question
my attempt
https://www.codechef.com/viewsolution/25045961
failing in test case 16
IN CASE LINK DOESNT WORK HERE IS THE CODE
#include<bits/stdc++.h>
#define ll long long int
#define ull unsigned long long int
#define ff first
#define ss second
#define fast ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define pb push_back
#define mp make_pair
#define inf 2000000009
using namespace std;
ll fun(ll start,ll end,ll n,ll coin,ll c)
{ end=min(n,end);
ll step=(-start+end)/7,x,k;
while(end-start>=7 )
{
k=start+step;
if(k==end)
k–;
cout<<1<<" "<<k<<endl;
coin++;
cin>>x;
if(x)
{ coin+=c+1;
end=k;
cout<<2<<endl;
step=(-start+end)/7;
}
else
{coin++;
start=k; }
}
for(ll i=start;i<=end;i++)
{
if(i==end)
cout<<3<<" “<<i<<endl;
else
{
cout<<1<<” “<<i<<endl;
cin>>x;
if(x)
{ coin+=c+1;
cout<<2<<endl;
cout<<3<<” "<<i<<endl;
break;
}
else coin++;}}
while(coin>1000)
{
}
}
int main()
{
fast;
ll n,c,x,coin=0;
cin>>n>>c;
cout<<1<<" “<<1<<endl;
coin++;
cin>>x;
if(x)
{
cout<<2<<endl;
cout<<3<<” “<<1<<endl;
return 0;
}
ll i;
if(!x)
{
for( i=2;i<=n;i*=2)
{cout<<1<<” "<<i<<endl;
cin>>x;
if(x)
{ cout<<2<<endl;
coin+=c+1;
break;
}
else coin++;
}
}
fun(i/2,i,n,coin,c);
}