Submission #855734

#	Time	Username	Problem	Language	Result	Execution time	Memory
855734		IS_Rushdi	Combo (IOI18_combo)	C++17	0 / 100	0 ms	344 KiB

combo

// #include <iostream>
#include "combo.h"
using namespace std;

// int press(string x){
//     return 0;
// }
string guess_sequence(int N) {
  string p = "";
  string x = "ABXY";
  string S = ""; 
  char z = 'Y';
  p +="AB";
  int cost = press(p);
  if(cost >= 1){
    p = "A";
    cost = press(p);
    if(cost == 1) z = 'A';
    else z = 'B';
  }else{
    p = "X";
    cost = press(p);
    if(cost == 1) z = 'X';
    else z = 'Y';
  }
  S+=z;
  string tmp = "";
  for(int i = 0; i < 4; i++){
    if(x[i] != z) tmp+=x[i];
  }x = tmp;
  for(int i = S.size(); i < N; i++){
    p = "";
    for(int j = 0; j < 3; j++){
        p+=S;
        p+=x[0];
        p+=x[j];
    }p+=S;
    p+=x[1];
    cost = press(p);
    if(cost-S.size() == 2){
        S += x[0];
    }else if(cost-S.size() == 1){
        S += x[1];
    }else{
        S += x[2];
    }
  }
  if(N > 1){
    cost = press(S+x[0]);
    if(cost == N){
        S += x[0];
    }else{
        cost = press(S+x[1]);
        if(cost == N){
            S += x[1];
        }else{
            S+=x[2];
        }
        }
    }
  return S;
}
// int main(){

// }

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