

void setmin(int &x, int y){
    x = min(x, y);
}

void setmax(int &x, int y){
    x = max(x, y);
}

const ll llinf = 1e18 + 100;

const int maxn = 1e5 + 100, inf = 2e9 + 100, sq = 2000, mod = 1e9 + 7, LG = 17;

bitset<500> q[500 * 500 + 1];

int n, a[500];

int main()
{
    #ifdef ONPC
    //ifstream cin("a.in");
    //ofstream cout("a.out");
    freopen("a.in", "r", stdin);
    freopen("a.out", "w", stdout);
    #else
    //ifstream cin("a.in");
    //ofstream cout("a.out");
    //freopen("trap.in", "r", stdin);
    //freopen("trap.out", "w", stdout);
    #endif // ONPC
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n;
    for (int i = 0; i < n; i++)
        q[0][i] = 1;
    int W = 0;
    for (int i = 0; i < n; i++){
        cin >> a[i];
        W += a[i];
    }
    for (int i = 1; i < n; i++)
    if ((a[i] & 1) != (a[0] & 1)){
        cout << 0 << '\n';
        return 0;
    }
    for (int i = 0; i < n; i++){
        for (int j = W; j >= a[i]; j--){
            if (q[j][i])
                q[j] |= q[j - a[i]];
            else
                q[j] |= q[j - a[i]], q[j][i] = 0;
        }
    }
    if ((W & 1) || q[W / 2].count() == 0){
        cout << 0 << '\n';
        return 0;
    }
    vector<int> ans;
    for (int k = 1; k <= W; k++)
    if ((k & 1) == (a[0] & 1)){
        bool is = 1;
        for (int i = 0; i < n && is; i++)
            if (!((k <= a[i] && q[(W + k - a[i]) / 2][i]) || (W - k - a[i] >= 0 && q[(W - k - a[i]) / 2][i])))
                is = 0;
        if (is)
            ans.push_back(k);
    }
    cout << ans.size() << '\n';
    for (auto i : ans)
        cout << i << ' ';
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 17808 KB Output is correct
2 Correct 0 ms 17808 KB Output is correct
3 Correct 0 ms 17808 KB Output is correct
4 Correct 0 ms 17808 KB Output is correct
5 Correct 0 ms 17808 KB Output is correct
6 Correct 0 ms 17808 KB Output is correct
7 Correct 0 ms 17808 KB Output is correct
8 Correct 0 ms 17808 KB Output is correct
9 Correct 0 ms 17808 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 17808 KB Output is correct
2 Correct 0 ms 17808 KB Output is correct
3 Correct 0 ms 17808 KB Output is correct
4 Correct 0 ms 17808 KB Output is correct
5 Correct 0 ms 17808 KB Output is correct
6 Correct 0 ms 17808 KB Output is correct
7 Correct 0 ms 17808 KB Output is correct
8 Correct 0 ms 17808 KB Output is correct
9 Correct 0 ms 17808 KB Output is correct
10 Correct 0 ms 17808 KB Output is correct
11 Correct 0 ms 17808 KB Output is correct
12 Correct 0 ms 17808 KB Output is correct
13 Correct 0 ms 17808 KB Output is correct
14 Correct 0 ms 17808 KB Output is correct
15 Correct 0 ms 17808 KB Output is correct
16 Correct 0 ms 17808 KB Output is correct
17 Correct 0 ms 17808 KB Output is correct
18 Correct 0 ms 17808 KB Output is correct
19 Correct 0 ms 17808 KB Output is correct
20 Correct 0 ms 17808 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 17808 KB Output is correct
2 Correct 0 ms 17808 KB Output is correct
3 Correct 0 ms 17808 KB Output is correct
4 Correct 0 ms 17808 KB Output is correct
5 Correct 0 ms 17808 KB Output is correct
6 Correct 0 ms 17808 KB Output is correct
7 Correct 0 ms 17808 KB Output is correct
8 Correct 0 ms 17808 KB Output is correct
9 Correct 0 ms 17808 KB Output is correct
10 Correct 0 ms 17808 KB Output is correct
11 Correct 0 ms 17808 KB Output is correct
12 Correct 0 ms 17808 KB Output is correct
13 Correct 0 ms 17808 KB Output is correct
14 Correct 0 ms 17808 KB Output is correct
15 Correct 0 ms 17808 KB Output is correct
16 Correct 0 ms 17808 KB Output is correct
17 Correct 0 ms 17808 KB Output is correct
18 Correct 0 ms 17808 KB Output is correct
