Submission #707370

#	Time	Username	Problem	Language	Result	Execution time	Memory
707370		beaconmc	Xoractive (IZhO19_xoractive)	C++14	6 / 100	6 ms	464 KiB

Xoractive

#include "interactive.h"

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

typedef int ll;
using namespace std;
//using namespace __gnu_pbds;

#define FOR(i, x, y) for(ll i=x; i<y; i++)
#define FORNEG(i, x, y) for(ll i=x; i>y; i--)
//#define ordered_set tree<ll, null_type,less_equal<ll>, rb_tree_tag,tree_order_statistics_node_update>
#define fast() ios_base::sync_with_stdio(false);cin.tie(NULL)

int one = -1;

vector<int> getxor(vector<int> lis){
	vector<int> ans = get_pairwise_xor(lis);
	vector<int> realans;
	FOR(i,0,ans.size()){
		if (i%2==0) continue;
		if (ans[i] == 0) continue;
		realans.push_back(ans[i]);
	}
	return realans;
}


vector<int> getnum(vector<int> lis){
	vector<int> sus = getxor(lis);
	lis.push_back(1);
	vector<int> sus2 = getxor(lis);

	set<int> SUS, SUS2;
	for (auto&i : sus) SUS.insert(i);
	for (auto&i : sus2) SUS2.insert(i);
	vector<int> temp;
    for (auto&i : SUS2) if (SUS.count(i) == 0) temp.push_back(i^one);

    return temp;
}
int intersect(vector<vector<int>> idk){
	for (auto&i : idk[0]){
		bool flag = false;
		for (auto&j : idk){
			if (!count(j.begin(),j.end(),i)) flag = true;
		}
		if (!flag) return i;
	}

}

vector<int> imp[8];


vector<int> guess(int n) {
	set<ll> everything;
	one = ask(1);

	FOR(i,2,n+1){
		FOR(j,0,7){
			if (i & (1<<j)) imp[j].push_back(i);
		}
	}

	FOR(i,0,7){
		if (imp[i].size()) imp[i] = getnum(imp[i]);
	}

	imp[0].push_back(one);
	for (auto&i : imp){
		for (auto&j : i){
			everything.insert(j);
		}
	}



	vector<int> ans;
	FOR(i,1,n+1){
		vector<vector<int>> temp;
		FOR(j,0,7){
			if (i & (1<<j)) temp.push_back(imp[j]);
			else{
				vector<int> temp2;
				set<ll> idk;
				for (auto&k : imp[j]) idk.insert(k);
				for (auto&k : everything) if (idk.count(k) == 0) temp2.push_back(k);
				temp.push_back(temp2);

			}
		}
		ans.push_back(intersect(temp));
	}
	return ans;


}

Compilation message (stderr)

Xoractive.cpp: In function 'std::vector<int> getxor(std::vector<int>)':
Xoractive.cpp:11:35: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 | #define FOR(i, x, y) for(ll i=x; i<y; i++)
......
   21 |  FOR(i,0,ans.size()){
      |      ~~~~~~~~~~~~~~                
Xoractive.cpp:21:2: note: in expansion of macro 'FOR'
   21 |  FOR(i,0,ans.size()){
      |  ^~~
Xoractive.cpp: In function 'int intersect(std::vector<std::vector<int> >)':
Xoractive.cpp:52:1: warning: control reaches end of non-void function [-Wreturn-type]
   52 | }
      | ^

• Subtask 1: 6 / 6
• Subtask 2: 0 / 94