oj.uz

Submission #90469

# Submission time Handle Problem Language Result Execution time Memory
90469 2018-12-21T18:23:44 Z xiaowuc1 Bank (IZhO14_bank) C++14
100 / 100
 104 ms 6376 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef vector<vector<int>> matrix;

int n, m;
int val[20];
int bases[20];
vector<int> masks[1001];
void solve() {
  cin >> n >> m;
  {
    vector<int> v, w;
    v.resize(n);
    for(int i = 0; i < n; i++) {
      cin >> v[i];
    }
    w.resize(m);
    for(int i = 0; i < m; i++) {
      cin >> w[i];
    }
    sort(v.begin(), v.end());
    sort(w.begin(), w.end());
    int a = 0;
    int b = 0;
    while(a < v.size() && b < w.size()) {
      if(v[a] == w[b]) {
        v.erase(v.begin() + a);
        w.erase(w.begin() + b);
      }
      else if(v[a] < w[b]) a++;
      else b++;
    }
    n = v.size();
    m = w.size();
    for(int i = 0; i < n; i++) {
      val[i] = v[i];
    }
    for(int i = 0; i < m; i++) {
      bases[i] = w[i];
    }
  }
  sort(val, val+n);
  reverse(val, val+n);
  for(int mask = 1; mask < (1<<m); mask++) {
    int v = 0;
    int t = mask;
    while(v <= 1000 && t) {
      v += bases[__builtin_ctz(t)];
      t &= t-1;
    }
    if(v <= 1000) masks[v].push_back(mask);
  }
  unordered_set<int> ret;
  ret.insert(0);
  for(int i = 0; i < n; i++) {
    unordered_set<int> nret;
    for(int out2: ret) {
      for(int out: masks[val[i]]) {
        if(out&out2) continue;
        if(__builtin_popcount(out | out2) + 2*(n-i-1) > m) continue;
        nret.insert(out | out2);
      }
    }
    ret = nret;
  }
  if(ret.empty()) cout << "NO\n";
  else cout << "YES\n";
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL); cout.tie(NULL); cerr.tie(NULL);
  solve();
}

Compilation message

bank.cpp: In function 'void solve()':
bank.cpp:29:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(a < v.size() && b < w.size()) {
           ~~^~~~~~~~~~
bank.cpp:29:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(a < v.size() && b < w.size()) {
                           ~~^~~~~~~~~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 444 KB Output is correct
3 Correct 2 ms 444 KB Output is correct
4 Correct 3 ms 572 KB Output is correct
5 Correct 28 ms 6368 KB Output is correct
6 Correct 2 ms 6368 KB Output is correct
7 Correct 2 ms 6368 KB Output is correct
8 Correct 27 ms 6372 KB Output is correct
9 Correct 26 ms 6372 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6372 KB Output is correct
2 Correct 2 ms 6372 KB Output is correct
3 Correct 2 ms 6372 KB Output is correct
4 Correct 2 ms 6372 KB Output is correct
5 Correct 2 ms 6372 KB Output is correct
6 Correct 2 ms 6372 KB Output is correct
7 Correct 2 ms 6372 KB Output is correct
8 Correct 2 ms 6372 KB Output is correct
9 Correct 2 ms 6372 KB Output is correct
10 Correct 2 ms 6372 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6372 KB Output is correct
2 Correct 2 ms 6372 KB Output is correct
3 Correct 2 ms 6372 KB Output is correct
4 Correct 2 ms 6372 KB Output is correct
5 Correct 2 ms 6372 KB Output is correct
6 Correct 2 ms 6372 KB Output is correct
7 Correct 2 ms 6372 KB Output is correct
8 Correct 2 ms 6372 KB Output is correct
9 Correct 2 ms 6372 KB Output is correct
10 Correct 2 ms 6372 KB Output is correct
11 Correct 2 ms 6372 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 444 KB Output is correct
3 Correct 2 ms 444 KB Output is correct
4 Correct 3 ms 572 KB Output is correct
5 Correct 28 ms 6368 KB Output is correct
6 Correct 2 ms 6368 KB Output is correct
7 Correct 2 ms 6368 KB Output is correct
8 Correct 27 ms 6372 KB Output is correct
9 Correct 26 ms 6372 KB Output is correct
10 Correct 2 ms 6372 KB Output is correct
11 Correct 2 ms 6372 KB Output is correct
12 Correct 2 ms 6372 KB Output is correct
13 Correct 2 ms 6372 KB Output is correct
14 Correct 2 ms 6372 KB Output is correct
15 Correct 2 ms 6372 KB Output is correct
16 Correct 2 ms 6372 KB Output is correct
17 Correct 2 ms 6372 KB Output is correct
18 Correct 2 ms 6372 KB Output is correct
19 Correct 2 ms 6372 KB Output is correct
20 Correct 2 ms 6372 KB Output is correct
21 Correct 2 ms 6372 KB Output is correct
22 Correct 2 ms 6372 KB Output is correct
23 Correct 2 ms 6372 KB Output is correct
24 Correct 2 ms 6372 KB Output is correct
25 Correct 2 ms 6372 KB Output is correct
26 Correct 2 ms 6372 KB Output is correct
27 Correct 2 ms 6372 KB Output is correct
28 Correct 2 ms 6372 KB Output is correct
29 Correct 2 ms 6372 KB Output is correct
30 Correct 2 ms 6372 KB Output is correct
31 Correct 25 ms 6372 KB Output is correct
32 Correct 104 ms 6372 KB Output is correct
33 Correct 16 ms 6372 KB Output is correct
34 Correct 5 ms 6372 KB Output is correct
35 Correct 4 ms 6372 KB Output is correct
36 Correct 2 ms 6372 KB Output is correct
37 Correct 14 ms 6372 KB Output is correct
38 Correct 14 ms 6372 KB Output is correct
39 Correct 2 ms 6372 KB Output is correct
40 Correct 19 ms 6372 KB Output is correct
41 Correct 19 ms 6372 KB Output is correct
42 Correct 31 ms 6372 KB Output is correct
43 Correct 20 ms 6372 KB Output is correct
44 Correct 2 ms 6372 KB Output is correct
45 Correct 28 ms 6376 KB Output is correct
46 Correct 22 ms 6376 KB Output is correct
47 Correct 2 ms 6376 KB Output is correct
48 Correct 26 ms 6376 KB Output is correct
49 Correct 26 ms 6376 KB Output is correct
50 Correct 2 ms 6376 KB Output is correct
51 Correct 14 ms 6376 KB Output is correct
52 Correct 27 ms 6376 KB Output is correct
53 Correct 31 ms 6376 KB Output is correct
54 Correct 2 ms 6376 KB Output is correct
55 Correct 2 ms 6376 KB Output is correct
56 Correct 2 ms 6376 KB Output is correct
57 Correct 2 ms 6376 KB Output is correct
58 Correct 2 ms 6376 KB Output is correct