Submission #1043713

#	Time	Username	Problem	Language	Result	Execution time	Memory
1043713		sofpp	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

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

string guess_sequence(int N) {
  string p = "";string S = "";
  if(press("AB")>=1){
    if(press("A")==1){
      p+="A";
    }
    else{
      p+="B";
    }
  }
  else{
    if(press("X")=+1){
      p+="X";
    }
    else{
      p+="Y";
    }
  }
  vector<string> a;
  if(p!="A")a.push_back("A");
  if(p!="B")a.push_back("B");
  if(p!="X")a.push_back("x");
  if(p!="Y")a.push_back("Y");

  for(int i=0;i<N-1;i++){
    string temp="";
    temp+=(p+a[0]+p+a[1]+a[0]+p+a[1]+a[1]+p+a[1]+a[2]);
    if(press(temp)==2){
      p+=a[0];
    }
    if(press(temp)==3){
      p+=a[1];
    }else{
      p+=a[2];
    }
  }
  if(N>1){
    if(press(p+a[0]+p+a[1])>=1){
      if(press(p+a[0])==1){
        p+=a[0];
      }
      else{
        p+=a[1];
      }
    }
    else{
      p+=a[2];
    }
  }
  return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:16:13: error: lvalue required as left operand of assignment
   16 |     if(press("X")=+1){
      |        ~~~~~^~~~~