oj.uz

Submission #158038

# Submission time Handle Problem Language Result Execution time Memory
158038 2019-10-14T13:19:37 Z hentai_lover Bootfall (IZhO17_bootfall) C++14
13 / 100
 1000 ms 7388 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

#define lft(x) x * 2
#define rgt(x) x * 2 + 1

#define tm hui_pizda
#define ft first
#define sd second
#define pb push_back
#define pf push_front
#define sz size()
#define cnt continue
#define m_p make_pair
#define fr(i, l, r) for(int i = l; i <= r; ++ i)
#define rf(i, r, l) for(int i = r; i >= l; -- i)
#define all(x) x.begin(), x.end()
#pragma GCC optimize(-O3)
#pragma GCC optimize(Ofast)
#pragma GCC optimize("unroll-loops")

using namespace __gnu_pbds;
using namespace std;

template <typename T>
using _set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

typedef int ll;
typedef long double ld;

typedef pair <ll, ll> pll;
typedef pair <int, int> pii;
typedef vector <int> vi;
typedef vector <ll> vl;
typedef vector <pii> vpi;
typedef vector <pll> vpl;

mt19937_64 rnd(time(NULL));

const ll N = 1e6 + 10;
const ll mtrxN = 10;
//const ll oo = 1e18 + 10;
const ll oo = 1e9 + 10;
const ll B = 500;
const ll mod = 1e9 + 7;

struct mtrx{
    ll m[mtrxN][mtrxN] = {};
};
mtrx mtrx_mult(mtrx a, mtrx b){
    mtrx c;
    fr(i, 0, mtrxN - 1){
        fr(j, 0, mtrxN - 1){
            ll sum = 0;
            fr(x, 0, mtrxN - 1){
                sum += a.m[i][x] * b.m[x][j];
                sum %= mod;
            }
            c.m[i][j] = sum;
        }
    }
    return c;
}
mtrx mtrx_pow(mtrx a, ll n){
    mtrx res;
    fr(i, 0, mtrxN - 1)fr(j, 0, mtrxN - 1)res.m[i][j] = a.m[i][j];
    n --;
    while(n){
        if(n&1)res = mtrx_mult(res, a);
        a = mtrx_mult(a, a);
        n >>= 1;
    }
    return res;
}
ll _pow(ll a, ll n){
    ll r = 1;
    while(n){
        if(n&1)r = r * a % mod;
        a = a * a % mod;
        n >>= 1;
    }
    return r;
}
ll div(ll x, ll y, ll md){
    return x * _pow(y, md - 2) % md;
}

ll a[N];
ll n, NN;

vector <ll> calc(ll x){
    vector <vl> dp;
    dp.resize(n + 1);
    fr(i, 0, n)dp[i].resize(2 * NN + 1);

    dp[0][NN] = 1;
    fr(i, 1, n){
        if(i != x){
            fr(j, 0, 2 * NN){
                if(j + a[i] <= 2 * NN)dp[i][j + a[i]] |= dp[i - 1][j];
                if(j - a[i] >= 0)dp[i][j - a[i]] |= dp[i - 1][j];
            }
        }   else dp[i] = dp[i - 1];
    }
    return dp[n];
}

int main(){
    ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    //NN = 10;

    NN = 0;
    cin >> n;
    if(n % 2 == 1)return cout << 0, 0;
    fr(i, 1, n)cin >> a[i], NN += a[i];
    vl ans(2 * NN + 1, 1);
    fr(i, 0, n){
        vl now = calc(i);
        if(i == 0){
            if(!now[NN])return cout << 0, 0;
            else cnt;
        }
        bool ok = 0;
        fr(j, 0, 2 * NN){
            ans[j] &= now[j];
            ok |= ans[j];
        }
        if(!ok)return cout << 0, 0;
    }

    set <ll> ra;
    fr(i, 0, 2 * NN)
        if(ans[i])ra.insert(abs(i - NN));

    cout << ra.sz << endl;
    for(auto i : ra)cout << i << ' ';
    cout << endl;

    return 0;
}
/*
*/

Compilation message

bootfall.cpp:18:22: warning: '#pragma GCC optimize' is not a string or number [-Wpragmas]
 #pragma GCC optimize(-O3)
                      ^
bootfall.cpp:19:22: warning: '#pragma GCC optimize' is not a string or number [-Wpragmas]
 #pragma GCC optimize(Ofast)
                      ^~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 5 ms 508 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 7 ms 552 KB Output is correct
9 Correct 0 ms 376 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 5 ms 508 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 7 ms 552 KB Output is correct
9 Correct 0 ms 376 KB Output is correct
10 Correct 11 ms 520 KB Output is correct
11 Correct 6 ms 380 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 6 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 4 ms 380 KB Output is correct
19 Correct 5 ms 504 KB Output is correct
20 Correct 12 ms 536 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 5 ms 508 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 7 ms 552 KB Output is correct
9 Correct 0 ms 376 KB Output is correct
10 Correct 11 ms 520 KB Output is correct
11 Correct 6 ms 380 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 6 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 4 ms 380 KB Output is correct
19 Correct 5 ms 504 KB Output is correct
20 Correct 12 ms 536 KB Output is correct
21 Correct 270 ms 2008 KB Output is correct
22 Correct 394 ms 2484 KB Output is correct
23 Correct 124 ms 1432 KB Output is correct
24 Correct 871 ms 4168 KB Output is correct
25 Execution timed out 1050 ms 7388 KB Time limit exceeded
26 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 5 ms 508 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 7 ms 552 KB Output is correct
9 Correct 0 ms 376 KB Output is correct
10 Correct 11 ms 520 KB Output is correct
11 Correct 6 ms 380 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 6 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 4 ms 380 KB Output is correct
19 Correct 5 ms 504 KB Output is correct
20 Correct 12 ms 536 KB Output is correct
21 Correct 270 ms 2008 KB Output is correct
22 Correct 394 ms 2484 KB Output is correct
23 Correct 124 ms 1432 KB Output is correct
24 Correct 871 ms 4168 KB Output is correct
25 Execution timed out 1050 ms 7388 KB Time limit exceeded
26 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 5 ms 508 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 7 ms 552 KB Output is correct
9 Correct 0 ms 376 KB Output is correct
10 Correct 11 ms 520 KB Output is correct
11 Correct 6 ms 380 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 6 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 4 ms 380 KB Output is correct
19 Correct 5 ms 504 KB Output is correct
20 Correct 12 ms 536 KB Output is correct
21 Correct 270 ms 2008 KB Output is correct
22 Correct 394 ms 2484 KB Output is correct
23 Correct 124 ms 1432 KB Output is correct
24 Correct 871 ms 4168 KB Output is correct
25 Execution timed out 1050 ms 7388 KB Time limit exceeded
26 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 5 ms 508 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 7 ms 552 KB Output is correct
9 Correct 0 ms 376 KB Output is correct
10 Correct 11 ms 520 KB Output is correct
11 Correct 6 ms 380 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 6 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 4 ms 380 KB Output is correct
19 Correct 5 ms 504 KB Output is correct
20 Correct 12 ms 536 KB Output is correct
21 Correct 270 ms 2008 KB Output is correct
22 Correct 394 ms 2484 KB Output is correct
23 Correct 124 ms 1432 KB Output is correct
24 Correct 871 ms 4168 KB Output is correct
25 Execution timed out 1050 ms 7388 KB Time limit exceeded
26 Halted 0 ms 0 KB -