Submission #1098148

#	Time	Username	Problem	Language	Result	Execution time	Memory
1098148		vjudge1	Bank (IZhO14_bank)	C++17	0 / 100	3 ms	456 KiB

bank

#include<bits/stdc++.h>
#define pb push_back
#define int long long
#define S second
#define F first
#define ahah ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;

const int N=1e6+7;
const int MOD=1e9+7;

int a[N],b[N];
bool used[N];

signed main() {
	ahah
	freopen("bank.in" , "r" , stdin);
	freopen("bank.out" , "w" , stdout);
	int n,m;
	cin >> n >> m;
	for(int i = 1 ; i <= n ; i++){
		cin >> a[i];
	}
	for(int i = 1 ; i <= m ; i++){
		cin >> b[i];
	}
	sort(a+1,a+1+n);
	sort(b+1,b+1+m);
	for(int uk = 1 ; uk <= n ; uk++){
		bool ok=false;
		for(int i = 0 ; i < (1 << m) ; i++){
			vector<int>vc;
			for(int j = 0 ; j < m ; j++){
				if(i&(1 << j) and !used[j+1]){
					vc.pb(j+1);
				}
			}
			int cnt=0;
			for(int j = 0 ; j < vc.size() ; j++){
				cnt+=b[vc[j]];
			}
			if(cnt == a[uk]){
				for(int j = 0 ; j < vc.size() ; j++){
					used[vc[j]]=true;
				}
				ok =true;
				break;
			}
		}
		if(!ok){
			cout << "NO";
			return 0;
		}
	}
	cout << "YES";
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:39:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |    for(int j = 0 ; j < vc.size() ; j++){
      |                    ~~^~~~~~~~~~~
bank.cpp:43:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |     for(int j = 0 ; j < vc.size() ; j++){
      |                     ~~^~~~~~~~~~~
bank.cpp:17:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |  freopen("bank.in" , "r" , stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:18:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |  freopen("bank.out" , "w" , stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29