Submission #986827

#	Time	Username	Problem	Language	Result	Execution time	Memory
986827		Tsagana	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

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

#define all(x) x.begin(), x.end()
#define pq priority_queue
#define lb lower_bound
#define ub upper_bound
#define pb push_back
#define eb emplace_back
#define F first
#define S second

using namespace std;

char ch(char c) {
  if (c == 'A') return 'B';
  if (c == 'B') return 'X';
  if (c == 'X') return 'Y';
  if (c == 'Y') return 'A';
}
string guess_sequence(int N) {
  string p = "";
  string s = "";
  int leng = 0;
  int coin = 0;
  char c = 'A';

  while (leng < N) {
    p = s;
    for (int i = leng; i < N; i++) {
      p += c;
    }
    coin = press(p);
    if (coin > leng) for (; leng < coin; lenf++) s += c;
    else c = ch(c);
  }
  
  return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:34:42: error: 'lenf' was not declared in this scope; did you mean 'leng'?
   34 |     if (coin > leng) for (; leng < coin; lenf++) s += c;
      |                                          ^~~~
      |                                          leng
combo.cpp:11:11: error: 'second' was not declared in this scope
   11 | #define S second
      |           ^~~~~~
combo.cpp:38:10: note: in expansion of macro 'S'
   38 |   return S;
      |          ^
combo.cpp: In function 'char ch(char)':
combo.cpp:20:1: warning: control reaches end of non-void function [-Wreturn-type]
   20 | }
      | ^