Submission #885211

#	Time	Username	Problem	Language	Result	Execution time	Memory
885211		parlimoos	Bank (IZhO14_bank)	C++14	100 / 100	82 ms	8792 KiB

bank

//Be Name KHODA
#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
#define pb push_back
#define pp pop_back
#define cl clear
#define bg begin
#define lb lower_bound
#define ub upper_bound
#define arr(x) array<int , x>
#define endl '\n'

int n , m;
vector<int> a , b;
int dp[(1 << 20)][2];

void f(){
    dp[0][0] = 0 , dp[0][1] = 0;
    for(int msk = 0 ; msk < (1 << m) ; msk++){
        for(int j = 0 ; j < m ; j++){
            if((msk >> j) & 1){
                int lst = dp[msk ^ (1 << j)][0];
                int d = dp[msk ^ (1 << j)][1] + b[j];
                if(d < a[lst]){
                    dp[msk][0] = lst;
                    dp[msk][1] = d;
                }else if(d == a[lst]){
                    dp[msk][0] = lst + 1;
                    dp[msk][1] = 0;
                }
            }
        }
        if(dp[msk][0] == n){
            cout << "YES";
            exit(0);
        }
    }
    cout << "NO";
}

int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);

    cin >> n >> m;
    for(int i = 0 ; i < n ; i++){
        int d;
        cin >> d;
        a.pb(d);
    }
    for(int i = 0 ; i < m ; i++){
        int d;
        cin >> d;
        b.pb(d);
    }
    for(int msk = 0 ; msk < (1 << m) ; msk++){
        dp[msk][0] = -1;
        dp[msk][1] = 0;
    }
    f();
}

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