Submission #1069770

#	Time	Username	Problem	Language	Result	Execution time	Memory
1069770		Abito	Bring Down the Grading Server (CEOI23_gradingserver)	C++17	5 / 100	979 ms	150352 KiB

gradingserver

#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
#define int long long
#define ll long long
typedef unsigned long long ull;
using namespace std;
const int N=80;
int s;
bool vis[N][N][N][N][2],dp[N][N][N][N][2];
bool rec(int i,int j,int k,int l,bool h){
	if (i<=0) return h;
	if (k<=0) return !h;
	if (vis[i][j][k][l][h]) return dp[i][j][k][l][h];
	vis[i][j][k][l][h]=1;
	if (!h){
		if (l) dp[i][j][k][l][h]|=!rec(i,j,k,l-1,1);
		if (i-s*l>0) dp[i][j][k][l][h]|=!rec(i,j,k-i+s*l,l,1);
	}
	else{
		if (j) dp[i][j][k][l][h]|=!rec(i,j-1,k,l,0);
		if (k-s*j>0) dp[i][j][k][l][h]|=!rec(i-k+s*j,j,k,l,0);
	}
	return dp[i][j][k][l][h];
}
int32_t main(){
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
	int T;cin>>s>>T;
	while (T--){
		int ch,fh,cg,fg;
		cin>>ch>>fh>>cg>>fg;
		if (rec(ch,fh,cg,fg,0)) cout<<"YES"<<endl;
		else cout<<"NO"<<endl;
	}
	return 0;
}

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 10
• Subtask 5: 0 / 25
• Subtask 4: 0 / 20
• Subtask 6: 0 / 20
• Subtask 7: 0 / 15