Submission #1133938

#	Time	Username	Problem	Language	Result	Execution time	Memory
1133938		Agageldi	Xoractive (IZhO19_xoractive)	C++17	Compilation error	0 ms	0 KiB

Xoractive

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

#define ll long long
#define N 200005
#define pb push_back
#define ff first
#define ss second
#define sz(s) (int)s.size()

vector <int> a, b, c, d, h;
vector <pair<int,int> > answer;
map <int,int> vis;

vector <int> guess(int n) {
	int y = ask(n);
	answer.pb(make_pair(y, n));
	for(int i = 0; i <= 7; i++) {
		b.clear();
		h.clear();
		for(int j = 1; j < n; j++) {
			if((j & (1 << i))) b.pb(j);
		}
		if(sz(b)) {
			c = get_pairwise_xor(b);
			b.pb(n);
			d = get_pairwise_xor(b);
			reverse(c.begin(),c.end());
			reverse(d.begin(),d.end());
			while(sz(c) > 0 && c[sz(c) - 1] == 0) c.pop_back();
			while(sz(d) > 0 && d[sz(d) - 1] == 0) d.pop_back();
			int cnt = sz(c) - 1;
			for(int j = sz(d) - 1; j >= 0; j--) {
				if(cnt >= 0 && d[j] == c[cnt]) cnt--;
				else h.pb(d[j]);
			}
			for(int k = 0; k < sz(h); k++) {
				int x = (h[k] ^ y);
				vis[x] |= (1 << i);
			}
		}
	}
	for(auto i : vis) {
		answer.pb(make_pair(i.ss,i.ff));
	}
	sort(answer.begin(),answer.end());
	for(auto i : answer) {
		a.pb(i.ss);
	}
	return a;
}

Compilation message (stderr)

Xoractive.cpp: In function 'std::vector<int> guess(int)':
Xoractive.cpp:17:17: error: 'ask' was not declared in this scope
   17 |         int y = ask(n);
      |                 ^~~
Xoractive.cpp:26:29: error: 'get_pairwise_xor' was not declared in this scope
   26 |                         c = get_pairwise_xor(b);
      |                             ^~~~~~~~~~~~~~~~