Submission #998328

#	Time	Username	Problem	Language	Result	Execution time	Memory
998328		Roman70	Combo (IOI18_combo)	C++17	30 / 100	31 ms	848 KiB

combo

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

string guess_sequence(int N) {
    string correct;
    int sz[3];
    sz[0] = sz[1] = sz[2] = 0;
    char flag;
    while(correct.size() != N){
        
        if(!correct.size()){
            int sz[3];
            sz[0] = press("A");
            sz[1] = press("B");
            sz[2] = press("X");
            if(sz[0] == correct.size()+1) {
                correct.push_back('A');
                flag = 'A';
            }
            else if(sz[1]== correct.size()+1){
                correct.push_back('B');
                flag = 'B';
            }
            else if(sz[2]== correct.size()+1){
                correct.push_back('X');
                flag = 'X';
            }
            else{
                correct.push_back('Y');
                flag = 'Y';
            }
        }
        else{
            if(flag == 'A'){
                 sz[0] = press(correct + "B");
            sz[1] = press(correct + "X");
            if(sz[0]== correct.size()+1){
                correct.push_back('B');
            }
            else if(sz[1]== correct.size()+1){
            correct.push_back('X');
            }
            else 
             correct.push_back('Y');
            }
            else if(flag == 'B'){
                 sz[0] = press(correct + "A");
            sz[1] = press(correct + "X");
             if(sz[0] == correct.size()+1){
                correct.push_back('A');
            }
            else if(sz[1]== correct.size()+1){
            correct.push_back('X');
            }
            else 
             correct.push_back('Y');
            }
            
            else if(flag == 'X'){
                 sz[0] = press(correct + "A");
            sz[1] = press(correct +"B");
             if(sz[0]== correct.size()+1){
                correct.push_back('A');
            }
            else if(sz[1]== correct.size()+1){
            correct.push_back('B');
            }
            else 
             correct.push_back('Y');
            }
            
            else if(flag == 'Y'){
                 sz[0] = press(correct + "A");
            sz[1] = press(correct +"B");
             if(sz[0]== correct.size()+1){
                correct.push_back('A');
            }
            else if(sz[1]== correct.size()+1){
            correct.push_back('B');
            }
            else 
             correct.push_back('X');
            }
            }
        }
        
        return correct;
    }
    

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:11:26: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   11 |     while(correct.size() != N){
      |           ~~~~~~~~~~~~~~~^~~~
combo.cpp:18:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |             if(sz[0] == correct.size()+1) {
      |                ~~~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:22:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |             else if(sz[1]== correct.size()+1){
      |                     ~~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:26:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |             else if(sz[2]== correct.size()+1){
      |                     ~~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:39:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |             if(sz[0]== correct.size()+1){
      |                ~~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:42:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |             else if(sz[1]== correct.size()+1){
      |                     ~~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:51:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |              if(sz[0] == correct.size()+1){
      |                 ~~~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:54:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |             else if(sz[1]== correct.size()+1){
      |                     ~~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:64:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |              if(sz[0]== correct.size()+1){
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:67:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |             else if(sz[1]== correct.size()+1){
      |                     ~~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:77:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |              if(sz[0]== correct.size()+1){
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:80:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |             else if(sz[1]== correct.size()+1){
      |                     ~~~~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 25 / 95