Submission #283845

#	Time	Username	Problem	Language	Result	Execution time	Memory
283845		balbit	The Big Prize (IOI17_prize)	C++14	Compilation error	0 ms	0 KiB

prize

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pii pair<int, int>
#define f first
#define s second

#define ALL(x) (x).begin(), (x).end()
#define SZ(x) (int)((x).size())
#define pb push_back

#ifdef BALBIT
#define bug(...) cerr<<"#"<<__LINE__<<" "<<#__VA_ARGS__<<": ", _do(__VA_ARGS__)
template <typename T> void _do(T && x) {cerr<<x<<endl;}
template <typename T, typename ...S> void _do(T && x, S&&...y) {cerr<<x<<", "; _do(y...);}
#define IOS()
#else
#define bug(...)
#define IOS() ios::sync_with_stdio(0), cin.tie(0)
#define endl '\n'
#endif


int find_best(int n) {
	int l = 0, r = n-1;
	while (l!=r) {
		int mid = (l+r)/2;
		vector<int> x = ask(mid);
		if (x[0] == 0 && x[1] == 0) return mid;
		if (x[1]) l = mid+1;
		else r = mid-1;
	}
	return l;
}

#ifdef BALBIT
signed main(){
	IOS();
	bug(1,2);


}
#endif

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:29:19: error: 'ask' was not declared in this scope
   29 |   vector<int> x = ask(mid);
      |                   ^~~