Submission #962595

#	Time	Username	Problem	Language	Result	Execution time	Memory
962595		Mohamed_Kachef06	Combo (IOI18_combo)	C++17	10 / 100	25 ms	1216 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"
//#include "grader.cpp"
using namespace std;

string guess_sequence(signed N){
    char a[] = {'A' , 'B' , 'X' , 'Y'};
    string s;
    for (int i = 0 ; i < 4 ; i++) {if (press(s+a[i])) {s+=a[i]; break;}};
    for (int i = 0 ; i < N-1 ; i++){
      random_shuffle(a , a+4); 
      for (int j = 0 ; j < 4 ; j++) if (a[j] != s[0]) if (press(s+a[j]) > s.size()) {s+=a[j]; break;} 
    }
    return s; 
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:12:73: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |       for (int j = 0 ; j < 4 ; j++) if (a[j] != s[0]) if (press(s+a[j]) > s.size()) {s+=a[j]; break;}
      |                                                           ~~~~~~~~~~~~~~^~~~~~~~~~

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