제출 #100487

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
100487		AbduM	은행 (IZhO14_bank)	C++14	0 / 100	2 ms	384 KiB

bank

/// In the name of GOD
/// I love my MOTHER
/// Only GOLD

#include <bits/stdc++.h>

#define sz(s)                   (ll)(s.size())
#define all(x)                  (x.begin(), x.end())
#define pb                      push_back
#define pf                      push_front
#define F                       first
#define S                       second
#define mp                      make_pair
#define ort1                    exit(0);
#define nl                      endl

#define rep(i, l, r)            for(int i = (l); i <= (r); ++i)
#define per(i, l, r)            for(int i = (l); i >= (r); --i)
#define TL                      clock() / (double)CLOCKS_PER_SEC
#define NFS                     ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef double db;
typedef long double ld;


const double pi = acos(-1.0);
const double eps = 1e-9;
const long long inf = 1e12 + 1;
const long long INF = 1e18 + 1;
const int mod = 1e9 + 7;
const int N = 5e5 + 7;

int n, m;
int a[N];
int b[N];
int cnt;
bool bl[N];

inline void rec(int id, int sum, int i) {
    if(sum == a[i]){
        cnt++;
        return;
    }
    if(id > m){
        return;
    }
    if(sum > a[i]){
        return;
    }
    if(!bl[id + 1] && sum + b[id + 1] <= a[i]) bl[id + 1] = 1, rec(id + 1, sum + b[id + 1], i);
    rec(id + 1, sum, i);
}

int main(){
    NFS
    #ifdef ioi
        freopen("in.txt", "r", stdin);
    #else
        //freopen("bank.in", "r", stdin);
        //freopen("bank.out", "w", stdout);
    #endif

    cin >> n >> m;
    rep(i, 1, n){
        cin >> a[i];
    }

    rep(i, 1, m){
        cin >> b[i];
    }

    rep(i, 1, n){
        rec(1, 0, i);
    }

    if(cnt == n) cout << "YES";
    else cout << "NO";

    ort1
}

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