Submission #203876

#TimeUsernameProblemLanguageResultExecution timeMemory
203876staniewzkiCombo (IOI18_combo)C++14
Compilation error
0 ms0 KiB
#include<bits/stdc++.h> using namespace std; #include "combo.h" string let = "ABXY"; string conv(basic_string<int> a) { string str; for(int x : a) str += let[x]; return str; } int query(basic_string<int> a) { return press(conv(a)); } string guess_sequence(int n) { int f = -1; if(query({0, 1})) f = (query({0}) ? 0 : 1); else f = (query({2}) ? 2 : 3); swap(let[f], let[3]); basic_string<int> cur = {3}; FOR(i, 1, n - 2) { for(int i = 1; i <= n - 2; i++) { auto g = cur + 2 + 0 + cur + 2 + 1 + cur + 2 + 2 + cur + 1; cur += query(g) - i; } if(query(cur + 0)) cur += 0; else if(query(cur + 1)) cur += 1; else cur += 2; return conv(cur); }

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:20:6: error: 'i' was not declared in this scope
   20 |  FOR(i, 1, n - 2) {
      |      ^
combo.cpp:20:2: error: 'FOR' was not declared in this scope
   20 |  FOR(i, 1, n - 2) {
      |  ^~~
combo.cpp:29:1: error: expected '}' at end of input
   29 | }
      | ^
combo.cpp:14:30: note: to match this '{'
   14 | string guess_sequence(int n) {
      |                              ^
combo.cpp:29:1: warning: no return statement in function returning non-void [-Wreturn-type]
   29 | }
      | ^