Submission #1035458

#	Time	Username	Problem	Language	Result	Execution time	Memory
1035458		TsotneSV	Easter Eggs (info1cup17_eastereggs)	C++17	Compilation error	0 ms	0 KiB

eastereggs

#include <bits/stdc++.h>
using namespace std;
/* /\_/\
  (= ._.)
  / >  \>
*/

#define pb push_back

int findEgg(int N, vector < pair < int, int > > bridges) {

    vector<vector<int>> g(N + 1); vector<int> tour;

    for(int i=0;i<N-1;i++) {
    	int u = bridges[i].first,v = bridges[i].second;
        g[u].pb(v);
        g[v].pb(u);
    }

    function<void(int,int)> dfs = [&](int v,int p) {

        tour.pb(v);

        for(int i : g[v]) {
            if(i == p) continue;
            dfs(i,v);
        }

    };

    dfs(1,0);

    int l = 0,r = N-1;

    while(l < r) {
        int mid = (l + r)/2; vector<int> islands;

        for(int i=l;i<=mid;i++) {
            islands.pb(tour[i]);
        }

        if(query(islands)) {
            r = mid;
        }else {
            l = mid + 1;
        }
    }

    return tour[r];

}
#include <bits/stdc++.h>
using namespace std;
/* /\_/\
  (= ._.)
  / >  \>
*/

#define pb push_back

int findEgg(int N, vector < pair < int, int > > bridges) {

    vector<vector<int>> g(N + 1); vector<int> tour;

    for(int i=0;i<N-1;i++) {
    	int u = bridges[i].first,v = bridges[i].second;
        g[u].pb(v);
        g[v].pb(u);
    }

    function<void(int,int)> dfs = [&](int v,int p) {

        tour.pb(v);

        for(int i : g[v]) {
            if(i == p) continue;
            dfs(i,v);
        }

    };

    dfs(1,0);

    int l = 0,r = N-1;

    while(l < r) {
        int mid = (l + r)/2; vector<int> islands;

        for(int i=l;i<=mid;i++) {
            islands.pb(tour[i]);
        }

        if(query(islands)) {
            r = mid;
        }else {
            l = mid + 1;
        }
    }

    return tour[r];

}

Compilation message (stderr)

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:42:12: error: 'query' was not declared in this scope
   42 |         if(query(islands)) {
      |            ^~~~~
eastereggs.cpp: At global scope:
eastereggs.cpp:61:5: error: redefinition of 'int findEgg(int, std::vector<std::pair<int, int> >)'
   61 | int findEgg(int N, vector < pair < int, int > > bridges) {
      |     ^~~~~~~
eastereggs.cpp:10:5: note: 'int findEgg(int, std::vector<std::pair<int, int> >)' previously defined here
   10 | int findEgg(int N, vector < pair < int, int > > bridges) {
      |     ^~~~~~~
eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:93:12: error: 'query' was not declared in this scope
   93 |         if(query(islands)) {
      |            ^~~~~