Submission #605266

#	Time	Username	Problem	Language	Result	Execution time	Memory
605266		AmirElarbi	Combo (IOI18_combo)	C++14	10 / 100	60 ms	456 KiB

combo

#include <bits/stdc++.h>
#define vi vector<int>
#define gi greater<int>
#define gr greater
#define ve vector
#define ll long long
#define vf vector<float>
#define vll vector<pair<ll,ll>>
#define ii pair<int,int>
#define pll pair<ll,ll>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 1e9
#define eps 1e-7
#define eps1 1e-2
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 2e5+5
using namespace std;
const int MOD = 1e9+7;
const int nax = 1e6+5;
typedef complex<int> Point;
#define X real()
#define Y imag()

#include "combo.h"
char let[4] = {'A','B','X','Y'};
string guess_sequence(int n) {
    string s = "";
    int beg = 0;
    if(press("A")) beg = 0,s = "A";
    else if(press("B")) beg = 1,s= "B";
    else if(press("X")) beg = 2,s = "X";
    else beg = 3,s = "Y";
    for (int i = 2; i <= n; ++i)
    {
        int cnt = 0;
        for (int j = 0; j < 4; ++j)
        {
            if(beg == j) continue;
            if(cnt < 2 && press(s + let[j]) == i) {
                cnt++;
                s += let[j]; 
                break;
            } else if(cnt == 2){
                s += let[j]; 
            }
        }
    }
    return s;
}

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