Submission #133402

#	Time	Username	Problem	Language	Result	Execution time	Memory
133402		reda	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include<bits/stdc++.h>
#include "combo.h"
using namespace std ;
string guess_sequence(int N)
{
    if(N==3)
    {
        string ans="";
        string use[4]={"A","B","X","Y"};
        int g=-1;
        string t;
        for(int i=0;i<4;i++)
        {
            if(press(use[i])>g)
            {
                g=press(p);
                t=use[i];
            }
        }
        ans+=t;
        string s="";
        for(int i=0;i<4;i++)
        {
            if(use[i]==t)continue;
            s+=use[i];
        }
        int i=0,pv=press(ans);
        while (ans.size()!=3)
        {
            string p=ans;
            p+=s[i];
            int k =press(p);
            if(k>prev)
            {
                ans+=s[i];
            }
            else i++;
            i=i%3;
        }
        return ans;
    }
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:17:25: error: 'p' was not declared in this scope
   17 |                 g=press(p);
      |                         ^
combo.cpp:34:17: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator>'
   34 |             if(k>prev)
      |                ~^~~~~
combo.cpp:28:17: warning: unused variable 'pv' [-Wunused-variable]
   28 |         int i=0,pv=press(ans);
      |                 ^~
combo.cpp:43:1: warning: control reaches end of non-void function [-Wreturn-type]
   43 | }
      | ^