Submission #475578

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
475578	2021-09-23T04:38:27 Z	ismoilov	Xoractive (IZhO19_xoractive)	C++14	Compilation error	0 ms	0 KB

Xoractive

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

int[] guess(int n)
{
	if(n <= 14){
		int ans[n];
		for(int i = 1; i <= n; i ++)
			ans[i-1] = ask(i);
		return ans;
	}
	
	
	int a = ask(1);
	map <int, int> s;
	for(int i = 0; i < 7; i ++){
		vector <int> x;
		for(int j = 1; j < n; j ++)
			if(j >> i & 1)
				x.push_back(j+1);
		vector <int> c = get_pairwise_xor(x);
		c.push_back(1);
		vector <int> c1 = get_pairwise_xor(x);
		map <int, int> g;
		for(int j : c)
			g[j] --;
		for(int j : c1)
			g[j] ++;
		for(auto it : g)
			if(it.second > 0)
				s[it.first^a] += (1<<i);
	}
	int ans[n];
	ans[0] = a;
	for(auto it : s)
		ans[it.second] = it.first;
	return ans;
}

Compilation message

Xoractive.cpp:5:4: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
    5 | int[] guess(int n)
      |    ^
Xoractive.cpp:5:4: error: structured binding declaration cannot have type 'int'
    5 | int[] guess(int n)
      |    ^~
Xoractive.cpp:5:4: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
Xoractive.cpp:5:4: error: empty structured binding declaration
Xoractive.cpp:5:7: error: expected initializer before 'guess'
    5 | int[] guess(int n)
      |       ^~~~~