19 Correct 0 ms 17808 KB Output is correct
20 Correct 0 ms 17808 KB Output is correct
21 Correct 3 ms 17808 KB Output is correct
22 Correct 3 ms 17808 KB Output is correct
23 Correct 0 ms 17808 KB Output is correct
24 Runtime error 6 ms 17808 KB Execution killed because of forbidden syscall writev (20)
25 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 17808 KB Output is correct
2 Correct 0 ms 17808 KB Output is correct
3 Correct 0 ms 17808 KB Output is correct
4 Correct 0 ms 17808 KB Output is correct
5 Correct 0 ms 17808 KB Output is correct
6 Correct 0 ms 17808 KB Output is correct
7 Correct 0 ms 17808 KB Output is correct
8 Correct 0 ms 17808 KB Output is correct
9 Correct 0 ms 17808 KB Output is correct
10 Correct 0 ms 17808 KB Output is correct
11 Correct 0 ms 17808 KB Output is correct
12 Correct 0 ms 17808 KB Output is correct
13 Correct 0 ms 17808 KB Output is correct
14 Correct 0 ms 17808 KB Output is correct
15 Correct 0 ms 17808 KB Output is correct
16 Correct 0 ms 17808 KB Output is correct
17 Correct 0 ms 17808 KB Output is correct
18 Correct 0 ms 17808 KB Output is correct
19 Correct 0 ms 17808 KB Output is correct
20 Correct 0 ms 17808 KB Output is correct
21 Correct 3 ms 17808 KB Output is correct
22 Correct 3 ms 17808 KB Output is correct
23 Correct 0 ms 17808 KB Output is correct
24 Runtime error 6 ms 17808 KB Execution killed because of forbidden syscall writev (20)
25 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 17808 KB Output is correct
2 Correct 0 ms 17808 KB Output is correct
3 Correct 0 ms 17808 KB Output is correct
4 Correct 0 ms 17808 KB Output is correct
5 Correct 0 ms 17808 KB Output is correct
6 Correct 0 ms 17808 KB Output is correct
7 Correct 0 ms 17808 KB Output is correct
8 Correct 0 ms 17808 KB Output is correct
9 Correct 0 ms 17808 KB Output is correct
10 Correct 0 ms 17808 KB Output is correct
11 Correct 0 ms 17808 KB Output is correct
12 Correct 0 ms 17808 KB Output is correct
13 Correct 0 ms 17808 KB Output is correct
14 Correct 0 ms 17808 KB Output is correct
15 Correct 0 ms 17808 KB Output is correct
16 Correct 0 ms 17808 KB Output is correct
17 Correct 0 ms 17808 KB Output is correct
18 Correct 0 ms 17808 KB Output is correct
19 Correct 0 ms 17808 KB Output is correct
20 Correct 0 ms 17808 KB Output is correct
21 Correct 3 ms 17808 KB Output is correct
22 Correct 3 ms 17808 KB Output is correct
23 Correct 0 ms 17808 KB Output is correct
24 Runtime error 6 ms 17808 KB Execution killed because of forbidden syscall writev (20)
25 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 17808 KB Output is correct
2 Correct 0 ms 17808 KB Output is correct
3 Correct 0 ms 17808 KB Output is correct
4 Correct 0 ms 17808 KB Output is correct
5 Correct 0 ms 17808 KB Output is correct
6 Correct 0 ms 17808 KB Output is correct
7 Correct 0 ms 17808 KB Output is correct
8 Correct 0 ms 17808 KB Output is correct
9 Correct 0 ms 17808 KB Output is correct
10 Correct 0 ms 17808 KB Output is correct
11 Correct 0 ms 17808 KB Output is correct
12 Correct 0 ms 17808 KB Output is correct
13 Correct 0 ms 17808 KB Output is correct
14 Correct 0 ms 17808 KB Output is correct
15 Correct 0 ms 17808 KB Output is correct
16 Correct 0 ms 17808 KB Output is correct
17 Correct 0 ms 17808 KB Output is correct
18 Correct 0 ms 17808 KB Output is correct
19 Correct 0 ms 17808 KB Output is correct
20 Correct 0 ms 17808 KB Output is correct
21 Correct 3 ms 17808 KB Output is correct
22 Correct 3 ms 17808 KB Output is correct
23 Correct 0 ms 17808 KB Output is correct
24 Runtime error 6 ms 17808 KB Execution killed because of forbidden syscall writev (20)
25 Halted 0 ms 0 KB -