Submission #676325

#	Time	Username	Problem	Language	Result	Execution time	Memory
676325		murad_2005	Bank (IZhO14_bank)	C++14	19 / 100	134 ms	118212 KiB

bank

#include<bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define piii pair<pii, int>
#define pllll pair<ll, ll>
#define pb push_back
#define all(v) v.begin(), v.end()
#define size(v) v.size()
#define INF 2e18
#define f first
#define s second

using namespace std;

const int up = 20;

int n, m;
vector<int>costMask[20005];
vector<vector<int>>dp((1 << up), vector<int>(n + 1));
vector<int>a, b;

int Bank(int mask, int i){
    if(i == 0) return 1;
    if(dp[mask][i] != -1) return dp[mask][i];

    for(int Submask : costMask[a[i]]){
        if((mask & Submask) == Submask){
            if(Bank(mask ^ Submask, i - 1)){
                return dp[mask][i] = 1;
            }
        }
    }
    return dp[mask][i] = 0;
}

void solve(){

    cin >> n >> m;
    a.resize(n + 1), b.resize(m + 1);
    for(int i = 1; i <= n; ++i){
        cin >> a[i];
    }for(int i = 1; i <= m; ++i){
        cin >> b[i];
    }
    for(int mask = 0; mask < (1 << m); ++mask){
        int Total = 0;
        for(int i = 0; i < m; ++i){
            if(mask & (1 << i)){
                Total += b[i + 1];
            }
        }
        costMask[Total].pb(mask);
    }
    for(int mask = 0; mask < (1 << m); mask++){
        for(int i = 1; i <= n; ++i){
            dp[mask][i] = -1;
        }
    }

    if(Bank((1 << m) - 1, n)) cout << "YES\n";
    else cout << "NO\n";
}

int main(){
    int t;
    t = 1;
    //cin >> t;
    while(t--){
        solve();
    }
    return 0;
}

• Subtask 1: 19 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29