oj.uz

Submission #362708

# Submission time Handle Problem Language Result Execution time Memory
362708 2021-02-04T07:32:07 Z wind_reaper Bank (IZhO14_bank) C++17
100 / 100
 639 ms 90468 KB 
#include <bits/stdc++.h>

using namespace std;
const int MXN = 20; 
const int MX = 1000; 
vector<int> pos[MXN*MX+1];
vector<vector<int>> dp(MXN, vector<int>(1 << MXN, -1));
int n, m;
vector<int> a;
bool solve(int idx, int mask){
	if(idx == n) return 1; 
	if(dp[idx][mask] != -1){
		return dp[idx][mask];
	} 
	bool ans = 0; 
	for(int nmask : pos[a[idx]]){
		if((nmask & mask) == 0)
			ans = ans | solve(idx+1, mask|nmask);
	}

	return dp[idx][mask] = ans;
}
int32_t main(){
	ios_base::sync_with_stdio(false); 
	cin.tie(NULL); 
	
	//dp[i][mask] -> is it possible to cover all employees till i using mask notes

	cin >> n >> m; 
	a.resize(n);

	for(int i = 0; i < n; i++)
		cin >> a[i];

	vector<int> b(m); 
	for(int i = 0; i < m; i++)
		cin >> b[i];

	for(int mask = 0; mask < (1 << m); mask++){
		int sum = 0; 
		for(int i = 0; i < m; i++)
			if(mask & (1 << i))
				sum += b[i];

		pos[sum].push_back(mask);
	}

	cout << (solve(0, 0) ? "YES" : "NO") << '\n';
	return 0; 
}

Compilation message

bank.cpp: In function 'bool solve(int, int)':
bank.cpp:21:23: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   21 |  return dp[idx][mask] = ans;

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 87020 KB Output is correct
2 Correct 50 ms 87020 KB Output is correct
3 Correct 50 ms 87020 KB Output is correct
4 Correct 54 ms 87020 KB Output is correct
5 Correct 119 ms 89316 KB Output is correct
6 Correct 49 ms 87020 KB Output is correct
7 Correct 53 ms 87020 KB Output is correct
8 Correct 128 ms 88420 KB Output is correct
9 Correct 119 ms 88804 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 87020 KB Output is correct
2 Correct 53 ms 87148 KB Output is correct
3 Correct 59 ms 87020 KB Output is correct
4 Correct 50 ms 87148 KB Output is correct
5 Correct 50 ms 87020 KB Output is correct
6 Correct 51 ms 87020 KB Output is correct
7 Correct 50 ms 87020 KB Output is correct
8 Correct 50 ms 87020 KB Output is correct
9 Correct 52 ms 87020 KB Output is correct
10 Correct 52 ms 87020 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 87020 KB Output is correct
2 Correct 54 ms 87020 KB Output is correct
3 Correct 52 ms 87040 KB Output is correct
4 Correct 57 ms 87020 KB Output is correct
5 Correct 51 ms 87276 KB Output is correct
6 Correct 52 ms 87020 KB Output is correct
7 Correct 52 ms 87020 KB Output is correct
8 Correct 51 ms 87020 KB Output is correct
9 Correct 52 ms 87172 KB Output is correct
10 Correct 52 ms 87020 KB Output is correct
11 Correct 51 ms 87020 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 87020 KB Output is correct
2 Correct 50 ms 87020 KB Output is correct
3 Correct 50 ms 87020 KB Output is correct
4 Correct 54 ms 87020 KB Output is correct
5 Correct 119 ms 89316 KB Output is correct
6 Correct 49 ms 87020 KB Output is correct
7 Correct 53 ms 87020 KB Output is correct
8 Correct 128 ms 88420 KB Output is correct
9 Correct 119 ms 88804 KB Output is correct
10 Correct 51 ms 87020 KB Output is correct
11 Correct 53 ms 87148 KB Output is correct
12 Correct 59 ms 87020 KB Output is correct
13 Correct 50 ms 87148 KB Output is correct
14 Correct 50 ms 87020 KB Output is correct
15 Correct 51 ms 87020 KB Output is correct
16 Correct 50 ms 87020 KB Output is correct
17 Correct 50 ms 87020 KB Output is correct
18 Correct 52 ms 87020 KB Output is correct
19 Correct 52 ms 87020 KB Output is correct
20 Correct 51 ms 87020 KB Output is correct
21 Correct 54 ms 87020 KB Output is correct
22 Correct 52 ms 87040 KB Output is correct
23 Correct 57 ms 87020 KB Output is correct
24 Correct 51 ms 87276 KB Output is correct
25 Correct 52 ms 87020 KB Output is correct
26 Correct 52 ms 87020 KB Output is correct
27 Correct 51 ms 87020 KB Output is correct
28 Correct 52 ms 87172 KB Output is correct
29 Correct 52 ms 87020 KB Output is correct
30 Correct 51 ms 87020 KB Output is correct
31 Correct 143 ms 89444 KB Output is correct
32 Correct 169 ms 88804 KB Output is correct
33 Correct 127 ms 89188 KB Output is correct
34 Correct 140 ms 89572 KB Output is correct
35 Correct 134 ms 90468 KB Output is correct
36 Correct 127 ms 89956 KB Output is correct
37 Correct 130 ms 90340 KB Output is correct
38 Correct 146 ms 90084 KB Output is correct
39 Correct 143 ms 89060 KB Output is correct
40 Correct 126 ms 89956 KB Output is correct
41 Correct 129 ms 89536 KB Output is correct
42 Correct 122 ms 88548 KB Output is correct
43 Correct 124 ms 90340 KB Output is correct
44 Correct 131 ms 90468 KB Output is correct
45 Correct 122 ms 89188 KB Output is correct
46 Correct 122 ms 90340 KB Output is correct
47 Correct 131 ms 89828 KB Output is correct
48 Correct 123 ms 88676 KB Output is correct
49 Correct 119 ms 88804 KB Output is correct
50 Correct 346 ms 88932 KB Output is correct
51 Correct 120 ms 88932 KB Output is correct
52 Correct 125 ms 88548 KB Output is correct
53 Correct 639 ms 88804 KB Output is correct
54 Correct 407 ms 88932 KB Output is correct
55 Correct 362 ms 88936 KB Output is correct
56 Correct 378 ms 90084 KB Output is correct
57 Correct 408 ms 90212 KB Output is correct
58 Correct 385 ms 90212 KB Output is correct