#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define ff first
#define ss second
#define pii pair<int,int>
#define pll pair<long long, long long>
#define pb push_back
#define rep(i, b) for(int i = 0; i < (b); ++i)
#define rep2(i,a,b) for(int i = a; i <= (b); ++i)
#define rep3(i,a,b,c) for(int i = a; i <= (b); i+=c)
#define count_bits(x) __builtin_popcountll((x))
#define all(x) (x).begin(),(x).end()
#define size(x) (int)(x).size()
#define forall(it,x) for(auto& it:(x))
using namespace std;
//mt19937 mt;void random(){mt.seed(chrono::time_point_cast<chrono::milliseconds>(chrono::high_resolution_clock::now()).time_since_epoch().count());}
//ll rand(ll a, ll b) {return a + (mt() % (b-a+1));}
const int INF = 1e9+50;
const ll INF_L = 1e18+40;
const ll MOD = 1e9+7;
int n;
int ans_[100][100];
int ask(vector<pii> v)
{
string q = "?\n";
set<pii> s;
forall(it,v) s.insert(it);
rep(i,n)
{
rep(j,n)
{
if(s.find({i,j}) == s.end())
{
q += '0';
}
else
{
q += '1';
}
}
q += '\n';
}
cout << q;
cout.flush();
int ans;
cin >> ans;
cout.flush();
return ans;
}
int check_seg(int i, int l, int r)
{
vector<pii> v;
rep2(j,l,r) v.pb({i,j});
return ask(v);
}
void solve()
{
cin >> n;
cout.flush();
rep(i,n)
{
if(check_seg(i,0,n-1) == n*n)
{
cout << "!\n";
rep(i2,n)
{
rep(j,n)
{
if(i2 == i) cout << "1";
else cout << "0\n";
}
cout << "\n";
}
cout.flush();
return;
}
}
vector<int> dont_know;
pii ok = {-1,-1};
rep(i,n)
{
int pocz = 0;
int kon = n-1;
int ans = -1;
while(pocz <= kon)
{
int mid = (pocz+kon+1)/2;
if(mid == 0)
{
ans = -1;
dont_know.pb(i);
break;
}
int a = check_seg(i,0,mid);
if(a == n)
{
ans = mid;
break;
}
if(a % n == 0)
{
pocz = mid+1;
}
else
{
kon = mid-1;
ans = mid;
}
}
if(ans != -1)
{
ok = {i,ans};
ans_[i][ans] = 1;
}
}
if(ok.ff == -1)
{
bool was_ = true;
rep2(j,1,n-1)
{
if(ask({{0,0},{0,j}}) == n*2) was_ = false;
}
if(!was_)
{
ok = {0,1};
ans_[0][1] = 1;
}
else
{
if(ask({{0,1},{0,2}}) == n)
{
ok = {0,1};
ans_[0][1] = 1;
}
else
{
ok = {0,0};
ans_[0][0] = 1;
}
}
}
forall(it,dont_know)
{
if(it == ok.ff) continue;
if(ask({ok,{it,0}}) == n*2)
{
ans_[it][0] = 1;
}
else ans_[it][1] = 1;
}
string z = "!\n";
rep(i,n)
{
rep(j,n)
{
if(ans_[i][j] == 1) z += '1';
else z += '0';
}
z += '\n';
}
cout << z;
cout.flush();
}
int main()
{
//ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
//random();
int t = 1;
// cin >> t;
while(t--) solve();
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
344 KB |
Expected line of length N=3 |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
344 KB |
Expected line of length N=3 |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
344 KB |
Expected line of length N=3 |
| 3 |
Halted |
0 ms |
0 KB |
- |
