Submission #856204

#	Time	Username	Problem	Language	Result	Execution time	Memory
856204		ThylOne	Bank (IZhO14_bank)	C++14	71 / 100	1042 ms	45552 KiB

bank

#include<bits/stdc++.h>

using namespace std;
int n,m;
vector<int> salaries;
vector<int> billets;
#define BS bitset
bool mem[22][(1<<21)];
void initMem(){
	for(int i=0;i<22;i++){
		for(int j=0;j<(1<<21);j++){
			mem[i][j]=false;
		}
	}
}
bool solved(int pos,int act,int curr,int mask){
	
	if(pos==n){
		return true;
	}
	if(act<0)return false;
	else if(act==0){
		return solved(pos+1,salaries[pos+1],0,mask);
	}
	
	if(curr==m)return false;
	
	if(solved(pos,act,curr+1,mask))return true;
	if(!((mask>>curr)&1) && solved(pos,act-billets[curr],curr+1,mask+(1<<curr))){
		return true;
	}
	return false;
}
signed main(){
	initMem();
	cin>>n>>m;
	salaries.resize(n);
	billets.resize(m);
	for(int i=0;i<n;i++){
		cin>>salaries[i];
	}
	for(int i=0;i<m;i++){
		cin>>billets[i];
	}
	sort(billets.begin(),billets.end());
	
	if(solved(0,salaries[0],0,0)){
		cout<<"YES\n";
	}else{
		cout<<"NO\n";
	}
	return 0;
}

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