Submission #848018

#	Time	Username	Problem	Language	Result	Execution time	Memory
848018		_hbk06	Bank (IZhO14_bank)	C++14	100 / 100	106 ms	16992 KiB

bank

#include<bits/stdc++.h>

using namespace std;

const int mxN = 5e5 + 5;
#define int long long
#define MASK(n) (1 << (n))
#define BIT(mask,x) ((mask >> x) & 1)
const long long infll = 1e18 + 69;

int n;
int m;
int a[20];
int b[20];
int s[MASK(20)];
pair<int,int> dp[MASK(20)];

signed main () {
//    freopen("bank.in","r",stdin);
//    freopen("bank.out","w",stdout);
    cin >> n >> m;
    for (int i = 0; i < n; i++) cin >> a[i];
    for (int i = 0; i < m; i++) cin >> b[i];
    dp[0] = make_pair(0,0);
    for (int mask = 0; mask < MASK(m); mask++)
        for (int i = 0; i < m; i++) {
            if(BIT(mask,i)) continue;
            pair<int,int> new_state;
            if(a[dp[mask].first] == dp[mask].second + b[i]) new_state = make_pair(dp[mask].first + 1,0);
            else new_state = make_pair(dp[mask].first,dp[mask].second + b[i]);
            dp[mask ^ MASK(i)] = max(dp[mask ^ MASK(i)],new_state);
        }
    bool kt = false;
    for (int mask = 0; mask < MASK(m); mask++) if(dp[mask].first == n) {kt = true;break;}
    if(kt) cout << "YES" << "\n";
    else cout << "NO" << "\n";
}

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