Submission #313693

#	Time	Username	Problem	Language	Result	Execution time	Memory
313693		Jarif_Rahman	Combo (IOI18_combo)	C++17	10 / 100	119 ms	472 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
str guess_sequence(int n){
    str s = "";
    int r = 0;
    while(s.size() < n){
        int sz = n - s.size();
        int ab = press(s+str(sz, 'A') + s+str(sz, 'B'));
        int xy = press(s+str(sz, 'X') + s+str(sz, 'Y'));
        if(ab > r){
            int a = press(s+str(sz, 'A'));
            if(a > r){
                r = a;
                s = (s+str(sz, 'A')).substr(0, r);
            }
            else{
                r = ab;
                s = (s+str(sz, 'B')).substr(0, r);
            }
        }
        else{
            int x = press(s+str(sz, 'X'));
            if(x > r){
                r = x;
                s = (s+str(sz, 'X')).substr(0, r);
            }
            else{
                r = xy;
                s = (s+str(sz, 'Y')).substr(0, r);
            }
        }
    }
    return s;
}

Compilation message (stderr)

combo.cpp: In function 'str guess_sequence(int)':
combo.cpp:12:20: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   12 |     while(s.size() < n){
      |           ~~~~~~~~~^~~

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