Submission #232235

#	Time	Username	Problem	Language	Result	Execution time	Memory
232235		dannber_BR	Combo (IOI18_combo)	C++14	0 / 100	1 ms	200 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>

using namespace std;

string guess_sequence(int N) {
  string Btns[] = {"A","B","X","Y"};
  string s;
  int p;
  if (press(Btns[0]) == 1) {
    s += Btns[0];
    p = 0;
  }
  else if (press(Btns[1]) == 1) {
    s += Btns[1];
    p = 1;
  }
  else if (press(Btns[2]) == 1){
   s += Btns[2];
   p = 2;
  }
  else if (press(Btns[3]) == 1) {
    s += Btns[3];
    p = 3;
  }

  for(int i = 2;i <= N;i++)
  {
    for(int j = 0;j < 4;j++)
    {
      if(j != p) {
        if(press(Btns[j]) == i) s += Btns[j];
      }
    }
  }
  return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:31:7: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized]
   31 |       if(j != p) {
      |       ^~

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