Submission #688455

#	Time	Username	Problem	Language	Result	Execution time	Memory
688455		rieyuw	Vlak (COCI20_vlak)	C++17	10 / 70	104 ms	67788 KiB

Main

#include <bits/stdc++.h>

using namespace std;

const int mxN = 2e5+1;
vector<vector<array<int,3>>> nxt(mxN, vector<array<int,3>>(26));
//vector<bool> winning(mxN);

bool dfs(int node, int depth)
{
    int par = (depth & 1);
    bool res = !par;
    bool leave = true;
    for (int i = 0; i < 26; ++i)
    {
        array<int,3>& p = nxt[node][i];
        leave &= (p[0] == 0);
        if (p[0] != 0 & p[par])
        {
            if (par)
                res |= dfs(p[0], depth+1);
            else
                res &= dfs(p[0], depth+1);
        }
    }
    if (leave)
        return (depth%2);
    else
        return res;
}

int main() 
{
	int n; cin >> n;
    string s;
    
    int MAXID = 0;
    while(n--)
    {
        cin >> s;
        int node = 0;
        for (char c : s)
        {
            array<int,3>& p = nxt[node][c-'a'];
            if (p[0] == 0)
                p[0] = ++MAXID;
            p[1] = 1;
            node = p[0];
        }        
    }

    int m; cin >> m;
    while(m--)
    {
        cin >> s;
        int node = 0;
        for (char c : s)
        {
            array<int,3>& p = nxt[node][c-'a'];
            if (p[0] == 0)
                p[0] = ++MAXID;
            p[2] = 1;
            node = p[0];
        }        
    }
    cout << (dfs(0, 1) ? "Nina" : "Emilija") << "\n";
}

Compilation message (stderr)

Main.cpp: In function 'bool dfs(int, int)':
Main.cpp:18:18: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   18 |         if (p[0] != 0 & p[par])

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