Submission #1088619

#	Time	Username	Problem	Language	Result	Execution time	Memory
1088619		vjudge1	Bank (IZhO14_bank)	C++17	71 / 100	1055 ms	82520 KiB

bank

#include <bits/stdc++.h>

using namespace std;
using pii = pair<int,int>;

const int maxn = 20,inf = 1e9;

int n,m,dp[maxn][1 << maxn];
vector<int> s,c;

bool solve(int pos,int mask){
    
    if(pos == n) return 1;
    if(dp[pos][mask] != -1) return dp[pos][mask];
    
    dp[pos][mask] = 0;
    
    for(int i = 1;i < (1 << m);i++){
        int soma = 0;
        for(int j = 0;j < m;j++)
            if(i & (1 << j) && !(mask & (1 << j)))
                soma += c[j];
        if(soma == s[pos]) dp[pos][mask] |= solve(pos + 1,mask | i);
    }
    
    return dp[pos][mask];
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    
    cin >> n >> m;
    
    s.resize(n);
    c.resize(m);
    
    for(int &i : s) cin >> i;
    
    for(int &i : c) cin >> i;
    
    memset(dp,-1,sizeof dp);
    
    cout << (solve(0,0) ? "YES" : "NO");

    return 0;
}

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