Submission #769273

#	Time	Username	Problem	Language	Result	Execution time	Memory
769273		Mery2005	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include <iostream>
#include <algorithm>
#include <queue>
#include <cmath>
#include <vector>
#include <list>
#include <string>
#include <unordered_map>
#include <map>
#include <set>
#include <stack>
#include <string>
#include <iomanip>
#include <fstream>
 
using namespace std;

void fastio() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
}

const long long mod = 1e9+7;
const int N = 3e6+5;
int a[N] , dp[N];

string guess_sequence(int N){
  string t;
  char x[4];
  if(press("A")){
    t = "A";
    x[0] = 'B';
    x[1] = 'X';
    x[2] = 'Y';
  }
  if(press("B")){
    t = "B";
    x[0] = 'A';
    x[1] = 'X';
    x[2] = 'Y';
  }
  if(press("X")){
    t = "X";
    x[0] = 'B';
    x[1] = 'A';
    x[2] = 'Y';
  }
  if(press("Y")){
    t = "Y";
    x[0] = 'B';
    x[1] = 'X';
    x[2] = 'A';
  }
  string s = t;
  int num = 1;
  for(int i = 2 ; i <= N ; i++){
    for(int j = 0 ; j < 3 ; j++){
      string temp = s;
      temp += x[j];
      if(press(temp) > num){
        num++;
        s = temp;
        break;
      }
    }
  }
  return s;
}

// int main() {
  
//     return 0;
// } 

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:30:6: error: 'press' was not declared in this scope
   30 |   if(press("A")){
      |      ^~~~~
combo.cpp:36:6: error: 'press' was not declared in this scope
   36 |   if(press("B")){
      |      ^~~~~
combo.cpp:42:6: error: 'press' was not declared in this scope
   42 |   if(press("X")){
      |      ^~~~~
combo.cpp:48:6: error: 'press' was not declared in this scope
   48 |   if(press("Y")){
      |      ^~~~~
combo.cpp:60:10: error: 'press' was not declared in this scope
   60 |       if(press(temp) > num){
      |          ^~~~~