Submission #625154

#	Time	Username	Problem	Language	Result	Execution time	Memory
625154		Mr_Husanboy	Combo (IOI18_combo)	C++14	5 / 100	1 ms	256 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>

using namespace std;

string guess_sequence(int N) {
    string p = "";
    string let = "ABXY";
    map<char,int> used;
    int n = N;
    for(int i = 0; i < 4; i ++){
        random_shuffle(let.begin(), let.end());
        for(auto u : let){
            if(used[u]) continue;
            p.push_back(u);
      //  cout << p << endl;
            if(press(p) == p.size()) break;
            p.pop_back();
        }
        used[p.back()] = 0;
        if(p.size() == n) break;
        while(p.size() < n){
           //     cout << p << endl;
            p.push_back(p.back());
            if(press(p) != p.size()){
                p.pop_back(); break;
            }
        }
        if(p.size() == n) break;
    }
//    cout << p << endl;
    return p;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:17:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |             if(press(p) == p.size()) break;
      |                ~~~~~~~~~^~~~~~~~~~~
combo.cpp:21:21: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   21 |         if(p.size() == n) break;
      |            ~~~~~~~~~^~~~
combo.cpp:22:24: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   22 |         while(p.size() < n){
      |               ~~~~~~~~~^~~
combo.cpp:25:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |             if(press(p) != p.size()){
      |                ~~~~~~~~~^~~~~~~~~~~
combo.cpp:29:21: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   29 |         if(p.size() == n) break;
      |            ~~~~~~~~~^~~~

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