제출 #387208

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
387208		Kalashnikov	Xoractive (IZhO19_xoractive)	C++17	컴파일 에러	0 ms	0 KiB

Xoractive

#include <bits/stdc++.h>
 
#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define all(a) a.begin() , a.end()
#define F first
#define S second
 
using namespace std;
using ll = long long;
 
const int N = 2e5+5 , inf = 2e9 + 7;
const ll INF = 1e18 ,   mod = 1e9+7 , P = 6547;

vector<int> guess(int n) {
	vector<int> a(n);
	a[0] = ask(1);
	map<int,int> ans;
	for(int i = 0; (1 << i) <= n; i ++) {
		vector<int> p;
		for(int j = 2; j <= n; j ++) {
			if(j & (1 << i)) {
				p.push_back(j);
			}
		}
		auto g1 = get_pairwise_xor(p);
		p.push_back(1);
		auto g2 = get_pairwise_xor(p);
		map<int,int> mp;
		for(auto to: g2) mp[to] ++;
		for(auto to: g1) mp[to] --;
		for(auto to: mp) {
			if(to.S) {
				ans[to.F^a[0]] |= (1 << i);
			}
		}
	}
	for(auto to: ans) {
		a[to.S-1] = to.F;
	}
	return a;
}

컴파일 시 표준 에러 (stderr) 메시지

Xoractive.cpp: In function 'std::vector<int> guess(int)':
Xoractive.cpp:17:9: error: 'ask' was not declared in this scope
   17 |  a[0] = ask(1);
      |         ^~~
Xoractive.cpp:26:13: error: 'get_pairwise_xor' was not declared in this scope
   26 |   auto g1 = get_pairwise_xor(p);
      |             ^~~~~~~~~~~~~~~~