Submission #922399

#	Time	Username	Problem	Language	Result	Execution time	Memory
922399		Nurislam	Bank (IZhO14_bank)	C++17	19 / 100	100 ms	600 KiB

bank

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp> 
#include <ext/pb_ds/tree_policy.hpp> 


using namespace std;
using namespace __gnu_pbds; 
  

#define pb push_back
#define ff first
#define ss second
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define int long long
#define double long double 
#define order_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update> 

///*                                                    __                    __                        __                    */
///*        ======     _      /| /|  __   _            /   |  |   /|  |   @  |    |  |  | /   /| |\  | /   |  |  @ | /        */
///* \-       ||  |_| |_     / |/ | |  | |_  |-        |   |--|  /-|  |   |  \ \  |==|  |-   /=| | \ | |   |--|  | |-         */
///*          ||  | | |_    /     | |__|  _| |_        \__ |  | /  |  |__ |  __|  |  |  | \ /  | |  \| \__ |  |  | | \        */
///* 

typedef vector<int> vi;
typedef vector<double> vd;
typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef vector<vi> vv;
const int N = 2e5+4, inf = 1e8, mod = 998244353;

void solve(){
	int n, m;
	cin >> n >> m;
	int cnt = 0, us[m]{};
	vi b(m);
	map<int,int> mp;
	for(int i = 0, x; i < n; i++){cin >> x;mp[x]++;}
	for(int &i:b)cin >> i;
	sort(all(b));
	//~ for(int i:b)cout << i << ' ';
	//~ cout << '\n';
	for(int ms = 0; ms < (1<<m); ms++){
		int sum = 0, ok = 0;
		for(int i = 0; i < m; i++){
			if((ms>>i)&1){
				sum+=b[i];
				if(us[i])ok = 1;
			}
		}
		if(ok)continue;
		//~ cout << sum << '\n';
		if(mp[sum] > 0){
			mp[sum]--;
			cnt++;
			for(int i = 0; i < m; i++){
				if((ms >> i)&1)us[i] = 1;
			}
		}
	}
	if(cnt == n)cout << "YES\n";
	else cout << "NO\n";
}
main(){
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
	int test = 1;
	//~ cin >> test;
	while(test--){
		solve();
	}
}

Compilation message (stderr)

bank.cpp:64:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   64 | main(){
      | ^~~~

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