Submission #676157

#	Time	Username	Problem	Language	Result	Execution time	Memory
676157		hxy123123	Bank (IZhO14_bank)	C++14	100 / 100	109 ms	8532 KiB

bank

#include<bits/stdc++.h>
using namespace std;
const int N=(1<<20);
int dp[N],l[N];
int n,m,a[21],b[21];
void solve(){
	scanf("%d%d",&n,&m);
	for(int i=1;i<=n;i++) scanf("%d",&a[i]);
	for(int i=0;i<m;i++)  scanf("%d",&b[i]);
	memset(dp,-1,sizeof dp);
    memset(l,-1,sizeof l);
    dp[0]=0;
    l[0]=0;
	for(int i=0;i<(1<<m);i++){
		for(int j=0;j<m;j++){
			if((i&(1<<j))==0) continue;
			int k=i-(1<<j);

			if(dp[k]==-1) continue;
			if(l[k]+b[j]<a[dp[k]+1]){
				dp[i]=max(dp[k],dp[i]);
				l[i]=l[k]+b[j];
			}
			else if(l[k]+b[j]==a[dp[k]+1]){
				l[i]=0;
				dp[i]=max(dp[i],dp[k]+1);
			}
			if(dp[i]==n){
				cout<<"YES"<<endl;
				return ;
			}
		}
	}
	cout<<"NO"<<endl;
	return ;
}
int main(){
	solve();
}

Compilation message (stderr)

bank.cpp: In function 'void solve()':
bank.cpp:7:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |  scanf("%d%d",&n,&m);
      |  ~~~~~^~~~~~~~~~~~~~
bank.cpp:8:29: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |  for(int i=1;i<=n;i++) scanf("%d",&a[i]);
      |                        ~~~~~^~~~~~~~~~~~
bank.cpp:9:29: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |  for(int i=0;i<m;i++)  scanf("%d",&b[i]);
      |                        ~~~~~^~~~~~~~~~~~

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