Submission #1266282

#	Time	Username	Problem	Language	Result	Execution time	Memory
1266282		DanielPr8	Bring Down the Grading Server (CEOI23_gradingserver)	C++20	0 / 100	4097 ms	260272 KiB

gradingserver

#include <bits/stdc++.h>
using namespace std;
using ll = int;
using vll = vector<ll>;
using vvl = vector<vll>;
using pll = pair<ll,ll>;
using vpl = vector<pll>;
using vvp = vector<vpl>;

#define f first
#define s second
#define pb push_back
#define all(v) v.begin(),v.end()
map<pair<pll,pll>,ll> hs;
ll s;
ll calc(ll c1, ll f1, ll c2, ll f2){
    if(c1==0)return 0;
    if(c2==0)return 1;
    if(hs.count({{c1,f1},{c2,f2}}))return hs[{{c1,f1},{c2,f2}}];
    if(f2>0){
        if(calc(c2,f2-1, c1,f1)==0)return hs[{{c1,f1},{c2,f2}}]=1;
    }
    if(c1>f2*s){
        if(calc(max<ll>(0, c2-c1+f2*s), f2, c1, f1)==0)return hs[{{c1,f1},{c2,f2}}]=1;
    }
    return hs[{{c1,f1},{c2,f2}}]=0;;
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(NULL);
    ll n;
    cin >> s >> n;
    while(n--){
        ll a,b,c,d;
        cin >> a >> b >> c >> d;
        if(calc(a,b,c,d))cout << "YES\n";
        else cout << "NO\n";
    }
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 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