oj.uz

Submission #171456

# Submission time Handle Problem Language Result Execution time Memory
171456 2019-12-28T16:54:32 Z ne4eHbKa Bank (IZhO14_bank) C++17
71 / 100
 1000 ms 20984 KB 
//{ <defines>
#ifndef _LOCAL
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#pragma GCC optimize("Ofast")
#endif

#include <bits/stdc++.h>
using namespace std;

#define fr(i, n) for(int i = 0; i < (n); ++i)
#define fo(n) fr(i, (n))

#define re return
#define ef else if
#define ifn(x) if(!(x))
#define _  << ' ' <<

#define ft first
#define sd second
#define ve vector
#define pb push_back
#define eb emplace_back

#define sz(x) int(x.size())
#define pw(x) (1 << (x))
#define PW(x) (1ll << (x))
#define bnd(x) x.begin(), x.end()
#define clr(x, y) memset(x, y, sizeof x)

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef ve<int> vi;

const int oo = 2e9;
const ll OO = 4e18;
//const ld pi = arg(complex<ld>(-1, 0));
//const ld pi2 = pi + pi;
const int md = 0x3b800001;
const int MD = 1e9 + 7;

inline ll time() {re chrono :: system_clock().now().time_since_epoch().count();}
mt19937 rnd(time());
mt19937_64 RND(time());

template<typename t> inline void umin(t &a, t b) {a = min(a, b);}
template<typename t> inline void umax(t &a, t b) {a = max(a, b);}
//} </defines>
const int N = 20;
const int M = 1 << N;

int n, m, a[N], b[N], s[M];
vi f[(int)2e4 + 5];

void solve() {
    cin >> n >> m;
    fo(n) cin >> a[i];
//    sort(a, a + n);
//    reverse(a, a + n);
    random_shuffle(a, a + n, [](int x){re rnd() % x;});
    fo(m) cin >> b[i];
    sort(b, b + m);

#ifdef _LOCAL
    for(auto &p : f) p.clear();
#endif

    fo(1 << m) {
        fr(j, m) ifn(i & pw(j)) s[i ^ pw(j)] = s[i] + b[j];
        f[s[i]].pb(i);
    }

    set<int> G, H; set<int> *g = &G, *h = &H;
    g -> insert(0);
    fo(n) {
        if(g -> empty() || f[a[i]].empty()) re void(cout << "NO\n");
        h -> clear();
        for(int t : *g) for(int j : f[a[i]]) ifn(j & t) h -> insert(j ^ t);
        swap(g, h);
    }
    cout << (g -> empty() ? "NO\n" : "YES\n");
}

int main() {
#ifdef _LOCAL
    freopen("in.txt", "r", stdin);
    int tests; cin >> tests;
    fo(tests) {
		cerr << "case #" << i+1 << endl;
		solve();
	}
#else
    ios_base :: sync_with_stdio(0); cin.tie(0); cout.tie(0);
	solve();
#endif
	return 0;
}

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 888 KB Output is correct
2 Correct 2 ms 760 KB Output is correct
3 Correct 3 ms 760 KB Output is correct
4 Correct 5 ms 1144 KB Output is correct
5 Correct 114 ms 10872 KB Output is correct
6 Correct 3 ms 888 KB Output is correct
7 Correct 3 ms 888 KB Output is correct
8 Correct 118 ms 10488 KB Output is correct
9 Correct 118 ms 10488 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 3 ms 888 KB Output is correct
3 Correct 3 ms 888 KB Output is correct
4 Correct 2 ms 888 KB Output is correct
5 Correct 2 ms 888 KB Output is correct
6 Correct 3 ms 888 KB Output is correct
7 Correct 3 ms 888 KB Output is correct
8 Correct 2 ms 888 KB Output is correct
9 Correct 2 ms 888 KB Output is correct
10 Correct 3 ms 760 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1016 KB Output is correct
2 Correct 5 ms 1016 KB Output is correct
3 Correct 5 ms 1144 KB Output is correct
4 Correct 4 ms 1016 KB Output is correct
5 Correct 5 ms 1016 KB Output is correct
6 Correct 5 ms 1012 KB Output is correct
7 Correct 5 ms 1016 KB Output is correct
8 Correct 5 ms 1016 KB Output is correct
9 Correct 4 ms 1016 KB Output is correct
10 Correct 4 ms 1144 KB Output is correct
11 Correct 4 ms 1016 KB Output is correct

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 888 KB Output is correct
2 Correct 2 ms 760 KB Output is correct
3 Correct 3 ms 760 KB Output is correct
4 Correct 5 ms 1144 KB Output is correct
5 Correct 114 ms 10872 KB Output is correct
6 Correct 3 ms 888 KB Output is correct
7 Correct 3 ms 888 KB Output is correct
8 Correct 118 ms 10488 KB Output is correct
9 Correct 118 ms 10488 KB Output is correct
10 Correct 2 ms 760 KB Output is correct
11 Correct 3 ms 888 KB Output is correct
12 Correct 3 ms 888 KB Output is correct
13 Correct 2 ms 888 KB Output is correct
14 Correct 2 ms 888 KB Output is correct
15 Correct 3 ms 888 KB Output is correct
16 Correct 3 ms 888 KB Output is correct
17 Correct 2 ms 888 KB Output is correct
18 Correct 2 ms 888 KB Output is correct
19 Correct 3 ms 760 KB Output is correct
20 Correct 4 ms 1016 KB Output is correct
21 Correct 5 ms 1016 KB Output is correct
22 Correct 5 ms 1144 KB Output is correct
23 Correct 4 ms 1016 KB Output is correct
24 Correct 5 ms 1016 KB Output is correct
25 Correct 5 ms 1012 KB Output is correct
26 Correct 5 ms 1016 KB Output is correct
27 Correct 5 ms 1016 KB Output is correct
28 Correct 4 ms 1016 KB Output is correct
29 Correct 4 ms 1144 KB Output is correct
30 Correct 4 ms 1016 KB Output is correct
31 Correct 115 ms 11128 KB Output is correct
32 Correct 176 ms 10544 KB Output is correct
33 Correct 117 ms 10488 KB Output is correct
34 Correct 123 ms 10872 KB Output is correct
35 Correct 123 ms 11352 KB Output is correct
36 Correct 123 ms 11160 KB Output is correct
37 Correct 118 ms 11256 KB Output is correct
38 Correct 120 ms 11484 KB Output is correct
39 Correct 357 ms 18896 KB Output is correct
40 Correct 122 ms 11376 KB Output is correct
41 Correct 115 ms 10488 KB Output is correct
42 Correct 121 ms 10232 KB Output is correct
43 Correct 115 ms 11220 KB Output is correct
44 Correct 131 ms 11640 KB Output is correct
45 Correct 116 ms 10744 KB Output is correct
46 Correct 116 ms 11384 KB Output is correct
47 Correct 124 ms 11128 KB Output is correct
48 Correct 113 ms 10360 KB Output is correct
49 Correct 111 ms 10488 KB Output is correct
50 Execution timed out 1042 ms 20984 KB Time limit exceeded
51 Halted 0 ms 0 KB -