Submission #592804

#	Time	Username	Problem	Language	Result	Execution time	Memory
592804		Summers	Combo (IOI18_combo)	C++14	5 / 100	1 ms	272 KiB

combo

#include "combo.h"
#include<iostream>
using namespace std;
std::string guess_sequence(int n) {

  string s,s1;
  long long br=1,le=0;
  char cc;
  char m[10]={'A','B','X','Y'};

  if(press("XY"))
  {
      if(press("X")){s="X";cc='X';}
      else {s="Y";cc='Y';}
  }
  else if(press("A")){s="A";cc='A';}
  else {s="B";cc='B';}

   char c[2];

      for(int i=0;i<=3;i++)
      {
          if(m[i]!=cc)c[le++]=m[i];
      }
  while(br<n-1)
  {
     s1=s+c[0]+c[1]+s+c[0]+c[0]+s+c[0]+c[2]+s+c[1];

     long long is=press(s1);

     if(is==br){s=s+c[2];br++;continue;}
     if(is==br+1){s=s+c[1];br++;continue;}
     s=s+c[0];br++;continue;
  }
  if(press(s+c[0])==br+1)s+=c[0];
  else if(press(s+c[1])==br+1)s+=c[1];
  else s+=c[2];

  return s;

}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:27:43: warning: array subscript 2 is above array bounds of 'char [2]' [-Warray-bounds]
   27 |      s1=s+c[0]+c[1]+s+c[0]+c[0]+s+c[0]+c[2]+s+c[1];
      |                                        ~~~^
combo.cpp:19:9: note: while referencing 'c'
   19 |    char c[2];
      |         ^
combo.cpp:37:14: warning: array subscript 2 is above array bounds of 'char [2]' [-Warray-bounds]
   37 |   else s+=c[2];
      |           ~~~^
combo.cpp:19:9: note: while referencing 'c'
   19 |    char c[2];
      |         ^

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