Submission #1038300

#	Time	Username	Problem	Language	Result	Execution time	Memory
1038300		0pt1mus23	Bank (IZhO14_bank)	C++14	100 / 100	90 ms	16876 KiB

bank

#pragma GCC optimize("O3", "inline")

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

// #ifndef ONLINE_JUDGE 
// #include "0pt1z.hpp"
// #else
// #define dbg(...)
// #endif

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

#define ins insert
#define pb push_back
#define int long long int
#define pii pair<int, int>
#define endl '\n' 
#define drop(x) cout<<(x)<<endl; return;
#define all(x) x.begin(),x.end()
#define hash z0hashp
#define div  z0dvp
const int mod = 1e9 +7, sze = 1e5 +10, inf = LLONG_MAX, P = 1453;

void opt1z(){
    int n,m;
    cin>>n>>m;
    vector<int> people(n);
    for(int i=0;i<n;i++){
        cin>>people[i];
    }   
    vector<int> notes(m); 
    for(int j=0;j<m;j++){
        cin>>notes[j];
    }
    vector<int> left((1<<m),-1);
    vector<int> cover((1<<m),-1);
    left[0]=0;
    cover[0]=0;

    for(int i=0;i<(1<<m);i++){
        for(int j=0;j<m;j++){
            if(i & (1<<j)){
                int prev = (i & ~(1<<j));
                if(cover[prev]==-1){
                    continue;
                }
                int nw = left[prev] + notes[j];
                int tar = people[cover[prev]];
                if(nw<tar){
                    cover[i]=cover[prev];
                    left[i]=nw;
                }
                else if(nw==tar){
                    cover[i]=cover[prev]+1;
                    left[i]=0;
                }
            }
        }
        if(cover[i]==n){
            drop("YES");
        }
    }

    drop("NO");
}
signed main() {
    cin.tie(0)->sync_with_stdio(0);
    int tt = 1;
    // cin>>tt;
    while(tt--){
        opt1z();
    }
 
    return 0;
} 
 

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