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답안 #393329

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
393329 2021-04-23T08:00:34 Z asbsfds 은행 (IZhO14_bank) C++14
100 / 100
 642 ms 62020 KB 
#include <bits/stdc++.h>
#define X first
#define Y second

using namespace std;
typedef long long llint;

const int maxn = 30;
const int base = 31337;
const int mod = 1e9+7;
const int inf = 0x3f3f3f3f;
const int logo = 20;
const int off = 1 << logo;
const int treesiz = off << 1;

int n, m;
int a[maxn], b[maxn];
bool dp[maxn][treesiz];
vector< int > v[maxn];

bool solve(int x, int mask) {
	if (x == n) return true;
	if (dp[x][mask]) return false;
	dp[x][mask] = true;
	
	bool out = false;
	for (int i = 0; i < v[x].size(); i++) {
		int tmask = v[x][i];
		if ((mask & tmask) == 0) {
			int nmask = mask | tmask;
			out |= solve(x + 1, nmask);
		}
	}
	return out;
}

int main() {
	scanf("%d%d", &n, &m);
	for (int i = 0; i < n; i++)
		scanf("%d", a+i);
	
	for (int i = 0; i < m; i++) 
		scanf("%d", b+i);
		
	int lim = (1 << m);
	for (int mask = 0; mask < lim; mask++) {
		int sum = 0;
		for (int i = 0; i < m; i++) {
			if (mask & (1 << i)) sum += b[i];
		}
		for (int i = 0; i < n; i++) {
			if (sum == a[i]) v[i].push_back(mask);
		}
	}
	
	memset(dp, false, sizeof dp);
	if (solve(0, 0)) printf("YES\n");
	else printf("NO\n");
	return 0;
}

Compilation message

bank.cpp: In function 'bool solve(int, int)':
bank.cpp:27:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |  for (int i = 0; i < v[x].size(); i++) {
      |                  ~~^~~~~~~~~~~~~
bank.cpp: In function 'int main()':
bank.cpp:38:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   38 |  scanf("%d%d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~
bank.cpp:40:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   40 |   scanf("%d", a+i);
      |   ~~~~~^~~~~~~~~~~
bank.cpp:43:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   43 |   scanf("%d", b+i);
      |   ~~~~~^~~~~~~~~~~

Subtask #1
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 33 ms 61764 KB Output is correct
2 Correct 29 ms 61792 KB Output is correct
3 Correct 27 ms 61840 KB Output is correct
4 Correct 31 ms 61772 KB Output is correct
5 Correct 95 ms 61728 KB Output is correct
6 Correct 28 ms 61772 KB Output is correct
7 Correct 29 ms 61760 KB Output is correct
8 Correct 94 ms 61872 KB Output is correct
9 Correct 95 ms 61732 KB Output is correct

Subtask #2
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 61776 KB Output is correct
2 Correct 29 ms 61820 KB Output is correct
3 Correct 29 ms 61772 KB Output is correct
4 Correct 29 ms 61772 KB Output is correct
5 Correct 28 ms 61808 KB Output is correct
6 Correct 29 ms 61764 KB Output is correct
7 Correct 31 ms 61748 KB Output is correct
8 Correct 28 ms 61760 KB Output is correct
9 Correct 28 ms 61772 KB Output is correct
10 Correct 29 ms 61772 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 61712 KB Output is correct
2 Correct 31 ms 61720 KB Output is correct
3 Correct 30 ms 61736 KB Output is correct
4 Correct 30 ms 61744 KB Output is correct
5 Correct 30 ms 61784 KB Output is correct
6 Correct 30 ms 61780 KB Output is correct
7 Correct 30 ms 61772 KB Output is correct
8 Correct 30 ms 61732 KB Output is correct
9 Correct 30 ms 61836 KB Output is correct
10 Correct 30 ms 61844 KB Output is correct
11 Correct 30 ms 61744 KB Output is correct

Subtask #4
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 33 ms 61764 KB Output is correct
2 Correct 29 ms 61792 KB Output is correct
3 Correct 27 ms 61840 KB Output is correct
4 Correct 31 ms 61772 KB Output is correct
5 Correct 95 ms 61728 KB Output is correct
6 Correct 28 ms 61772 KB Output is correct
7 Correct 29 ms 61760 KB Output is correct
8 Correct 94 ms 61872 KB Output is correct
9 Correct 95 ms 61732 KB Output is correct
10 Correct 28 ms 61776 KB Output is correct
11 Correct 29 ms 61820 KB Output is correct
12 Correct 29 ms 61772 KB Output is correct
13 Correct 29 ms 61772 KB Output is correct
14 Correct 28 ms 61808 KB Output is correct
15 Correct 29 ms 61764 KB Output is correct
16 Correct 31 ms 61748 KB Output is correct
17 Correct 28 ms 61760 KB Output is correct
18 Correct 28 ms 61772 KB Output is correct
19 Correct 29 ms 61772 KB Output is correct
20 Correct 30 ms 61712 KB Output is correct
21 Correct 31 ms 61720 KB Output is correct
22 Correct 30 ms 61736 KB Output is correct
23 Correct 30 ms 61744 KB Output is correct
24 Correct 30 ms 61784 KB Output is correct
25 Correct 30 ms 61780 KB Output is correct
26 Correct 30 ms 61772 KB Output is correct
27 Correct 30 ms 61732 KB Output is correct
28 Correct 30 ms 61836 KB Output is correct
29 Correct 30 ms 61844 KB Output is correct
30 Correct 30 ms 61744 KB Output is correct
31 Correct 97 ms 61764 KB Output is correct
32 Correct 186 ms 62008 KB Output is correct
33 Correct 99 ms 61728 KB Output is correct
34 Correct 104 ms 61720 KB Output is correct
35 Correct 104 ms 61720 KB Output is correct
36 Correct 111 ms 61764 KB Output is correct
37 Correct 93 ms 61764 KB Output is correct
38 Correct 96 ms 61720 KB Output is correct
39 Correct 117 ms 61728 KB Output is correct
40 Correct 102 ms 61740 KB Output is correct
41 Correct 112 ms 61740 KB Output is correct
42 Correct 104 ms 61752 KB Output is correct
43 Correct 103 ms 61764 KB Output is correct
44 Correct 114 ms 61728 KB Output is correct
45 Correct 96 ms 61732 KB Output is correct
46 Correct 97 ms 61732 KB Output is correct
47 Correct 108 ms 61720 KB Output is correct
48 Correct 94 ms 61756 KB Output is correct
49 Correct 92 ms 61764 KB Output is correct
50 Correct 244 ms 61872 KB Output is correct
51 Correct 103 ms 62020 KB Output is correct
52 Correct 110 ms 61872 KB Output is correct
53 Correct 642 ms 61880 KB Output is correct
54 Correct 297 ms 61764 KB Output is correct
55 Correct 250 ms 61844 KB Output is correct
56 Correct 245 ms 61856 KB Output is correct
57 Correct 246 ms 61768 KB Output is correct
58 Correct 245 ms 61764 KB Output is correct