Submission #521913

#	Time	Username	Problem	Language	Result	Execution time	Memory
521913		dostigator	Xoractive (IZhO19_xoractive)	C++17	Compilation error	0 ms	0 KiB

Xoractive

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

vector<int> guess(int n) {
	vector <int> ans(n+2);
	int base=ask(1);
	ans[1]=base;
	map<int,int>res;
	for(int i=0; i<7; ++i){
        vector<int>v;
        for(int x=1; x<=n; ++x) if((x>>i)&1) v.push_back(x);
        vector<int>get=get_pairwise_xor(v);
        v.push_back(1);
        vector<int>GET=get_pairwise_xor(v);
        map<int,int>mp;
        for(int x:get) mp[x]++;
        for(int x:GET){
            if(mp[x]==0) res[x^base]|=(1<<i);
            mp[x]--;
        }
	}
	for(int [x,y]:res){
        ans[y]=x;
	}
	return ans;
}

Compilation message (stderr)

Xoractive.cpp: In function 'std::vector<int> guess(int)':
Xoractive.cpp:23:10: error: structured binding declaration cannot have type 'int'
   23 |  for(int [x,y]:res){
      |          ^~~~~
Xoractive.cpp:23:10: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'