#include <iostream>
#include <vector>
using std::cout;
using std::endl;
using std::vector;
int main() {
int people_num;
int note_num;
std::cin >> people_num >> note_num;
vector<int> people(people_num);
vector<int> banknotes(note_num);
for (int &p : people) { std::cin >> p; }
for (int &b : banknotes) { std::cin >> b; }
vector<int> leftover(1 << note_num, -1);
vector<int> people_covered(1 << note_num, -1);
leftover[0] = 0;
people_covered[0] = 0;
for (int s = 0; s < (1 << note_num); s++) {
for (int last = 0; last < note_num; last++) {
if ((s & (1 << last)) == 0) { continue; }
int prev = s & ~(1 << last);
if (people_covered[prev] == -1) { continue; }
int new_amt = leftover[prev] + banknotes[last];
// the salary of the current person we're going to try to pay
int curr_target = people[people_covered[prev]];
// if it's still not enough, just increment the leftover pile
if (new_amt < curr_target) {
people_covered[s] = people_covered[prev];
leftover[s] = new_amt;
}
/*
* or it's exactly right, in which case reset the leftover count
* and increment the covered amount
*/
else if (new_amt == curr_target) {
people_covered[s] = people_covered[prev] + 1;
leftover[s] = 0;
}
}
// we've covered all the people!
if (people_covered[s] == people_num) {
cout << "YES" << endl;
return 0;
}
}
cout << "NO" << endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
70 ms |
8540 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
3 ms |
8540 KB |
Output is correct |
9 |
Correct |
72 ms |
8540 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
2 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
70 ms |
8540 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
3 ms |
8540 KB |
Output is correct |
9 |
Correct |
72 ms |
8540 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
2 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
75 ms |
8540 KB |
Output is correct |
32 |
Correct |
81 ms |
8536 KB |
Output is correct |
33 |
Correct |
68 ms |
8636 KB |
Output is correct |
34 |
Correct |
68 ms |
8540 KB |
Output is correct |
35 |
Correct |
65 ms |
8536 KB |
Output is correct |
36 |
Correct |
77 ms |
8540 KB |
Output is correct |
37 |
Correct |
78 ms |
8540 KB |
Output is correct |
38 |
Correct |
77 ms |
8536 KB |
Output is correct |
39 |
Correct |
3 ms |
8540 KB |
Output is correct |
40 |
Correct |
69 ms |
8640 KB |
Output is correct |
41 |
Correct |
63 ms |
8536 KB |
Output is correct |
42 |
Correct |
89 ms |
8540 KB |
Output is correct |
43 |
Correct |
66 ms |
8640 KB |
Output is correct |
44 |
Correct |
66 ms |
8536 KB |
Output is correct |
45 |
Correct |
3 ms |
8536 KB |
Output is correct |
46 |
Correct |
73 ms |
8640 KB |
Output is correct |
47 |
Correct |
68 ms |
8540 KB |
Output is correct |
48 |
Correct |
2 ms |
8540 KB |
Output is correct |
49 |
Correct |
83 ms |
8628 KB |
Output is correct |
50 |
Correct |
70 ms |
8536 KB |
Output is correct |
51 |
Correct |
61 ms |
8540 KB |
Output is correct |
52 |
Correct |
59 ms |
8540 KB |
Output is correct |
53 |
Correct |
78 ms |
8540 KB |
Output is correct |
54 |
Correct |
70 ms |
8536 KB |
Output is correct |
55 |
Correct |
68 ms |
8536 KB |
Output is correct |
56 |
Correct |
74 ms |
8784 KB |
Output is correct |
57 |
Correct |
68 ms |
8540 KB |
Output is correct |
58 |
Correct |
66 ms |
8540 KB |
Output is correct |