Submission #1073085

#	Time	Username	Problem	Language	Result	Execution time	Memory
1073085		vjudge1	Bank (IZhO14_bank)	C++17	0 / 100	2 ms	348 KiB

bank

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define ff first
#define ss second
#define pb push_back

const ll MOD=1000000007;
bool dp[20][(1<<20)];

void solve(){
	int n,m;
	cin>>n>>m;
	int a[n],pr[n],b[m];
	for(int i=0; i<n; i++){
		cin>>a[i];
		if(i==0) pr[i]=a[i];
		else pr[i]=pr[i-1]+a[i];
	}
	for(int i=0; i<m; i++) cin>>b[i];
	sort(b,b+m);
	vector<int>ans;
	ans.pb(0);
	for(int i=0; i<n; i++){
		vector<int>cur;
		for(int j=1; j<(1<<m); j++){
			int sum=0;
			for(int k=0; k<m; k++) if((1<<k)&j) sum+=b[k];
			if(sum>pr[i]) break;
			if(sum==pr[i]){
				if(i==0) cur.pb(j);
				else for(int k=0; k<ans.size(); k++) if(ans[k]&j==ans[k]) cur.pb(j);
			}
		}
		ans=cur;
	}
	if(ans.size()>0) cout<<"YES";
	else cout<<"NO";
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int t=1;
//	cin>>t;
	for(int _=0; _<t; _++){
//		cout<<"Case "<<_+1<<":\n";
		solve();
	}
	return 0;
}

//080129552180

Compilation message (stderr)

bank.cpp: In function 'void solve()':
bank.cpp:33:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     else for(int k=0; k<ans.size(); k++) if(ans[k]&j==ans[k]) cur.pb(j);
      |                       ~^~~~~~~~~~~
bank.cpp:33:53: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   33 |     else for(int k=0; k<ans.size(); k++) if(ans[k]&j==ans[k]) cur.pb(j);

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