Submission #1262391

#	Time	Username	Problem	Language	Result	Execution time	Memory
1262391		ghgcdc	Bank (IZhO14_bank)	C++17	100 / 100	113 ms	8652 KiB

bank

#include<bits/stdc++.h>
using namespace std;
int a[21],b[21];
pair<int,int> dp[1<<21];
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int n, m; cin>>n>>m;
    for(int i = 0; i < n; i++) cin >> a[i];
    for(int i = 0; i < m; i++) cin >> b[i];
    for(int s = 0; s <(1<<m); s++){
        for(int i = 0; i < m; i++){
            if(s &(1<<i)) continue;
            auto [id, x] = dp[s];
            int j = s |(1<<i);
            if(id == n) return cout<<"YES"<<'\n',0;
            pair<int, int> cur;
            if(x + b[i] == a[id]){
                cur ={id + 1, 0};
                if(id + 1 == n)  return cout<<"YES"<<'\n',0;
            }
            else if(x + b[i] < a[id]) cur ={id, b[i] + x};
            dp[j] = max(dp[j], cur);
        }
    }
    cout<<"NO"<<'\n';
    return 0;
}

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