# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
1007120 | altern23 | Combo (IOI18_combo) | C++17 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits\stdc++.h>
#include "combo.h"
using namespace std;
#define pb push_back
#define ll int
string guess_sequence(int n){
string f;
string s = "";
vector<string>vec;
for(int i=1;i<=n;i++){
if(i == 1 || i == n){
ll x = press(s + "A" + s + "B");
ll y = press(s + "X" + s + "Y");
if(x > y){
ll a = press(s + "A");
ll b = press(s + "B");
if(a > b){
s += "A";
if(i == 1) f = "A";
}
else{
s += "B";
if(i == 1) f = "B";
}
}
else{
ll a = press(s + "X");
ll b = press(s + "Y");
if(a > b){
s += "X";
if(i == 1) f = "X";
}
else {
s += "Y";
if(i == 1) f = "Y";
}
}
}
else{
if(vec.empty()){
if(f != "A") vec.pb("A");
if(f != "B") vec.pb("B");
if(f != "X") vec.pb("X");
if(f != "Y") vec.pb("Y");
}
string tmp = s + vec[0];
for(int j=0;j<vec.size();j++) tmp += s + vec[1] + vec[j];
ll a = press(tmp);
if(a == i-1){
s += vec[2];
}
else if(a == i+1){
s += vec[1];
}
else s += vec[0];
}
}
return s;
}
/*
*/