Submission #683831

#	Time	Username	Problem	Language	Result	Execution time	Memory
683831		thegamercoder19	Combo (IOI18_combo)	C++14	5 / 100	2 ms	256 KiB

combo

#include "combo.h"

#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>

#define M_PI       3.14159265358979323846
#define FILER 0
using ll = long long;
using ull = unsigned long long;
using ld = long double;
const ll MOD = pow(10, 9) + 7;
const ll INFL = 0x3f3f3f3f3f3f3f3f;
const ull INFUL = 0x3f3f3f3f3f3f3f3f;
const ll INFT = 0x3f3f3f3f;
const ull MAX = 1LL << 24;
const ll MODD = 998244353;
const double EPS = 1e-10;
#define V vector
#define pll pair<ll, ll>
#define pull2 pair<ull,ull>
#define MS multiset
#define M map
#define Q queue
#define PQ priority_queue
#define IOF ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define FOR(typ,i,a,b,c) for(typ i = a; i < b; i += c)
#define FORR(typ,i,a,b,c) for(typ i = a; i > b; i -= c)
#define FORA(a,i) for(auto &i : a)
#define all(v) v.begin(),v.end()
#define sz(v) v.size()
#define sorta(a) sort(all(a))
#define sortd(a) sort(all(a), greater<ll>())
#define setp(x) setprecision(x)<<fixed
#define RET return
#define log(a,b) log(b)/log(a)
#define WH(s) while(s)
#define WHI(t) WH(t--)
#define YES cout<<"YES"<<endl;
#define NO cout<<"NO"<<endl;
#define Yes cout<<"Yes"<<endl;
#define No cout<<"No"<<endl;
#define YESNO(s) cout << (s ? "YES" : "NO") << endl;
#define YesNo(s) cout<<(s?"Yes":"No")<<endl;
#define TYP 0
using namespace std;
std::string guess_sequence(int n) {

	std::mt19937 mt(chrono::steady_clock::now().time_since_epoch().count());
	std::uniform_int_distribution<int> dist(0,3);
	char c[] = { 'A','B','X','Y' };
	ll pres = 0;
	string ask = "";
	FOR(ll, i, 0, n, 1)
	{
		WH(1)
		{
			char x = c[dist(mt)];
			if (i > 0 && x == ask[0])continue;
			if (press(ask + x) - 1 == pres) {
				pres++, ask += x; break;
			}
		}
		
	}
		
			
	return ask;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 95