Submission #731699

#	Time	Username	Problem	Language	Result	Execution time	Memory
731699		shadow_sami	Martian DNA (BOI18_dna)	C++17	0 / 100	1 ms	340 KiB

dna

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long int ll;
typedef vector<ll> vi;
typedef pair<ll,ll> pi;
#define ff first
#define ss second
#define all(a) a.begin(),a.end()
#define fip(a,b) for(ll i = a; i < b ; i++)
#define fjp(a,b) for(ll j = a; j < b ; j++)
#define fp(k,a,b) for(ll k = a; k < b ; k++)
#define fin(a,b) for(ll i = a; i >= b ; i--)
#define fjn(a,b) for(ll i = a; j >= b ; j--)
#define fn(k,a,b) for(ll k = a; k >= b ; k--)
#define fx(a) fx(auto x : a)
#define ordered_set tree<pi,null_type,less<pi>,rb_tree_tag,tree_order_statistics_node_update>
#define total_one(k) __builtin_popcount(k)
#define back_zero(k) __builtin_ctzll(k)
#define front_zero(k) __builtin_clzll(k)
#define nli "\n"

ll n,m,ans,sum,res,cnt,tptp,tp,tp2;

const ll mx = 2e5 + 5;
const ll mod = 1e9 + 7;

ll query(ll k){
	cout<<"? "<<k<<" 1 1\n";
	cout.flush();
	ll result;
	cin>>result;
	cout.flush();
	return result;
}

void answer(ll k){
	cout<<"! "<<k<<" 1 1\n";
	cout.flush();
	return;
}

ll find(ll l,ll r){
	if(l==r)
		return l;
	ll mid = l + (r-l)/2;
	ll val1 = query(mid);
	ll val2 = query(mid+1);
	if(val1>=val2){
		return find(l,mid);
	}else
		return find(mid+1,r);
	return 0;
}

int main(){
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	// #ifdef code
		// freopen("input1.txt","r",stdin);
		// freopen("output1.txt","w",stdout);
		// freopen("error1.txt","w",stderr);
	// #endif

		cin>>n>>tp>>tp2>>m;
		ans = find(1,n);
		answer(ans);

	// cerr << "Time elapsed : " << setprecision(6) << 100.00 * clock() / CLOCKS_PER_SEC << "ms\n";
}

• Subtask 1: 0 / 16
• Subtask 2: 0 / 24
• Subtask 3: 0 / 28
• Subtask 4: 0 / 32