Submission #441998

#	Time	Username	Problem	Language	Result	Execution time	Memory
441998		huukhang	Vlak (COCI20_vlak)	C++17	70 / 70	20 ms	10188 KiB

Main

/*
						   Khangnh's code
 
“You can either experience the pain of discipline or the pain of regret. 
						The choice is yours.”
*/
 
// - Only when necessary :d
// #pragma GCC optimize("Ofast")
// #pragma GCC optimize("unroll-loops")
// #pragma GCC target("avx,avx2,fma")
 
#include <bits/stdc++.h>
using namespace std;
 
#define fileopen(a, b) freopen(((string)a + ".inp").c_str(), "r", stdin); freopen(((string)b + ".out").c_str(), "w", stdout);
 
#define ll long long
// #define int long long
#define ld long double
#define fi first
#define se second
#define pb push_back
#define pf push_front
#define pob pop_back
#define pof pop_front
typedef pair<int, int> pii;
 
const ll mod = 1e9 + 7;
const ll inf = 1e9 + 7;
const double eps = 1e-9;
 
struct node {
	int child[26];
	int fin;
};
 
int dp[200005] = {0};
struct trie {
	int n;
	node t[200005];
 
	trie() : n(0) {
		memset(t[0].child, -1, sizeof(t[0].child));
		t[0].fin = 0;
	}
 
	void init(int u) {
		memset(t[u].child, -1, sizeof(t[u].child));
		t[u].fin = 0;
	}
 
	void push(const string &s, int k) {
		int p = 0;
		for (int i = 0; i < s.size(); ++i) {
			if (t[p].child[s[i] - 'a'] == -1) {
				init(++n);
				t[p].child[s[i] - 'a'] = n;
			}
			p = t[p].child[s[i] - 'a'];
		}
		t[p].fin |= k;
	}
 
	void dfs(int u, int dep = 0) {
		dp[u] = t[u].fin;
		for (int i = 0; i < 26; ++i) {
			if (t[u].child[i] != -1) {
				dfs(t[u].child[i], dep + 1);
				dp[u] |= dp[t[u].child[i]];
			}
		}
		if (t[u].fin > 0) return;
 
		if (dep%2 == 0) {
			if ((dp[u] >> 0) & 1) dp[u] = 1;
			else dp[u] = 2;
		} else {
			if ((dp[u] >> 1) & 1) dp[u] = 2;
			else dp[u] = 1;
		}
	}
} t;
 
int n, m;
 
void solve() {
	cin >> n;
	for (int i = 1; i <= n; ++i) {
		string s;
		cin >> s;
		t.push(s, 1);
	}
	cin >> m;
	for (int i = 1; i <= m; ++i) {
		string s;
		cin >> s;
		t.push(s, 2);
	}
 
	t.dfs(0);
	cout << ((dp[0] == 1) ? "Nina" : "Emilija");
}
 
signed main() {
	#ifdef LOCAL
		fileopen("input", "output");
		auto start = clock();
	#endif
	#ifndef LOCAL
//		fileopen("LAH", "LAH");
	#endif
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int test = 1;
//	cin >> test;
	for (int tc = 1; tc <= test; ++tc) solve();
	#ifdef LOCAL
		auto end = clock();
		cout << "\n\nExecution time : " << double(end - start)/CLOCKS_PER_SEC << "[s]";
	#endif
	return 0;
}

Compilation message (stderr)

Main.cpp: In member function 'void trie::push(const string&, int)':
Main.cpp:55:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |   for (int i = 0; i < s.size(); ++i) {
      |                   ~~^~~~~~~~~~

• 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