Submission #1312880

#	Time	Username	Problem	Language	Result	Execution time	Memory
1312880		raymoo_	Vlak (COCI20_vlak)	C++17	70 / 70	14 ms	14416 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pii pair<int, int>
#define bend(v) v.begin(),v.end()
#define vect vector 
#define prq priority_queue
#define umap unordered_map
#define eb emplace_back
#define pb push_back
#define pob pop_back
#define ef emplace_front
#define pf push_front
#define pof pop_front
#define el "\n"
#define deb cout<<"\nok\n";return 
#define nextl cout<<"\n"
#define lwb lower_bound 
#define upb upper_bound
#define rs resize
#define popcnt __builtin_popcount
#define clz __builtin_clz
#define ctz __builtin_ctz
#define ll long long 
#define dbl long double
#define int long long

#define FILE "ijustwannabepartofyourskibidi"
void IO(){
    if(fopen(FILE".in", "r")){
        freopen(FILE".in", "r", stdin);
        freopen(FILE".out", "w", stdout);
    }
    else if(fopen(FILE".inp", "r")){
        freopen(FILE".inp", "r", stdin);
        freopen(FILE".out", "w", stdout);
    }
}

const ll N = 3e5 + 1, MOD = 1e9+7, INF = 1000000000000000069;

mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

ll rand(ll l, ll r){
    return uniform_int_distribution<ll>(l, r)(rng);
}
ll pm(ll a,const ll b=MOD){return ((a%b)+b)%b;}
ll sq(ll x){return x*x;}
ll __lcm(ll a, ll b, const ll lim=LLONG_MAX){
    if(a == -1 || b == -1)return -1;
    ll g = __gcd(a,b);
    if(b/g > lim/a)return -1;
    return (a/g)*b;
}

struct node{
	int nxt[26];
	char val;
	bool blocked, subtree_blocked;
	node(char v = 0){
		val = v;
		blocked = 0;
        subtree_blocked = 0;
		memset(nxt, -1, sizeof nxt);
	}
};

struct Trie{
	vect<node> t;
	
 	Trie(){
 		t.pb(node(-1));
 	}
	
	void add(const string &s){
		int p = 0;
		for(char c : s){
			if(t[p].nxt[c - 'a'] != -1) p = t[p].nxt[c - 'a'];
			else{
				t[p].nxt[c - 'a'] = t.size();
				p = t.size();
				t.pb(node(c));
			}
		}
	}
	
	void emilija(const string& s){
		int p = 0;
		vect<int> path;
		for(int i=0; s.size() > i; i++){
			path.eb(p);
			if(t[p].nxt[s[i] - 'a'] == -1){
                // cout << s << ' ' << i << el;
                // for(int j : path) cout << j << ' ';
                // nextl;
                // cout << p << ' ' << i << el;
                t[p].blocked = i & 1;
				return;
			}else p = t[p].nxt[s[i] - 'a'];
		}
	}
	
    void dfs1(int u, int dep){
        int available = 26 - count(t[u].nxt, t[u].nxt + 26, -1);

        t[u].subtree_blocked = t[u].blocked;
        
        int cnt = 0;
        for(int i=0; 26>i; i++){
            if(t[u].nxt[i] != -1){
                dfs1(t[u].nxt[i], dep + 1);
                cnt += t[t[u].nxt[i]].subtree_blocked;
            }
        }

        t[u].subtree_blocked |= cnt == available && available;

        if(dep & 1 && cnt) t[u].subtree_blocked = 1;

        // cout << u << ' ' << t[u].subtree_blocked << ' ' << t[u].val << ' ' << available << ' ' << cnt << el;
    }

	void dfs2(int u, int dep){

        int available = 26 - count(t[u].nxt, t[u].nxt + 26, -1);

        if(available == 0){
            cout << "Nina";
            exit(0);
        }

        if(dep % 2 == 1){
            for(int i=0; 26>i; i++){
                if(t[u].nxt[i] != -1 && t[t[u].nxt[i]].subtree_blocked){
                    return;
                }
            }
        }
		
		for(int i=0; 26>i; i++){
			
			if(t[u].nxt[i] != -1 && !t[t[u].nxt[i]].blocked){
				dfs2(t[u].nxt[i], dep+1);
			}
		}
	}
};

void sol(){
	int n;
	cin >> n;
	
	Trie trie;
	
	for(int i=0; n>i; i++){
		string s;
		cin >> s;
        if(s.size() % 2 == 0) s.pob();
		trie.add(s);
	}
	
	int m;
	cin >> m;
	for(int i=0; m>i;i++){
		string s;
		cin >> s;
		trie.emilija(s);
	}

	trie.dfs1(0, 0);
	trie.dfs2(0, 0);
	cout << "Emilija";
}

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);cout.tie(NULL);
    IO();
    int t = 1;
    // cin >> t;
    while(t--) sol();
}
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Compilation message (stderr)

Main.cpp: In function 'void IO()':
Main.cpp:32:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |         freopen(FILE".in", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:33:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |         freopen(FILE".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:36:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |         freopen(FILE".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:37:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |         freopen(FILE".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10