Submission #1361285

#	Time	Username	Problem	Language	Result	Execution time	Memory
1361285		chubyxdxd	Dark Ride (EGOI25_darkride)	C++20	0 / 100	0 ms	344 KiB

Main

#include <bits/stdc++.h>

#define pb push_back
#define sc second
#define ff first
#define all(a) a.begin(),a.end()
#define mem(a,i) memset(a,i,sizeof a)
#define forr(i,n) for(int i=0;i<n;i++)
#define nl '\n'
using namespace std;
typedef long long ll;
typedef pair<ll,ll> ii;
typedef vector<int> vi;


int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin>>n;
    vector<int> v;
    string s="";
    for(int i=0;i<n;i++){
      s+='0';
    }
    for(int i=0;i<n;i++){
      s[i]='1';
      cout<<"? "<<s<<endl;
      int l;
      cin>>l;
      if(l%2==1){
	v.pb(i);
      }
    }
    cout<<"! "<<v[0]<<" "<<v.back()<<endl;
}

// pineapple

• Subtask 1: 0 / 0
• Subtask 2: 0 / 9
• Subtask 3: 0 / 15
• Subtask 4: 0 / 17
• Subtask 5: 0 / 16
• Subtask 6: 0 / 14
• Subtask 7: 0 / 29