Submission #771050

#	Time	Username	Problem	Language	Result	Execution time	Memory
771050		nnin	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
using namespace std;

string guess_sequence(int N) {
  string S;
  string opt;
  if(press("AB")) {
    if(press("A")) {
        S = "A";
        opt = "BXY";
    } else {
        S = "B";
        opt = "AXY";
    }
  } else {
    if(press("X")) {
        S = "X";
        opt = "ABY";
    } else {
        S = "Y";
        opt = "ABX";
    }
  }

    for(int i=1;i<N-1;i++) {
      /*if(press(S+opt[0])>i) {
        S += opt[0];
      } else if(press(S+opt[1])>i) {
        S += opt[1];
      } else {
        S += opt[2];
      }*/
      string tmp = S+opt[0]+opt[0]+S+opt[0]+opt[1]+S+opt[0]+opt[2]+S+opt[1];
      int ct = press(tmp);
      if(ct>i+1) {
        S += opt[0];
      } else if(ct==i+1) {
        S += opt[1];
      } else {
        S += opt[2];
      }
    }
    if(press(S+opt[0])==N) {
        S += opt[0];
    } else if(press(S+opt[1])==N) {
        S += opt[1];
    } else {
        S += opt[2];
    }
  return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:7:6: error: 'press' was not declared in this scope
    7 |   if(press("AB")) {
      |      ^~~~~
combo.cpp:34:16: error: 'press' was not declared in this scope
   34 |       int ct = press(tmp);
      |                ^~~~~
combo.cpp:43:8: error: 'press' was not declared in this scope
   43 |     if(press(S+opt[0])==N) {
      |        ^~~~~