Submission #883236

#	Time	Username	Problem	Language	Result	Execution time	Memory
883236		cemil1234	Bank (IZhO14_bank)	C++17	100 / 100	109 ms	16876 KiB

bank

#include<bits/stdc++.h>
using namespace std;
#define ull unsigned long long
void solve(){
    long long n,m,x;
    cin>>n>>m;
    vector<long long>pp(n),bn(m);
    for(long long i = 0;i<n;i++){
        cin>>pp[i];
    }
    for(long long i = 0;i<m;i++){
        cin>>bn[i];
    }
    vector<long long>cnt(1<<m,-1),left(1<<m,-1);
    cnt[0] = 0;
    left[0] = 0;
    for(long long i = 0;i<(1<<m);i++){
        for(long long j = 0;j<m;j++){
            if((i&(1<<j)) == 0){
                continue;
            }
            long long pre = i^(1<<j);
            if(cnt[pre] == -1){
                continue;
            }
            long long nleft = left[pre]+bn[j];
            if(nleft == pp[cnt[pre]]){
                left[i] = 0;
                cnt[i] = cnt[pre]+1;
            }
            else if(nleft<pp[cnt[pre]]){
                left[i] = nleft;
                cnt[i] = cnt[pre];
            }
        }
        if(cnt[i] == n){
            cout<<"YES\n";
            return;
        }
    }
    cout<<"NO\n";
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
    //cin>>t;
    while(t--){
        solve();
    }
}

Compilation message (stderr)

bank.cpp: In function 'void solve()':
bank.cpp:5:19: warning: unused variable 'x' [-Wunused-variable]
    5 |     long long n,m,x;
      |                   ^

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