Submission #897724

#	Time	Username	Problem	Language	Result	Execution time	Memory
897724		mihtriii295	Vlak (COCI20_vlak)	C++17	0 / 70	7 ms	11016 KiB

Main

#include<bits/stdc++.h>

using namespace std;

#define ll long long
#define el cout << '\n'
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)

/* Code by Nguyen Minh Tri (mihtriii) 12TT THPT Chuyen Ben Tre */

const ll N = 3e5 + 1;

ll n, m;

struct Node{
	Node *child[26];
	int cnt;
	bool fn;
	Node(){
		fn = 0;
		cnt = 0;
		memset(child, 0, sizeof(child));
	}
};

Node *root = new Node();
void Add(string s){
	int timer = 0;
	Node *p = root;
	for (char c : s){
		if (p -> child[c - 'a'] == 0 && c){
			p -> child[c - 'a'] = new Node();
		}
		p = p -> child[c - 'a'];
		p -> cnt = ++timer;
	}
	p -> fn = 1;
}

bool Querry(string s){
	int timer = 0;
	Node *p = root;
	for (char c : s){
		++timer;
		if (p -> child[c - 'a'] == 0){
			if (timer & 1) return 0;
			else return 1;
		}
		p = p -> child[c - 'a'];
		if (p -> fn) return 1;
	}
	return 1;
}

int main(){
	ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    if (fopen("coci2021_r3_vlak.inp", "r")){
		freopen("coci2021_r3_vlak.inp", "r", stdin);
		freopen("coci2021_r3_vlak.out", "w", stdout);
	}
	cin >> n;
	for (int i = 1; i <= n; ++i){
		string s;
		cin >> s;
		Add(s);
	}
	bool ok = 0;
	cin >> m;
	for (int i = 1; i <= m; ++i){
		string s;
		cin >> s;
		if (Querry(s) == 0){
			ok = 1;
			break;
		}
	}
	if (ok)
		cout << "Nina";
	else
		cout << "Emilija";
	return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:60:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |   freopen("coci2021_r3_vlak.inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:61:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   61 |   freopen("coci2021_r3_vlak.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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