Submission #885331

#	Time	Username	Problem	Language	Result	Execution time	Memory
885331		asli_bg	은행 (IZhO14_bank)	C++11	0 / 100	1 ms	348 KiB

bank

#include<bits/stdc++.h>
using namespace std;
 
#include <ext/pb_ds/assoc_container.hpp>
 
#define FOR(i,a) for(int i=0;i<(a);i++)
#define FORE(i,a,b) for(int i=(a);i<(b);i++)
typedef long long ll;
#define pb push_back
#define se second
#define fi first
#define all(x) x.begin(),x.end()
 
typedef pair<int,int> pii;
 
typedef vector<int> vi;
typedef vector<pii> vii;
typedef vector<bool> vb;
typedef vector<ll> vll;
 
#define mid (l+r)/2
#define alt cout<<endl
 
const int MAXN=25;
const int INF=1e9;
 
int32_t main(){
 
    ios_base::sync_with_stdio(0);
    cin.tie(0);
 
    //ifstream cin ("movie.in");
    //ofstream cout ("movie.out");
 
    int n,m;
    cin>>n>>m;
 
    vi dp (1<<m);
 
    multiset<int> people;
    vi money(m+1);
 
    FOR(i,n){
        int el;
        cin>>el;
        people.insert(el);
    }
 
    FORE(i,1,m+1){
        cin>>money[i];
    }
 
    vb used(m+1,false);
    int cnt=0;
 
    dp[0]=0;
 
    FOR(i,m){
        dp[1<<i]=money[i+1];
        if(people.count(money[i+1])){
            people.erase(people.find(money[i+1]));
            used[i]=true;
            cnt++;
        }
    }
 
    bool valid;
 
    vi eleman;
 
    
 
        FORE(s,1,(1<<m)){
            if(__builtin_popcount(s)==1) continue;
 
            valid=true;
            FOR(j,m){ //if j.bit is used
                if(s & (1<<j)){
                    if(used[j]){
                        valid=false;
                    }
                    dp[s]+=dp[j+1];
                    eleman.pb(j+1);
                }
            }
 
            if(valid and people.count(dp[s])){
                people.erase(people.find(dp[s]));
                
                for(auto el:eleman){
                    //cout<<el<<' ';
                    used[el]=true;
                }    
                //alt;
                cnt++;
            }
 
            eleman.clear();
 
        }
 
    if(cnt==n) cout<<"YES";
    else cout<<"NO";
 
}

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