Submission #1185552

#	Time	Username	Problem	Language	Result	Execution time	Memory
1185552		eri16	Combo (IOI18_combo)	C++20	Compilation error	0 ms	0 KiB

combo

#include "combo.h"

using namespace std;

string solve(string x,string y,string z, string k,int N){
    
    
    
    int sz=k.size();
    
    if (sz!=N-1){
         string temp=k+x+x+k+x+y+k+x+z+k+y;   
    
    if (press(temp)==sz){
        k+=z;
    }
    if (press(temp)==sz+1){
        k+=y;
    }    
    if (press(temp)==sz+2){
        k+=x;
    }    
    
    return solve(x,y,z,k,N);
    }
    if (sz==N-1){
        
    string temp=k+x;
        
  if (press(temp)==N){
      return (temp);
  }
  
    string temp=k+y;  
  if (press(temp)==N){
      return (temp);
  }  
  else{
      return (k+z);
  }
  
    }
    
    
    
    
    
}






string guess_sequence(int N) {
    
    
    
  string p = "";
  string check = "";
  
  string ans;
  
  check += "ab";
  
  if (press(check)>=1){
      
      check.clear();
      
      check+="a";
      
      if (press(check)==1){
          ans=solve ("x","y","b","a",N);
      }
      if (press(check)==0){
          ans=solve ("x","y","a","b",N);
      }     
  }
  
  if (press(check)==0){
      
      check.clear();
      
      check+="x";
      
      if (press(check)==1){
          ans=solve ("b","y","a","x",N);
      }
      if (press(check)==0){
          ans=solve ("x","b","a","y",N);
      }     
  }  

  return ans;
  
  
  
}

Compilation message (stderr)

combo.cpp: In function 'std::string solve(std::string, std::string, std::string, std::string, int)':
combo.cpp:34:12: error: redeclaration of 'std::string temp'
   34 |     string temp=k+y;
      |            ^~~~
combo.cpp:28:12: note: 'std::string temp' previously declared here
   28 |     string temp=k+x;
      |            ^~~~
combo.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type]
   48 | }
      | ^