Submission #704018

#	Time	Username	Problem	Language	Result	Execution time	Memory
704018		vjudge1	Bank (IZhO14_bank)	C++17	71 / 100	1081 ms	6732 KiB

bank

// Problem: Elevator Rides

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

#define ff first
#define ss second
#define ll long long
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define ones(x) __builtin_popcount(x)
#define remove(v)  v.erase(unique(all(v)), v.end())
#define rep(i, a, b) for(int i = a; i <= b; i++)
#define per(i, a, b) for(int i = a; i >= b; i--)

#ifdef local
#include "C:\debug.h"
#else
#define dbg(x...) 42
#endif

const int N = 2e6 + 2 ;

int n , m , a[21] , b[21] ;
vector<int> f[1001] ;

void go(int i , int mask) {
    if(i > n) {
        cout << "YES\n" ;
        exit(0) ;
    }
    for(auto& x : f[a[i]]) {
        bool ok = 1 ;
        rep(i , 0 , 32) {
            if((mask >> i & 1) == 1 && (x >> i & 1) == 1) {
                ok = 0 ;
                break ;
            }
        }
        if(ok) {
            go(i + 1 , (mask | x)) ;
        }
    }
}

void solve(){
    cin >> n >> m ;
    rep(i , 1 , n) cin >> a[i] ;
    rep(i , 1 , m) cin >> b[i] ;
    rep(i , 1 , (1 << m) - 1) {
        int cur = 0 ;
        rep(mask , 0 , m - 1) {
            if((i >> mask) & 1) {
                cur += b[mask + 1] ;
            }
        }
        if(cur <= 1000) {
            f[cur].pb(i) ;
        }
    }
    go(1 , 0) ;
    cout << "NO" ;
}

int main () {
	ios::sync_with_stdio(false) ;
	cin.tie(0) ;
	int test = 1 ;
	// cin >> test ; 
	for(int i = 1 ; i <= test ; i++) {
		solve() ;
	}
}

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