Submission #141349

#	Time	Username	Problem	Language	Result	Execution time	Memory
141349		Ruxandra985	Easter Eggs (info1cup17_eastereggs)	C++14	Compilation error	0 ms	0 KiB

eastereggs

#include <cstdio>
#include <vector>

using namespace std;
int poz;
void euler (int nod ,int tata, vector <pair <int,int> > v , vector <int> &eul ){
    int x,y;
    eul.push_back(nod);
    for (int i = 0 ; i < v.size() ; i++){
        x = v[i].first;
        y = v[i].second;
        if (x == nod && y!=tata){
            euler (y,nod,v,eul);
            eul.push_back(nod);
        }
        else if (y == nod && x != tata){
            euler (x,nod,v,eul);
            eul.push_back(nod);
        }
    }
}

int findEgg (int n , vector <pair <int,int> > v){
    int st,dr,mid,sol;
    vector <int> eul,islands;
    euler(1,0,v,eul); /// eul e un vector cu parc euler , dim 2*n
    st = 0;
    dr = 2*n-2;
    while (st<dr){
        mid = (st + dr)/2;
        /// iei de la st la mid
        islands.clear();
        for (int i=st;i<=mid;i++)
            islands.push_back(eul[i]);
        sol = query(islands);
        if (sol == 0)
            st = mid + 1;
        else dr = mid;
    }
    return eul[st];
}

Compilation message (stderr)

eastereggs.cpp: In function 'void euler(int, int, std::vector<std::pair<int, int> >, std::vector<int>&)':
eastereggs.cpp:9:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0 ; i < v.size() ; i++){
                      ~~^~~~~~~~~~
eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:35:15: error: 'query' was not declared in this scope
         sol = query(islands);
               ^~~~~