Submission #1191930

#TimeUsernameProblemLanguageResultExecution timeMemory
1191930p4r4d0_xCombo (IOI18_combo)C++20
Compilation error
0 ms0 KiB
#include "combo.h" #include<bits/stdc++.h> using namespace std; #define pb push_back #define ll long long string guess_sequence(int N) { vector<char> a = {'A', 'B', 'X', 'Y'}; string s; if(press("AB")){ if(press("A")) s = "A"; else s = "B"; } else if(press("X"))s="X"; else s = "Y"; if(n!=3)return "a"; ll cnt = 1; vector<char> v; for(int i = 0; i < 4; ++i){ if(a[i] != s[0]){ v.pb(a[i]); } } string b = "", x = "", y = ""; b += v[0]; x += v[1]; y += v[2]; while(1){ cnt++; if(cnt==N){ if(press(s + b) == N){ s += b; } else if(press(s + x) == N){ s += x; } else s += y; break; } else{ ll count = press(s + b + s + x + b + s + x + y + s + x + x); if(count == cnt ){ s += b; } else if(count == cnt + 1){ s += x; } else s += y; } } return s; }

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:16:6: error: 'n' was not declared in this scope
   16 |   if(n!=3)return "a";
      |      ^