Submission #688578

#	Time	Username	Problem	Language	Result	Execution time	Memory
688578		rieyuw	Vlak (COCI20_vlak)	C++17	70 / 70	56 ms	33996 KiB

Main

#include <bits/stdc++.h>

using namespace std;

const int mxN = 1e5+10;
vector<vector<array<int,3>>> nxt(mxN, vector<array<int,3>>(26));
 
bool dfs(int node, int depth)
{
    int par = (depth & 1);
    bool res = !par;
    for (int i = 0; i < 26 && res != par; ++i)
    {
        array<int,3>& p = nxt[node][i];
        if (p[0] != 0 & p[2-par])
        {
            bool neigRes = dfs(p[0], depth+1);
            if (par)
                res |= neigRes;
            else
                res &= neigRes;
        }
    }
    return res;
}

int main() 
{
    ios::sync_with_stdio(0), cin.tie(0);
    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:15:18: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   15 |         if (p[0] != 0 & p[2-par])

• 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