Submission #998321

#	Time	Username	Problem	Language	Result	Execution time	Memory
998321		Roman70	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.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.push_back('A');
                flag = 'A';
            }
            else if(sz[1]){
                correct.push_back('B');
                flag = 'B';
            }
            else if(sz[2]){
                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.push_back('B');
            }
            else if(sz[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.push_back('A');
            }
            else if(sz[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.push_back('A');
            }
            else if(sz[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.push_back('A');
            }
            else if(sz[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:10:26: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   10 |     while(correct.size() != N){
      |           ~~~~~~~~~~~~~~~^~~~
combo.cpp:14:21: error: 'press' was not declared in this scope
   14 |             sz[0] = press("A");
      |                     ^~~~~
combo.cpp:36:26: error: 'press' was not declared in this scope
   36 |                  sz[0] = press(correct + "B");
      |                          ^~~~~
combo.cpp:48:26: error: 'press' was not declared in this scope
   48 |                  sz[0] = press(correct + "A");
      |                          ^~~~~
combo.cpp:61:26: error: 'press' was not declared in this scope
   61 |                  sz[0] = press(correct + "A");
      |                          ^~~~~
combo.cpp:74:26: error: 'press' was not declared in this scope
   74 |                  sz[0] = press(correct + "A");
      |                          ^~~~~