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Submission #873785

# Submission time Handle Problem Language Result Execution time Memory
873785 2023-11-15T18:47:49 Z Irate Bank (IZhO14_bank) C++14
100 / 100
 405 ms 90452 KB 
#include<bits/stdc++.h>
using namespace std;
int n, m;
vector<int>a, b;
vector<vector<int>>lookup;
int dp[20][(1 << 20)];
bool rec(int indx, int mask){
	bool res = 0;
	if(indx == n)return 1;
	if(dp[indx][mask] != -1)return dp[indx][mask];
	for(int &i : lookup[a[indx]]){
		if((mask & i) == i){
			res |= rec(indx + 1, mask ^ i);
		}
	}
	return dp[indx][mask] = res;
}
int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> m;
	a.resize(n);
	b.resize(m);
	lookup.resize(2e4 + 3);
	for(int i = 0;i < n;++i){
		cin >> a[i];
	}
	for(int i = 0;i < m;++i){
		cin >> b[i];
	}
	for(int i = 0;i < (1 << m);++i){
		int sum = 0;
		for(int j = 0;j < m;++j){
			if((i & (1 << j))){
				sum += b[j];
			}
		}
		lookup[sum].push_back(i);
	}
	for(int i = 0;i < 20;++i){
		for(int j = 0;j < (1 << 20);++j){
			dp[i][j] = -1;
		}
	}

	if(rec(0, (1 << m) - 1)){
		cout << "YES";
	}
	else{
		cout << "NO";
	}
}

Compilation message

bank.cpp: In function 'bool rec(int, int)':
bank.cpp:16:24: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   16 |  return dp[indx][mask] = res;
      |         ~~~~~~~~~~~~~~~^~~~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 82780 KB Output is correct
2 Correct 10 ms 82780 KB Output is correct
3 Correct 11 ms 82776 KB Output is correct
4 Correct 12 ms 83036 KB Output is correct
5 Correct 76 ms 89616 KB Output is correct
6 Correct 10 ms 82780 KB Output is correct
7 Correct 12 ms 83292 KB Output is correct
8 Correct 76 ms 88284 KB Output is correct
9 Correct 76 ms 88664 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 82776 KB Output is correct
2 Correct 11 ms 82780 KB Output is correct
3 Correct 11 ms 82780 KB Output is correct
4 Correct 10 ms 82780 KB Output is correct
5 Correct 10 ms 82780 KB Output is correct
6 Correct 10 ms 82780 KB Output is correct
7 Correct 17 ms 82780 KB Output is correct
8 Correct 10 ms 82872 KB Output is correct
9 Correct 10 ms 83036 KB Output is correct
10 Correct 11 ms 82848 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 83032 KB Output is correct
2 Correct 12 ms 82936 KB Output is correct
3 Correct 12 ms 83036 KB Output is correct
4 Correct 11 ms 83036 KB Output is correct
5 Correct 11 ms 83040 KB Output is correct
6 Correct 12 ms 83032 KB Output is correct
7 Correct 12 ms 83036 KB Output is correct
8 Correct 11 ms 83036 KB Output is correct
9 Correct 12 ms 83052 KB Output is correct
10 Correct 11 ms 83036 KB Output is correct
11 Correct 12 ms 83036 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 82780 KB Output is correct
2 Correct 10 ms 82780 KB Output is correct
3 Correct 11 ms 82776 KB Output is correct
4 Correct 12 ms 83036 KB Output is correct
5 Correct 76 ms 89616 KB Output is correct
6 Correct 10 ms 82780 KB Output is correct
7 Correct 12 ms 83292 KB Output is correct
8 Correct 76 ms 88284 KB Output is correct
9 Correct 76 ms 88664 KB Output is correct
10 Correct 10 ms 82776 KB Output is correct
11 Correct 11 ms 82780 KB Output is correct
12 Correct 11 ms 82780 KB Output is correct
13 Correct 10 ms 82780 KB Output is correct
14 Correct 10 ms 82780 KB Output is correct
15 Correct 10 ms 82780 KB Output is correct
16 Correct 17 ms 82780 KB Output is correct
17 Correct 10 ms 82872 KB Output is correct
18 Correct 10 ms 83036 KB Output is correct
19 Correct 11 ms 82848 KB Output is correct
20 Correct 12 ms 83032 KB Output is correct
21 Correct 12 ms 82936 KB Output is correct
22 Correct 12 ms 83036 KB Output is correct
23 Correct 11 ms 83036 KB Output is correct
24 Correct 11 ms 83040 KB Output is correct
25 Correct 12 ms 83032 KB Output is correct
26 Correct 12 ms 83036 KB Output is correct
27 Correct 11 ms 83036 KB Output is correct
28 Correct 12 ms 83052 KB Output is correct
29 Correct 11 ms 83036 KB Output is correct
30 Correct 12 ms 83036 KB Output is correct
31 Correct 77 ms 89436 KB Output is correct
32 Correct 131 ms 88988 KB Output is correct
33 Correct 80 ms 89428 KB Output is correct
34 Correct 78 ms 89428 KB Output is correct
35 Correct 78 ms 90452 KB Output is correct
36 Correct 80 ms 89940 KB Output is correct
37 Correct 78 ms 90152 KB Output is correct
38 Correct 79 ms 90196 KB Output is correct
39 Correct 91 ms 87720 KB Output is correct
40 Correct 77 ms 89684 KB Output is correct
41 Correct 77 ms 89428 KB Output is correct
42 Correct 79 ms 88400 KB Output is correct
43 Correct 78 ms 90200 KB Output is correct
44 Correct 79 ms 90196 KB Output is correct
45 Correct 78 ms 89064 KB Output is correct
46 Correct 78 ms 90224 KB Output is correct
47 Correct 79 ms 89816 KB Output is correct
48 Correct 76 ms 88664 KB Output is correct
49 Correct 76 ms 88660 KB Output is correct
50 Correct 198 ms 87580 KB Output is correct
51 Correct 78 ms 88732 KB Output is correct
52 Correct 79 ms 87628 KB Output is correct
53 Correct 405 ms 87844 KB Output is correct
54 Correct 235 ms 87784 KB Output is correct
55 Correct 208 ms 87580 KB Output is correct
56 Correct 194 ms 87844 KB Output is correct
57 Correct 199 ms 87844 KB Output is correct
58 Correct 196 ms 87844 KB Output is correct