Submission #1318550

#	Time	Username	Problem	Language	Result	Execution time	Memory
1318550		g31nius	Easter Eggs (info1cup17_eastereggs)	C++20	Compilation error	0 ms	0 KiB

eastereggs

#include <iostream>
#include <vector>

using namespace std;

int cnt, ap[1009], i, n, x, q, y;
vector <int> v[1009];

int query ( vector <int> h ) {
    cnt++;
    if ( h.empty() ) {
        return 0;
    }
    for ( i = 1; i <= n; i++ ) {
        ap[i] = 0;
    }
    for ( auto it = h.begin(); it != h.end(); it++ ) {
        ap[*it] = 1;
    }
    queue <int> cc;
    cc.push ( h[0] );
    ap[h[0]] = 2;
    while ( !cc.empty() ) {
        int nod = cc.front();
        cc.pop();
        for ( auto it = v[nod].begin(); it != v[nod].end(); it++ ) {
            if ( ap[*it] == 1 ) {
                ap[*it] = 2;
                cc.push ( *it );
            }
        }
    } 
    for ( i = 1; i <= n; i++ ) {
        if ( ap[i] == 1 ) {
            return -1;
        }
    }
    for ( auto it: h ) {
        if ( it == x ) {
            return 1;
        }
    }
    return 0;
}
int findEgg ( int n, vector < pair <int, int> > bridges ) {
    if ( query ( {1} ) == 1 ) {
        return 1;
    }
    return 0;
}

int main() 
{
    vector < pair <int, int> > param;
    q = 0;

    cin >> n;

    for ( i = 1; i < n; i++ ) {
        cin >> x >> y;
        v[x].push_back(y);
        v[y].push_back(x);
        param.push_back ( { x,y } );
    }

    cin >> q;

    while ( q > 0 ) {
        cin >> x;
        cnt = 0;
        y = findEgg ( n, param );
        if ( x != y ) {
            cout << "WA\n";
        }
        else {
            cout << "OK " << cnt << '\n';
        }
        q--;
    }
    
    return 0;
}

Compilation message (stderr)

eastereggs.cpp: In function 'int query(std::vector<int>)':
eastereggs.cpp:20:5: error: 'queue' was not declared in this scope
   20 |     queue <int> cc;
      |     ^~~~~
eastereggs.cpp:3:1: note: 'std::queue' is defined in header '<queue>'; did you forget to '#include <queue>'?
    2 | #include <vector>
  +++ |+#include <queue>
    3 | 
eastereggs.cpp:20:12: error: expected primary-expression before 'int'
   20 |     queue <int> cc;
      |            ^~~
eastereggs.cpp:21:5: error: 'cc' was not declared in this scope
   21 |     cc.push ( h[0] );
      |     ^~