Submission #554830

#	Time	Username	Problem	Language	Result	Execution time	Memory
554830		kevinxiehk	Hotter Colder (IOI10_hottercolder)	C++17	Compilation error	0 ms	0 KiB

hottercolder

#include <bits/stdc++.h>
#include "grader.h"
#define mp make_pair
#define pb emplace_back
#define fi first
#define se second
using namespace std;
 
int Guess (int x);
 
int HC(int n){
    int l = 1, r = n;
    int last = 1;
    Guess(1);
    while(l < r) {
        if(last != l && last != r) {
            Guess(l); last = l;
        }
        int k = guess(l ^ r ^ last);
        last = l ^ r ^ last;
        if(k == 0) {
            return (l + r) / 2;
        }
        else if((k == 1 && r == last) || (k == 0 && l == last)) {
            l = (l + r) / 2 + 1;
        }
        else {
            r = (l + r + 1) / 2 - 1;
        }
    }
    return l;
}

Compilation message (stderr)

hottercolder.cpp: In function 'int HC(int)':
hottercolder.cpp:19:17: error: 'guess' was not declared in this scope; did you mean 'Guess'?
   19 |         int k = guess(l ^ r ^ last);
      |                 ^~~~~
      |                 Guess