Submission #445174

#	Time	Username	Problem	Language	Result	Execution time	Memory
445174		JovanB	Bank (IZhO14_bank)	C++17	100 / 100	108 ms	8576 KiB

bank

#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef long double ld;
 
pair <int, int> dp[2000005];
int a[25];
int b[25];
 
int main(){
    ios_base::sync_with_stdio(false), cin.tie(0);
    cout.precision(10);
    cout << fixed;

    int n, m;
    cin >> n >> m;
    for(int i=1; i<=n; i++){
      cin >> a[i];
    }
    for(int j=0; j<m; j++){
      cin >> b[j];
    }
    for(int mask=0; mask<(1<<m); mask++){
      if(dp[mask].first == 0 && dp[mask].second == 0 && mask > 0) continue;
      for(int i=0; i<m; i++){
        if((1<<i)&mask) continue;
        int k = a[dp[mask].first+1] - dp[mask].second;
        if(k < b[i]) continue;
        else if(k == b[i]) dp[mask|(1<<i)] = {dp[mask].first+1, 0};
        else dp[mask|(1<<i)] = {dp[mask].first, dp[mask].second+b[i]};
      }
    }
    for(int i=0; i<(1<<m); i++){
      if(dp[i].first == n){
        cout << "YES\n";
        return 0;
      }
    }
    cout << "NO\n";
    return 0;
}

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