제출 #579872

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
579872		karrigan	은행 (IZhO14_bank)	C++14	0 / 100	4 ms	468 KiB

bank

#include <bits/stdc++.h>
using namespace std;
vector<long long>c[1009];
long long a[1009];
long long b[1009];
long long dp[21][1<<20];
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    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];
   for (int i=0;i<(1<<m);i++){
   	long long temp=0;
   	for (int j=0;j<m;j++){
   		if (i>>j&1){
   			temp+=b[j+1];
   		}
   	}
   	if (temp<=1000){
   		c[temp].push_back(i);
   	}
   }
   dp[0][0]=1;
   for (int i=1;i<=n;i++){
   	for (int j=0;j<(1<<m);j++){
   		if (dp[i-1][j]==1){
   			long long temp=(1<<m)-1-j;
   			bool flag=false;
   			for (auto v:c[a[i]]){
   				if ((temp&v)==v){
   					dp[i][j+v]=1;
   					flag=true;
   				}
   			}
   			if (flag==false){
   				cout<<"NO";
				   return 0;
   			}
   		}
   	}
   }
   	for (int j=0;j<(1<<m);j++){
   		if (dp[n][j]==1){
   			cout<<"YES";
   			return 0;
   		}
   	}
   cout<<"NO";
   return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'int main()':
bank.cpp:10:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     freopen("bank.in","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
bank.cpp:11:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     freopen("bank.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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