Submission #1083525

#	Time	Username	Problem	Language	Result	Execution time	Memory
1083525		HaciyevAlik	Vlak (COCI20_vlak)	C++14	70 / 70	21 ms	27740 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long 
#define oo 1000000000000000
const int mx = 1e6 + 5;

int trie[mx][26];
int last;
int dp[mx];
vector<int> mark;

void insert(string s,bool turn) {
	int cur = 0;
	for(int i = 0; i < s.size(); ++i) {
		if(!trie[cur][s[i]-'a']) {
			trie[cur][s[i]-'a'] = ++last;
		}
		cur = trie[cur][s[i]-'a'];
	}
	if(mark[cur] == -1) {
		mark[cur] = turn;
	} else {
		mark[cur] = (mark[cur] != turn ? 2 : mark[cur]);
	}
}

void dfs(int u,int lvl) {
	if(lvl % 2) {
		dp[u] = 1;
	} else {
		dp[u] = 2;
	}
	bool check = false;
	for(int i = 0; i < 26; ++i) {
		if(trie[u][i]) {
			dfs(trie[u][i],lvl + 1);
			check = 1;
			if(lvl%2) dp[u] = max(dp[u],dp[trie[u][i]]);
			else dp[u] = min(dp[u],dp[trie[u][i]]);
		}
	}
	if(!check) {
		if(mark[u] == 2) {
			if(lvl%2) dp[u] = 1;
			else dp[u] = 2;
		} else {
			dp[u] = mark[u] + 1;
		}
	}
}

signed main(){
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    mark.assign(mx, -1);
	int n; cin >> n;
	for(int i = 1; i <= n; ++i) {
		string s; cin >> s;
		insert(s,0);
	}	    
	int m; cin >> m;
	for(int i = 1; i <= m; ++i) {
		string s; cin >> s;
		insert(s,1);
	}
	dfs(0,0);
	if(dp[0] == 1) {
		cout << "Nina";
	} else {
		cout << "Emilija";
	}
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void insert(std::string, bool)':
Main.cpp:14:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |  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