Submission #1177657

#	Time	Username	Problem	Language	Result	Execution time	Memory
1177657		iulia_morariu	Hotter Colder (IOI10_hottercolder)	C++20	Compilation error	0 ms	0 KiB

hottercolder

#include "grader.h"

int HC(int n){
    int l = 1, r = n;
    int sol = 1;
    int last = -1;
    while(abs(l - r) >= 3){
        cout << "l = " << l << " r = " << r << '\n';
        int len = (r - l + 1) / 3;
        int v1 = l + len;
        int v2 = r - len;

        Guess(v1);
        int q = Guess(v2);
        last = v2;

        if(q == 0){
            l = v1; r = v2;
        }else if(q == 1){
            l = v1;
        }else if(q == -1){
            r = v2;
        }
    }

    if(l != r){
        if(last == l){
            int q = Guess(r);
            if(q == 1) return r;
            else return l;
        }else if(last == r){
            int q = Guess(l);
            if(q == 1) return l;
            else return r;
        }else{
            Guess(l);
            int q = Guess(r);
            if(q == 1) return r;
            else return l;
        }
    }

    return l;
} 

Compilation message (stderr)

hottercolder.cpp: In function 'int HC(int)':
hottercolder.cpp:7:11: error: 'abs' was not declared in this scope
    7 |     while(abs(l - r) >= 3){
      |           ^~~
hottercolder.cpp:8:9: error: 'cout' was not declared in this scope
    8 |         cout << "l = " << l << " r = " << r << '\n';
      |         ^~~~