Submission #573100

#	Time	Username	Problem	Language	Result	Execution time	Memory
573100		StrawHatWess	Uplifting Excursion (BOI22_vault)	C++17	0 / 100	5039 ms	1836 KiB

vault

#include <bits/stdc++.h>
using namespace std;
#define boost ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
 
typedef vector<int>vi; 
#define pb push_back
#define all(x) begin(x), end(x)
#define sz(x) (int)x.size()

typedef pair<int,int>pi;
typedef vector<pi>vpi; 
#define fi first
#define se second
 
#define FOR(i,a,b) for(int i=a; i<b; i++)
#define ROF(i,a,b) for(int i=b-1; i>=a; i--)
 
template<class T> bool ckmin(T& a, const T& b) { return a > b ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
 
const int INF=2e9;
const int MX=1e5+10; 
 
 
 
void IO() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin); 
    freopen("output.txt", "w", stdout);
#endif
}
/////////////////////////ONLY CLEAN CODES ALLOWED/////////////////////////


int main(){
	IO(); boost; 


	int M,L; cin>>M>>L; 

	unordered_map<int,int>mp; 
	FOR(i,-M,M+1){
		int n; cin>>n; 
		while(n--){
			vpi vec; 
			for(auto it: mp){
				int x=it.fi;  
				vec.pb({x+i, mp[x]+1}); 
			}

			for(auto it: vec){
				int k=it.fi, x=it.se; 
				ckmax(mp[k],x); 
			}

			if(!mp.count(i)) mp[i]=1; 
		}
	}

	if(!mp.count(L)) cout << "impossible" << endl; 
	else cout << mp[L] << endl;

	


}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 15
• Subtask 3-1: 0 / 10
• Subtask 3-2: 0 / 10
• Subtask 4-1: 0 / 10
• Subtask 4-2: 0 / 10
• Subtask 5-1: 0 / 10
• Subtask 5-2: 0 / 10
• Subtask 6-1: 0 / 10
• Subtask 6-2: 0 / 10