Submission #1306408

#	Time	Username	Problem	Language	Result	Execution time	Memory
1306408		hectormedrano	Bank (IZhO14_bank)	C++20	0 / 100	1 ms	580 KiB

bank

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

ll N, M;
vector<ll> a, b;
map<vector<ll>, bool> vis;
bool ans = false;

void BT(vector<ll> v, ll mx){
    if(vis[v]){return;}
    vis[v] = true;
    if(v.size() == N){
        vector<ll> s(mx, 0);
        for(ll i=0;i<N;i++){
            s[v[i]] += b[i];
        }
        sort(s.begin(), s.end());
        if(mx > M){return;}
        for(ll i=mx-1;i>=0;i--){
            if(a[M-(mx-i)] != s[i]){return;}
        }
        ans = true;
    } else {
        for(ll i=0;i<mx;i++){
            v.push_back(i);
            BT(v, mx);
            v.pop_back();
        }
        v.push_back(mx);
        BT(v, mx+1);
        v.pop_back();
    }
}

int main() {
    cin>>N>>M;
    a.resize(N);
    b.resize(M);
    for(ll i=0;i<N;i++){cin>>a[i];}
    for(ll i=0;i<M;i++){cin>>b[i];}
    sort(a.begin(), a.end());
    BT({}, 0);
    if(ans){cout<<"YES";}
    else{cout<<"NO";}
}

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